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Printed tartan fabric with wireless charging coils, overlaid with multiple illuminated electronic circuit boards
Screen printed e-textile coils showing wireless powering of flexible circuits through the fabric.
An e-textile circuit swatch
A dress with red LEDs built into the fabric

Electronic textiles or e-textiles are fabrics that enable electronic components such as batteries, lights, sensors, and microcontrollers to be embedded in them.[1][2] Many smart clothing items, wearable technology products, and wearable computing projects involve the use of e-textiles.[3]

Electronic textiles are distinct from wearable computing because the emphasis is placed on the seamless integration of textiles with electronic elements like microcontrollers, sensors, and actuators. Furthermore, e-textiles need not be wearable, as they are also found in interior design.

A new report from Cientifica Research examines the markets for textile-based wearable technologies, the companies producing them, and the enabling technologies. The report identifies three distinct generations of textile wearable technologies:

  1. "First-generation" wearables attach a sensor to apparel. This approach is currently taken by sportswear brands such as Adidas, Nike, and Under Armour.
  2. "Second-generation" products embed the sensor in the garment, as demonstrated by current products from Samsung, Alphabet, Ralph Lauren, and Flex.
  3. In "third-generation" wearables, the garment is the sensor. A growing number of companies are creating pressure, strain, and temperature sensors for this purpose.[citation needed]

Future applications for e-textiles may include sports and wellness products, as well as medical devices for patient monitoring. Technical textiles, fashion, and entertainment will also be significant application areas.[4]

History

[edit]

The basic materials needed to construct e-textiles, conductive threads, and fabrics have been around for over 1000 years.[clarification needed] In particular, artisans have been wrapping fine metal foils, most often gold and silver, around fabric threads for centuries.[5] Many of Queen Elizabeth I's gowns, for example, were embroidered with gold-wrapped threads.

At the end of the 19th century, as people developed and grew accustomed to electric appliances, designers and engineers began to combine electricity with clothing and jewelry—developing a series of illuminated and motorized necklaces, hats, brooches and costumes.[6][7] For example, in the late 1800s, a person could hire young women adorned in light-studded evening gowns from the Electric Girl Lighting Company to provide cocktail party entertainment.[8]

In 1968, the Museum of Contemporary Craft in New York City held a ground-breaking exhibition called Body Covering that focused on the relationship between technology and apparel. The show featured astronauts' space suits along with clothing that could inflate and deflate, light up, and heat and cool itself.[9] Particularly noteworthy in this collection was the work of Diana Dew,[10] a designer who created a line of electronic fashion, including electroluminescent party dresses and belts that could sound alarm sirens.[11]

In 1985, inventor Harry Wainwright created the first fully animated sweatshirt. The shirt consisted of fiber optics, leads, and a microprocessor to control individual frames of animation. The result was a full-color cartoon displayed on the surface of the shirt. in 1995, Wainwright went on to invent the first machine enabling fiber optics to be machined into fabrics, the process needed for manufacturing enough for mass markets and, in 1997, hired a German machine designer, Herbert Selbach, from Selbach Machinery to produce the world's first computer numerical control (CNC) machine able to automatically implant fiber optics into any flexible material. Receiving the first of a dozen patents based on LED/Optic displays and machinery in 1989, the first CNC machines went into production in 1998 beginning with the production of animated coats for Disney Parks in 1998. The first ECG bio-physical display jackets employing LED/optic displays were created by Wainwright and David Bychkov, the CEO of Exmovere at the time in 2005 using GSR sensors in a watch connected via Bluetooth to the embedded machine washable display in a denim jacket and were demonstrated at the Smart Fabrics Conference held in Washington, D.C. May 7, 2007. Additional smart fabric technologies were unveiled by Wainwright at two Flextech Flexible Display conferences held in Phoenix, Arizona, showing infrared digital displays machine-embedded into fabrics for IFF (Identification of Friend or Foe) which were submitted to BAE Systems for evaluation in 2006 and won an "Honorable Mention" award from NASA in 2010 on their Tech Briefs, "Design the Future" contest. MIT personnel purchased several fully animated coats for their researchers to wear at their demonstrations in 1999 to bring attention to their "Wearable Computer" research. Wainwright was commissioned to speak at the Textile and Colorists Conference in Melbourne, Australia on June 5, 2012. He was requested to demonstrate his fabric creations that change color using any smartphone, indicate callers on mobile phones without a digital display, and contain Wi-Fi security features that protect purses and personal items from theft.

Embroidered conductive thread

In the mid-1990s a team of MIT researchers led by Steve Mann, Thad Starner, and Sandy Pentland began to develop what they termed wearable computers. These devices consisted of traditional computer hardware attached to and carried on the body. In response to technical, social, and design challenges faced by these researchers, another group at MIT, which included Maggie Orth and Rehmi Post, began to explore how such devices might be more gracefully integrated into clothing and other soft substrates. In 1999, Rehmi Post came up with "E-broidery," a method for embedding electronic circuits into textiles by using conductive threads and digital embroidery. This led to the development of Plastic Threaded Chip Carriers, which then led to the integration of standard microchips into fabrics. A first application was the creation of a wearable MIDI jacket which featured embroidered touch sensors and audio components. Post's work created a foundation for more advanced e-textiles and advocated for the importance of washability and durability in e-textiles. Among other developments, this team explored integrating digital electronics with conductive fabrics and developed a method for embroidering electronic circuits.[12][13] One of the first commercially available wearable Arduino based microcontrollers, called the Lilypad Arduino, was also created at the MIT Media Lab by Leah Buechley.

Overview

[edit]

The field of e-textiles can be divided into two main categories:

  • E-textiles with classical electronic devices such as conductors, integrated circuits, LEDs, OLEDs, and conventional batteries embedded into garments.[14]
  • E-textiles with electronics integrated directly into the textile substrates.[15] This can include either passive electronics such as conductors and resistors or active components like transistors, diodes, and solar cells.

E-textiles are often constructed using various types of conductive yarns, including metal wire filaments, metal-coated polymer yarns, spun yarns blended with conductive materials, wet-spun conductive polymers, and graphene-coated yarns.[16]

Most research and commercial e-textile projects are hybrids where electronic components embedded in the textile are connected to classical electronic devices or components. Some examples are touch buttons that are constructed completely in textile forms by using conducting textile weaves, which are then connected to devices such as music players or LEDs that are mounted on woven conducting fiber networks to form displays.[17]

Printed sensors for both physiological and environmental monitoring have been integrated into textiles[18] including cotton,[19] Gore-Tex,[20] and neoprene.[21] These sensors are capable of detecting parameters such as glucose levels and other biomarkers relevant to physical health.[22]

Sensors

[edit]

Smart textile fabric can be made from materials ranging from traditional cotton, polyester, and nylon, to advanced Kevlar with integrated functionalities. At present, however, fabrics with electrical conductivity are of interest.[23] Electrically conductive fabrics have been produced by deposition of metal nanoparticles around the woven fibers and fabrics. The resulting metallic fabrics are conductive, hydrophilic, and have high electroactive surface areas. These properties render them ideal substrates for electrochemical biosensing, which has been demonstrated with the detection of DNA and proteins.[24]

There are two kinds of smart textile (fabric) products that have been developed and studied for health monitoring: Fabric with textile-based sensor electronics and fabric that envelopes traditional sensor electronics. It has shown that weaving can be used to incorporate electrically conductive yarn into a fabric to obtain a textile that can be used as a "Wearable Motherboard". It can connect multiple sensors on the body, such as wet gel ECG electrodes, to the signal acquisition electronics. Later research has shown that conductive yarns can be instrumental in the fabrication of textile-based sensors made of fabric or metallic meshes coated with silver or conductive metal cores woven into the fabric.[25]

There are two broad approaches to the fabrication of garments with ECG sensor electrodes in research:

  • Integration into finished garments: This method involves attaching sensor elements to garments that have already been manufactured. Electrodes can be stitched into appropriate locations or applied using deposition techniques that transfer functional materials onto the fabric's surface.
  • Fabrication with smart materials: This method introduces functional materials during the manufacturing process rather than afterward. Textile fabrication techniques, such as weaving or nonwoven formation, embed components directly into the textile.[25]

Fibretronics

[edit]

Just as in classical electronics, the construction of electronic capabilities on textile fibers requires the use of conducting and semi-conducting materials such as a conductive textile. [citation needed] There are a number of commercial fibers today that include metallic fibers mixed with textile fibers to form conducting fibers that can be woven or sewn.[26] However, because both metals and classical semiconductors are stiff material, they are not very suitable for textile fiber applications, since fibers are subjected to much stretch and bending during use.

Smart wearables are consumer-grade connected electronic devices that may be embedded into clothing.[citation needed]

One of the most important issues of e-textiles is that the fibers should be washable. Electrical components would thus need to be insulated during washing to prevent damage.[27]

The use of printed e-textiles, created using methods such as screen printing, offers much higher flexibility and comfort compared to textile fibers.[28] A new class of electronic materials that can be printed is the class of organic electronics materials, which can be conducting, as well as semiconducting, and designed as inks and plastics.[citation needed] Graphene, in particular, has attracted considerable attention due to its excellent conductivity, among other attributes. However, since many of these materials are water-based, the use of protective coatings is essential to maintain conductivity and long-term stability. In addition, the mechanical stress of washing can degrade the ink and cause a loss of electrical performance if not protected.[29]

Researchers developed washable and durable magnetic field-sensing electronic textiles. These textiles integrate flexible magnetoresistive sensors within braided yarns, enabling touchless interaction through gestures. Potential applications include interactive clothing, virtual reality navigation, and safety monitoring in specialized garments.[30]

Some of the most advanced functions that have been demonstrated in the lab include:

  • Organic fiber transistors: These are textile-based transistors that are fully compatible with standard textile manufacturing processes. They are carbon-based and contain no metal components, which results in a lightweight and environmentally friendly design.[31][32]
  • Organic solar cells on fibers: These are photovoltaic devices made from carbon-based semiconducting materials, designed to be flexible and lightweight. When applied to textile fibers, they allow fabrics to harvest solar energy, potentially powering wearable electronics.[33]

Healthcare

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Vital Sign Monitoring

[edit]

E-textiles can be used to monitor vital signs through integrated electronics. Sensors embedded in fabrics can track parameters such as heart rate, respiratory rate, and temperature.[34] The integration of sensors allows patients to wear non-invasive garments that provide real-time data to healthcare providers, enabling earlier detection of health issues and remote patient monitoring. Sensor technologies such as conductive yarns and printed electronics have been adapted for flexible and washable fabrics suitable for daily use.[35]

Chronic Disease Management

[edit]

E-textiles are used in the management of chronic diseases such as diabetes. These e-textiles assist in monitoring biomarkers like glucose, lactate, and cortisol by analyzing the wearer's sweat through integrated sensors. Monitoring biomarkers through e-textiles has been reported as a less invasive alternative to blood tests. Sweat contains biochemical information that reflects metabolic and stress-related changes in the body, which can serve as a medium for continuous health assessment.[36]

Assistive Technologies

[edit]

E-textiles are used in assistive technology for individuals with disabilities. These textiles can incorporate sensors, actuators, and communication modules to help address challenges related to mobility, perception, and communication. For example, e-textiles equipped with motion and muscle sensors can assist in physical rehabilitation by tracking limb movement and providing feedback during stroke recovery.[37] Similarly, tactile and auditory e-textile systems can be used to support people with visual impairments by translating Braille into speech.[38] Integrating these functions into clothing can reduce bulk and weight compared to external equipment and allows continuous support during daily activities.

Sports

[edit]

In sports, e-textiles can be used to monitor player performance and physical metrics. By embedding sensors within uniforms and equipment, these textiles can measure physiological data such as heart rate, muscle activity, energy expenditure, and distance covered. The collected information can be used to analyze performance, track workload, and detect fatigue or potential injury.[39] Unlike traditional wearable devices, e-textiles integrate sensors directly into garments and equipment. This integration allows continuous, real-time monitoring during activity without restricting movement.

Military

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E-textiles are used in military applications to track the health, vital signs, and location of soldiers, providing real-time information that can be used for operational safety and decision-making in the field. The data collected by these textiles can be used to monitor the physical and mental states of soldiers. Some e-textiles also integrate environmental sensors, allowing soldiers to receive alerts about exposure to hazardous conditions such as extreme heat or toxic chemicals.[40]

See also

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References

[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

E-textiles

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from Grokipedia
E-textiles, also known as electronic textiles, are smart fabrics that integrate electronic components such as sensors, actuators, conductive fibers, and processing units into textile structures, enabling functionalities like environmental sensing, actuation, data transmission, and interaction with users. These materials combine the flexibility, , and comfort of traditional textiles with the computational power of , allowing for seamless wearable devices that respond dynamically to stimuli such as , motion, or . The development of e-textiles traces back to the mid-1990s, when initial research focused on attaching rigid electronic components to fabrics, marking the first generation of wearable integrations. By the early 2000s, advancements led to , embedding smaller devices like sensors and microcontrollers directly into textiles, with commercial examples such as the 2000 launch of the Reima Cyberia survival suit featuring embedded sensors including GPS, a , , and embroidered electrodes. Subsequent progress in the introduced the third generation of fully textile-based systems, incorporating flexible conductive yarns and inks, driven by innovations in materials like conductive polymers (e.g., PEDOT:PSS) and carbon nanotubes. Key components of e-textiles include a base fabric for , interconnects such as conductive threads or inks for , sensors for detecting parameters like strain or , actuators for responses like or shape change, power sources including batteries or energy harvesters (e.g., solar or kinetic), and microprocessors for data handling. Fabrication methods typically involve or conductive yarns, coating fibers with metallic or carbon-based materials, or printing electronic circuits onto fabrics using techniques like or . Applications of e-textiles span health monitoring (e.g., wearable garments tracking or respiration), sports performance analysis, military gear for environmental sensing, with interactive elements like gesture-controlled interfaces, and for rehabilitation devices. Notable examples include smart bras for cardiac monitoring and photovoltaic-integrated fabrics for self-powered wearables. Despite their potential, e-textiles face challenges including limited durability against washing and wear, power efficiency constraints, lack of standardized manufacturing protocols, and ensuring for prolonged contact. Future prospects emphasize scalable production of washable, flexible systems with integrated , such as supercapacitors, to enable broader adoption in and healthcare. As of 2025, the global e-textiles market is valued at approximately USD 22 billion and projected to grow significantly, with advancements in sustainable, biodegradable systems enhancing broader adoption.

Fundamentals

Definition and Principles

E-textiles, also known as electronic , are fabrics that incorporate electronic components such as sensors, actuators, and conductive pathways to enable interactive and responsive functionalities beyond traditional properties. These systems integrate directly into flexible substrates, allowing for the seamless embedding of computational elements that maintain the wearability, , and mechanical compliance of conventional fabrics. The core principle involves electromechanical coupling, where electrical signals interact with mechanical deformations of the fabric, enabling the textile to respond to physical stresses or environmental changes while preserving its structural integrity. At a fundamental level, e-textiles operate through three interconnected principles: sensing for input, processing for computation, and actuation for output, all adapted to the constraints of soft, deformable materials. Sensing converts environmental stimuli, such as mechanical or temperature variations, into electrical signals via embedded components within the textile matrix. Processing occurs through integrated microcontrollers or circuits that analyze these signals, often requiring low-power designs to accommodate the fabric's flexibility. Actuation then produces outputs, such as physical movements or visual changes, by leveraging the same conductive pathways to drive responses in the material. This triad enables the textile to function as a cohesive , where enhance rather than compromise the substrate's inherent properties like stretchability and conformability. E-textiles are distinguished by their passive and active variants, reflecting varying degrees of responsiveness. Passive e-textiles incorporate conductive elements solely for or basic detection, without independent power or reaction capabilities, such as simple conductive threads that alter resistance under deformation. In contrast, active e-textiles are powered and capable of dynamic interaction, sensing inputs and generating outputs like adjustments in response to detected changes. This field exemplifies an interdisciplinary approach, drawing from for durable conductive fibers, for circuit integration, and for scalable fabrication techniques that ensure comfort and durability. Basic functionalities illustrate these principles in action; for instance, strain sensing occurs when fabric deformation modifies the electrical resistance of embedded conductive yarns, providing a measurable input for monitoring movement. Similarly, thermal response involves components that change conductivity with fluctuations, allowing the to detect and potentially mitigate heat exposure through integrated actuation.

Generations of E-textiles

The development of e-textiles has progressed through three distinct generations, each marked by increasing levels of integration between electronic components and structures, driven by advancements in of and reductions in costs. These generations reflect a shift from bulky, externally attached systems to seamless, fabric-inherent functionalities, enhancing scalability for , flexibility for wearability, and overall integration without compromising properties. The first generation, emerging in the mid-1990s, involved attaching rigid or semi-rigid , such as sensors, directly to the surface of garments via clips, stitches, or pockets, treating the primarily as a passive carrier. This approach offered basic functionality like monitoring but suffered from limited flexibility and scalability due to the mechanical mismatch between rigid and soft fabrics, often leading to discomfort and poor during movement or washing. Representative examples include early innovations such as the ICD+ jacket (2000), where were placed in pockets or attached to monitor . Transitions to subsequent generations were propelled by the need for more unobtrusive designs, facilitated by shrinking component sizes and cheaper conductive materials. The second generation, gaining prominence in the early , advanced to embedding electronic components, such as sensors and displays, directly into the structure through , , or conductive elements into the fabric. This improved flexibility and integration, allowing for better conformability to the body and enhanced scalability via techniques, though challenges remained in maintaining electrical performance under strain or laundering. Examples include the Wearable Motherboard (1999) and Adidas's miCoach system (2014), where sensors were sewn into apparel to track biometric data like . These developments were driven by cost-effective material innovations, like conductive polymers and inks, enabling broader adoption in consumer products. The third generation, ongoing since the mid-2000s, represents fully textile-based systems where the fabric itself functions as the , , or , eliminating discrete components and achieving the highest levels of flexibility, , and seamless integration. In this , known as the "garment-as-sensor," properties like strain, , or are detected directly through the textile's structural changes, offering superior washability and comfort for long-term wear. This evolution continues to be fueled by nanoscale fabrication and cost-efficient fiber extrusion methods, paving the way for ubiquitous smart wearables.

History

Origins and Early Innovations

The incorporation of metallic threads into textiles for decorative purposes traces its origins to ancient civilizations, where gold and silver were woven into fabrics to signify wealth and status among nobility and religious elites. These threads, crafted by hammering or drawing precious metals into fine strips or wires and often wrapped around silk or other cores, date back to ancient Egypt over 3,000 years ago, and later in the Byzantine Empire starting from the 7th century AD. Although primarily ornamental, their metallic composition provided inherent electrical conductivity, laying a rudimentary foundation for later functional applications in e-textiles. The 19th century marked the transition toward electrically functional clothing, driven by emerging battery and lighting technologies. Early experiments included illuminated garments as novelties for high-society events, such as the 1883 "Electric Light" costume worn by Alice Claypoole Vanderbilt at the Vanderbilt Ball in New York. Designed by Charles Frederick Worth, this gown of yellow satin embroidered with gold and silver threads featured tiny incandescent bulbs powered by concealed batteries and concealed wiring, which could be activated to glow, captivating attendees and symbolizing the era's fascination with electricity. Similar illuminated headbands appeared in the 1883 ballet La Farandole, where performers' attire incorporated electric lights for dramatic effect. These innovations, however, were constrained by the rigidity and visibility of wires, limiting wearability beyond short-term displays. In the early , particularly during and II, military needs spurred the integration of basic into fabrics, shifting emphasis from decoration to practical functionality like thermal regulation. Electrically heated flight suits emerged around 1917 with the Royal Naval Air Service's introduction of wired waistcoats for pilots, evolving into full ensembles by the 1940s that embedded conductive wires—often —directly into garment layers to generate heat via ohmic resistance when connected to aircraft power supplies. For example, U.S. Army Air Forces' F-2 heated suits and Japanese Imperial Army's winter flying gear incorporated sewn-in heating elements to combat high-altitude cold, representing some of the first widespread uses of electronic components in wearable textiles. These advancements highlighted the potential for conductivity in harsh environments but grappled with challenges like material stiffness, electrical shorts from flexing, and the bulk of external power connections, which compromised comfort and mobility.

Modern Developments

Following , e-textiles saw sporadic innovations in the mid-20th century, including a 1968 exhibition at the Museum of Contemporary Crafts showcasing garments with integrated heating and cooling elements. The 1977 discovery of conductive polymers by Alan Heeger and colleagues enabled more flexible electronic integrations in textiles. In 1985, inventor Harry Wainwright created the first fully animated sweatshirt using fiber optics, leads, and a to display color cartoons on the fabric surface. By the late , the Wearable Motherboard emerged as a pioneering system, embedding sensors into a flexible garment for vital sign monitoring, marking a key step toward responsive structures. In the late 1990s and early 2000s, institutional research at MIT advanced e-textile fabrication through the E-broidery project, which introduced techniques for creating embroidered conductive circuits using numerically controlled sewing machines to integrate into fabrics. This approach enabled the patterning of conductive textiles for washable computing applications, marking a shift toward scalable, textile-native circuitry. Building on this, the introduction of the in 2007 by Leah Buechley provided a sewable platform designed for novice users to prototype wearable , fostering DIY e-textile creation with components like conductive thread and fabric sensors. Buechley's work emphasized accessible, craft-based integration, influencing the growth of educational and hobbyist communities in electronic textiles. The 2010s saw increased commercialization and European research initiatives focused on durable e-textiles. Google's Project Jacquard, launched in 2015, developed industrial weaving techniques to embed conductive yarns into fabrics, creating touch-sensitive interactive textiles compatible with standard looms for large-scale production. Concurrently, EU-funded projects like ProeTEX (2006–2010) advanced washable e-textile systems for protective clothing in emergency services, integrating sensors and vital sign monitors that withstood repeated laundering while enhancing user safety and coordination. These efforts addressed key challenges in reliability, paving the way for practical deployment in professional wearables. Entering the early 2020s, innovations in flexible printed circuit boards (PCBs) for textiles improved integration and durability, with techniques like digital knitting enabling of multi-modal sensors up to 2022. Academic institutions such as MIT and played pivotal roles in scaling prototypes; MIT's work on conformable e-textile suits for physiological monitoring demonstrated large-scale fabrication, while Georgia Tech's ongoing research in intelligent textiles advanced tactile interaction systems for human-technology interfaces. Buechley's contributions to DIY e-textiles, particularly through open-source platforms like LilyPad, amplified global impact by enabling widespread adoption and evolution of hardware kits in maker communities.

Technologies

Sensors and Sensing Mechanisms

Sensors in e-textiles are designed to detect environmental stimuli or physiological signals by integrating sensing elements into fabrics, enabling responsive and unobtrusive monitoring. These sensors typically operate through changes in electrical properties—such as resistance, , or voltage—triggered by mechanical, thermal, or chemical interactions with the substrate. Common types include piezoresistive, capacitive, thermoelectric, triboelectric, and biochemical sensors, each tailored to specific detection needs like strain, touch, , motion, or biomarker analysis. Piezoresistive sensors are among the most prevalent in e-textiles, functioning by measuring changes in electrical resistance due to applied strain or on the fabric. The core mechanism relies on the , where deformation alters the or internal conductivity of the sensing , quantified by the relation ΔR/R=GF⋅[ϵ](/page/Epsilon)\Delta R / R = GF \cdot [\epsilon](/page/Epsilon), with ΔR/R\Delta R / R as the relative resistance change, GFGF as the (typically 2–100 for textile-based variants), and [ϵ](/page/Epsilon)[\epsilon](/page/Epsilon) as the strain. These sensors are fabricated by conductive yarns, such as carbon nanotube-infused fibers, or coating fabrics with piezoresistive inks via or dip-coating, achieving sensitivities with gauge factors up to 50 and response times under 100 ms. For instance, silver-coated threads embedded in knitted fabrics serve as piezoresistive elements for strain detection, exhibiting low (<5%) and durability over 10,000 cycles. Capacitive sensors detect touch, proximity, or deformation by monitoring variations in capacitance between conductive electrodes integrated into the textile. The sensing principle involves changes in the dielectric constant or electrode separation caused by fabric bending or contact, leading to capacitance shifts proportional to the stimulus (e.g., ΔC∝ϵr⋅A/d\Delta C \propto \epsilon_r \cdot A / d, where ϵr\epsilon_r is the relative permittivity, AA the electrode area, and dd the distance). Fabrication often employs embroidery of conductive threads or deposition of metallic nanoparticles on fabric surfaces, yielding sensors with response times of 10–50 ms and detection ranges up to 10 mm for proximity. An example is interdigitated capacitive structures sewn into cotton substrates using silver-coated polyester yarns, which maintain stable performance under stretching up to 50% with minimal drift (<2%). Thermoelectric sensors in e-textiles measure temperature gradients by generating voltage from heat flow across junctions of dissimilar conductive materials embedded in the fabric. The Seebeck effect drives this mechanism, producing an output voltage V=S⋅ΔTV = S \cdot \Delta T, where SS is the Seebeck coefficient (often 10–100 μV/K for polymer-based textiles) and ΔT\Delta T the temperature difference. These are typically fabricated through printing thermoelectric inks containing PEDOT:PSS or carbon-based composites onto woven substrates, offering sensitivities around 50 μV/K and operational ranges from -20°C to 100°C. A representative implementation uses silk fibroin blended with carbon nanotubes as p-type legs in a flexible thermocouple array, demonstrating response times below 1 s and stability over repeated thermal cycles. Triboelectric sensors, leveraging the triboelectric nanogenerator (TENG) effect, detect mechanical stimuli like motion or pressure through contact electrification and electrostatic induction between layered textile materials. These sensors generate charge separation upon relative motion, producing open-circuit voltages up to 1000 V and power densities of 10–100 mW/m², with response times under 50 ms. Fabrication involves stacking dielectric fabrics (e.g., PDMS-coated nylon) with conductive electrodes like silver nanowires, enabling self-powered operation for applications in gesture recognition and vital sign monitoring. As of 2025, advancements include 2D material-enhanced TENGs on PET substrates achieving outputs of 1068 V for high-sensitivity motion detection. Biochemical sensors enable detection of analytes like ions or metabolites in sweat or bodily fluids by incorporating recognition elements into textile matrices, transducing chemical binding into electrical signals. Mechanisms often involve ion-selective membranes or enzyme-based reactions that alter conductivity or potential, such as in potentiometric setups where ΔE=(RT/F)ln⁡(a)\Delta E = (RT/F) \ln(a), with EE as the potential, RR the gas constant, TT temperature, FF Faraday's constant, and aa the analyte activity. Fabrication integrates these via electrospinning of polymer nanofibers or coating with bioreceptive layers on conductive fabrics, achieving limits of detection in the μM range for pH or glucose with response times of 5–30 s. For example, humidity sensors exploit fiber swelling to modulate resistance in hygroscopic conductive polymers like polypyrrole-coated cellulose, providing reversible responses with sensitivity factors of 1–5% RH⁻¹.

Actuators and Output Devices

Actuators and output devices form the responsive elements of e-textiles, converting electrical or thermal stimuli into mechanical motion, vibration, light emission, or visual changes to enable interactive functionalities in fabrics. These components are typically integrated through weaving, knitting, or coating techniques to maintain textile flexibility and comfort while achieving actuation strains up to several hundred percent in some materials. Key types include shape-memory polymers (SMPs), electroactive polymers (EAPs), piezoelectric fibers, and triboelectric actuators, which respond to triggers like temperature or voltage for contraction and expansion mechanisms. Shape-memory polymers (SMPs) serve as actuators for morphing fabrics, undergoing reversible shape changes upon heating above their transition temperature, often around 30–60°C, to enable adaptive structures like self-folding textiles. This contraction and recovery mechanism relies on polymer chain reconfiguration, achieving actuation strains of 100–200% and response times on the order of seconds, making SMPs suitable for dynamic form-fitting applications in e-textiles. Integration involves embedding SMP fibers or coatings into yarns, preserving fabric breathability while allowing remote control via embedded heating elements. Electroactive polymers (EAPs), particularly dielectric elastomers, provide haptic feedback through electrostatic actuation, where applied voltage causes rapid expansion or contraction for tactile sensations in textiles. EAPs exhibit high actuation strains exceeding 300% and fast response speeds under 1 ms, driven by Maxwell stress that deforms the polymer film between compliant electrodes woven into the fabric. This enables subtle vibrations or pressure pulses, with efficiency measured by energy density up to 100 J/kg, though challenges include high voltage requirements around 1–5 kV. Piezoelectric fibers generate vibrations as actuators by converting electrical energy into mechanical deformation via the direct piezoelectric effect, producing oscillations at frequencies up to several kHz for localized feedback in e-textiles. These fibers, often made from polyvinylidene fluoride (PVDF) or zinc oxide nanowires, achieve displacement amplitudes of 10–100 μm with response times below 1 ms, offering high efficiency in energy conversion (up to 20%) due to their inverse piezoelectric coupling. Fabrication involves drawing or electrospinning the piezoelectric material into flexible fibers that can be knitted into garments without compromising wearability. As of 2025, composite piezoelectric textiles using PVDF/BaTiO₃ show 300% higher power densities in woven forms for enhanced actuation. Triboelectric actuators utilize TENG principles for self-powered mechanical responses, such as driving LEDs or haptic feedback through tribo-induced charge flow. These achieve outputs sufficient to power 200 LEDs and strains via motion, with voltages up to 109 V in hybrid designs, integrated via layered fabrics for interactive wearables. Output devices such as light-emitting diodes (LEDs) and organic LEDs (OLEDs) are woven or embroidered into textiles for illumination, providing visible feedback through electroluminescence when current flows through embedded conductive threads. Textile-integrated OLEDs maintain brightness levels of 100–1000 cd/m² and flexibility for bending radii under 5 mm, enabling displays that conform to body contours. These devices operate via carrier injection in organic layers, with lifetimes exceeding 10,000 hours under low-power conditions. Thermal actuators in e-textiles utilize Joule heating, where electrical power P=I2RP = I^2 R (with II as current and RR as resistance) generates localized heat to induce expansion or phase changes in responsive materials, achieving temperature rises of 20–50°C in seconds. Conductive fabrics with resistances around 10–100 Ω/cm² enable efficient actuation strains of 5–20% through thermal expansion, with response speeds determined by thermal diffusivity (typically 10–100 ms). This mechanism is particularly effective for integrating with thermoresponsive elements, providing reliable output without complex electronics. Haptic vests exemplify piezoelectric or EAP fiber integration, where arrays of vibrating elements deliver directional cues through modulated oscillations, achieving perception accuracies over 85% in user tests. Similarly, color-changing fabrics incorporate thermochromic materials activated by Joule heating, shifting hues across visible spectra (e.g., blue to red) at transition temperatures of 25–40°C, enabling dynamic visual outputs with response times under 5 s and reversibility over thousands of cycles. These examples highlight how actuators and outputs enhance e-textile interactivity while prioritizing seamless fabric integration.

Power Supply and Connectivity

E-textiles demand lightweight, flexible power sources that integrate seamlessly into fabrics without compromising wearability. Flexible lithium-polymer thin-film batteries are widely adopted for their high energy density—typically ranging from 100 to 200 Wh/kg—and ability to conform to curved textile surfaces. These batteries often employ solid polymer electrolytes to enhance flexibility and safety, enabling capacities up to 25 mAh per meter in elongated formats suitable for garment integration. For instance, printed zinc-based batteries on fabrics achieve areal capacities of 54 mAh/cm² using manganese dioxide cathodes and carbon nanotube anodes, powering low-energy sensors over extended periods. To mitigate reliance on batteries, energy harvesting methods capture ambient energy from the wearer's environment or motion. Piezoelectric fibers, embedded in textiles, convert mechanical stress from activities like walking into electrical energy, yielding outputs of 8 μW under typical deformation. Thermoelectric generators exploit temperature differences between the body and ambient air, with polymer-based textile variants producing voltages of several millivolts across a 5–10 K gradient; their theoretical maximum efficiency is bounded by the Carnot limit, given by η=Th−TcTh\eta = \frac{T_h - T_c}{T_h} where ThT_h and TcT_c are the absolute temperatures of the hot and cold sides, respectively. This approach enables continuous, maintenance-free powering for body-worn devices. As of 2025, enzymatic biofuel cells using sweat as fuel achieve power densities of 2.18 mW/cm² via carbon yarn electrodes, providing biocompatible, on-body generation. Representative examples of advanced harvesting include solar-powered fibers, where photovoltaic cells like dye-sensitized or perovskite types are woven into yarns, attaining power conversion efficiencies of 10–15% under standard illumination and remaining functional after multiple wash cycles. As of 2025, perovskite-based solar textiles reach up to 25% efficiency indoors/outdoors. RF energy scavenging employs textile rectennas tuned to 2.45 GHz frequencies from Wi-Fi signals, harvesting up to hundreds of μW/cm² to charge embedded capacitors in wearables. Triboelectric nanogenerators (TENGs) harvest from motion, delivering up to 14.64 W/m² in fabric-integrated designs. These techniques often combine with supercapacitors, which provide rapid charge-discharge cycles at capacitances around 100 mF/cm² using carbon nanotube electrodes. Hybrid systems, such as TENG-solar integrations, yield up to 66.64 mW for sustained powering of wearables. Additionally, plasma-enhanced energy textiles (PEET), developed in 2025, emulate lightning mechanisms for efficient mechanical energy capture in fabrics. Connectivity in e-textiles facilitates data exchange between embedded components and external devices, primarily through low-power wireless protocols. Bluetooth Low Energy (BLE) supports medium-range transmission up to 10 meters with power consumption below 10 mW, ideal for real-time health monitoring in garments. Near-field communication (NFC) enables short-range, battery-free interactions over 5–10 cm, using passive tags for secure data transfer in authentication or payment applications. Conductive threads, such as silver-coated nylon, double as flexible antennas for these protocols, maintaining performance after 50 wash cycles when embroidered into fabrics. Integration of microcontrollers like the enhances processing and connectivity, combining BLE, Wi-Fi, and GPIO pins in a compact, low-power module that interfaces with textile sensors via conductive yarns. This allows e-textiles to form body area networks for aggregated data routing. Key challenges in power supply include achieving sufficient energy density in flexible formats, where textile-constrained batteries often fall short of rigid counterparts at 50–100 Wh/kg due to limited active material loading. Wireless charging via inductive coupling circumvents this by embedding resonant coils in fabrics, enabling efficient power transfer at distances under 1 cm with efficiencies exceeding 70% using MXene-based textiles. These issues drive ongoing research toward hybrid systems that balance harvesting, storage, and transmission for sustained operation.

Materials and Fabrication

Conductive Materials and Fibres

Conductive materials form the foundation of e-textiles by enabling electrical signal transmission within flexible, fabric-like structures. These materials must balance high electrical conductivity with mechanical properties such as flexibility and durability to withstand textile processing and wear. Primary categories include metallic coatings, conductive polymers, carbon-based nanomaterials, and semi-conducting fibers, each offering distinct advantages for integration into yarns and fabrics. Metallic materials, such as silver-coated nylon or copper-plated polyester fibers, exhibit superior electrical conductivity, often reaching values around 6.3 × 10^7 S/m for pure silver components, though practical textile implementations yield 10^4–10^5 S/m due to coating thickness. These materials provide low resistance paths for current, essential for powering embedded electronics, but their rigidity can limit flexibility under repeated bending. For instance, silver-coated cotton-spandex yarns achieve conductivities of approximately 15.7 S/m while retaining moderate tensile strength. Conductive polymers, notably poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), offer enhanced flexibility compared to metals, with conductivities tunable from 10^2 to 10^3 S/cm through dopants like ethylene glycol or DMSO. PEDOT:PSS-coated cotton fabrics can reach 52 S/cm after multiple dip cycles, enabling stretchable interconnections that endure over 80% tensile strain. Other examples include polypyrrole (PPy)-coated cotton with sheet resistances around 60 Ω/sq, valued for their lightweight nature and biocompatibility in wearable systems. Carbon-based materials, including graphene, single-walled carbon nanotubes (SWCNTs), and multi-walled carbon nanotubes (MWCNTs), provide corrosion resistance and flexibility, with conductivities up to 13,000 S/m for graphene-coated fabrics and 10^4–10^6 S/m for CNT composites. SWCNTs in filtration-based fabrics yield sheet resistances as low as 0.006 Ω/□ at high loadings, while MWCNTs on cotton achieve 0.20 S/m, supporting applications requiring bendable electrodes. These nanomaterials excel in maintaining performance under deformation, though their conductivity can vary with dispersion quality. Semi-conducting fibers incorporate organic semiconductors for transistor functionality, enabling active electronic components in textiles. Organic field-effect transistors (OFETs) on fibers, such as those using pentacene, demonstrate charge carrier mobilities exceeding 0.5 cm²/V·s under flexion stresses. Fiber-based organic electrochemical transistors (F-OECTs) utilize PEDOT:PSS channels with transconductances up to 40 mS and mobilities of 12.9 cm²/V·s, leveraging ion modulation for efficient operation in porous, 3D structures. Key properties of these materials include electrical conductivity (σ, measured in S/m), which dictates signal integrity; flexibility, assessed by strain tolerance (e.g., up to 70% for EGaIn-shelled fibers); and washability, where retention of >90% conductivity after 10–100 cycles is critical for practical use. For example, PEDOT:PSS composites on maintain functionality post-20 washes, while graphene-enhanced fabrics show only a 3.5-fold resistance increase after 10 cycles. Tensile strength retention post-laundering, often >80%, ensures structural integrity, as seen in silver-coated yarns with protective layers. In fibretronics, these materials enable advanced devices like organic fiber transistors (OFETs) for logic operations and fiber solar cells for on-textile energy generation. F-OECTs operate via reversible reactions in electrolyte-gated channels, achieving volumetric capacitances of 280 F/cm³ in porous designs. Prototypes of fiber solar cells in the have reached efficiencies up to 10%, integrating photovoltaic materials like perovskites or organics directly into conductive fibers for self-powered e-textiles. Recent advances focus on nanomaterial incorporation, such as inks for enhanced durability. Water-based coatings on fabrics boost conductivity by 10^9 times while increasing tensile strength by 60%, with stable performance after 100 bending cycles. Reduced (rGO) inks, formulated without binders, yield sheet resistances of 11.9 Ω/sq in washable e-textiles, retaining >87% functionality post-laundering through 2025 prototypes.
Material TypeExampleElectrical Conductivity (σ or Equivalent)Flexibility (Strain Tolerance)Washability (Cycles Retained)
MetallicSilver-coated ~10^5 S/m [web:90]Moderate (~20–50%)>10 cycles (>90% retention) [web:90]
Conductive PolymerPEDOT:PSS on Up to 5.2 × 10^3 S/m [web:91]High (>80%)20 cycles (stable on ) [web:91]
Carbon-basedGraphene-coated fabricUp to 1.3 × 10^4 S/m [web:92]Excellent (>100%)10 cycles (3.5× resistance rise) [web:92]
Semi-conductingPEDOT:PSS F-OECT Mobility 12.9 cm²/V·s [web:93]High (flexible 3D)N/A (encapsulated prototypes) [web:93]

Integration Techniques

Integration techniques for embedding electronics into textiles encompass a range of manufacturing processes that enable the creation of functional e-textile structures while preserving fabric flexibility and comfort. These methods can be broadly categorized into those that incorporate conductive elements during textile production (pre-manufacture) and those applied afterward (post-manufacture), allowing for tailored designs that balance performance and production efficiency. Weaving and knitting conductive yarns represent foundational pre-manufacture approaches, where metallic or polymer-coated fibers, such as silver-coated , are interlaced with conventional yarns to form circuits or sensing networks directly within the fabric substrate. For instance, weft- integrates conductive multifilament yarns to produce stretchable strain sensors with resistance changes under deformation, maintaining stability after multiple cycles. Screen and , often post-manufacture, deposit conductive inks like suspensions or formulations onto fabric surfaces to create precise conductive tracks; screen achieves low resistivity (e.g., 0.2 kΩ/sq) for washable electrodes, while inkjet enables high-resolution patterns on cotton-polyester blends. stitches conductive threads, such as silver-plated , to form flexible interconnections, as seen in multicolor electroluminescent textiles that withstand over 50 wash cycles with tensile strengths exceeding 6 N. Coating methods, including dip and spray applications of materials like PEDOT:PSS, add uniform conductive layers to fibers or fabrics, enhancing anti-static properties and compatibility for subsequent . Pre-manufacture integration, such as into yarns before , yields seamless structures with inherent durability, exemplified by e-threads incorporating RFID chips that endure mechanical stress without . In contrast, post-manufacture techniques like components onto pre-formed fabrics offer modularity but may introduce rigidity points. Advanced methods further expand capabilities: fabricates layered structures on knitted substrates, enabling complex geometries with quantified via peel tests showing forces up to several N/cm. Heterogeneous integration, highlighted in recent reviews, employs multi-material to combine conductive, luminescent, and structural fibers, producing scalable electroluminescent panels stable after 1000 bending cycles with less than 10% performance variation. Key quality metrics for these techniques include adhesion strength, assessed through standardized tests to ensure bonding integrity under strain; flexibility retention, where printed or embroidered circuits preserve electrical properties after 2000+ deformation cycles; and , with and supporting roll-to-roll production for mass manufacturing, though challenges persist in aligning heterogeneous materials without compromising yield. These metrics underscore the trade-offs in achieving robust, wearable e-textiles suitable for real-world deployment.

Applications

Healthcare and Biomedical

E-textiles have enabled advanced vital signs monitoring in healthcare by integrating sensors directly into garments for electrocardiogram (ECG) and respiration tracking. Stretchable strain sensors embedded in clothing, such as smart shirts or vests, detect chest expansion to monitor breathing patterns and deviations in respiratory rate with high accuracy during daily activities. For ECG, textile-based electrodes made from materials like silver-coated threads or PEDOT:PSS provide dry, non-adhesive interfaces that capture cardiac signals comparable to traditional Ag/AgCl electrodes, supporting continuous heart rhythm assessment in ambulatory settings. These systems transmit data via Bluetooth to external devices, facilitating real-time analysis for early detection of abnormalities like arrhythmias. In wound care, e-textile prototypes from the 2020s, such as smart bandages with embedded biosensors, monitor healing progress by tracking parameters like , , and oxygen levels in chronic wounds, particularly diabetic ulcers. These multifunctional dressings use conductive yarns to deliver targeted therapies, like electrical stimulation, while providing feedback to reduce risks and accelerate tissue regeneration. For chronic management, glucose-sensing fabrics integrate organic electrochemical transistors with enzymes like into textiles, enabling non-invasive sweat-based monitoring of blood glucose levels for patients, with detection ranges from 10 µM to 1 mM. Rehabilitation garments incorporate haptic feedback through motors or pneumatic fibers, altering body perception and aiding motor recovery in patients by providing tactile cues during exercises. Biomedical integration of bio-compatible e-textiles extends to implants and prosthetics, where materials like (PDMS) and carbon nanotubes (CNTs) form flexible sensors for long-term implantation, monitoring physiological signals without eliciting immune responses. In prosthetics, e-textile sleeves with (EMG) electrodes stimulate muscle movements and track joint strain, supporting for paraplegic rehabilitation. Clinical studies from 2022 to 2023, reviewed in 2025 and involving over 3,000 patients across multiple trials, have validated textile ECG wearables for arrhythmia detection, such as paroxysmal (PAF). For example, the NOMED-AF TECH study detected PAF in 69% of 66 participants over an average of 21.9 days, while Pagola et al. reported a cumulative detection rate of 35.9% over 90 days in 224 patients. These wearables outperform traditional Holter monitors in monitoring duration and comfort. The primary benefits of e-textiles in healthcare include continuous, non-invasive monitoring that maintains mobility and comfort during dynamic movements, with preserved even in motion-heavy scenarios. These systems enhance data accuracy for in real-world conditions, reducing the need for visits and enabling proactive interventions for chronic conditions.

Sports and Fitness

E-textiles enable performance monitoring in sports and fitness through the integration of inertial measurement units () into garments, allowing for real-time such as joint angles, patterns, and activity during activities like running and . These sensors, often embedded as flexible filaments like the MC6470, provide accurate tracking comparable to optical motion systems, facilitating analysis of athletic movements without restricting natural motion. For instance, systems like the STATSports Apex series, which incorporate housed in pods within vests, monitor player speed and acceleration in team sports, aiding coaches in optimizing training regimens. Sweat analysis for hydration monitoring is another key application, where e-textile sensors detect levels and rates during exercise to prevent and maintain performance. These sensors, woven into fabrics like sports bras with coatings, offer continuous feedback on , helping athletes adjust intake in real time. In , the Equivital LifeMonitor system, used in professional bike races, embeds such sensors in jerseys to track respiration and sweat alongside motion data, supporting optimization. Training aids in e-textiles include vibration feedback mechanisms for form correction, such as the X yoga pants, which use a module with accelerometers and haptic motors mounted on the garment, to deliver cues guiding posture and alignment during sessions. Integration with mobile apps further enhances this by providing real-time coaching; for example, Prevayl Smartwear shirts transmit performance data like to smartphones for immediate analysis and personalized recommendations. These features promote better technique adherence and in fitness routines. Compared to rigid wearable devices, e-textiles offer advantages in lightweight design and unobtrusive fit, ensuring better athlete comfort, skin contact for accurate readings, and higher compliance during prolonged use. This seamless incorporation into clothing reduces bulk, allowing for multi-sensor arrays across the body without hindering performance.

Fashion and Consumer Wearables

E-textiles have transformed fashion and consumer wearables by embedding interactive elements into everyday clothing and accessories, enabling users to control devices or express personal style through touch, gestures, and visual effects. These innovations prioritize seamless integration, where conductive threads and sensors woven into fabrics allow for intuitive interactions without compromising garment aesthetics. For instance, touch-sensitive fabrics facilitate controls like music playback or navigation, blending functionality with fashionable design. In interactive fashion, touch-sensitive textiles enable gesture-based controls embedded in apparel. The Jacquard technology, developed by in collaboration with Levi's, introduced the Commuter Trucker Jacket in 2017, featuring a cuff woven with conductive yarns that detect swipes and taps to interact with smartphones via , allowing users to manage calls or directions while riding. This project continued into the 2020s with expansions like Adidas integrations for gestures, demonstrating scalable e-textile fabrication using engineered yarns for durable touch interfaces. LED-embedded garments further enhance aesthetic interactivity, as seen in the Thunderstorm Dress by designer Anouk Wipprecht, which incorporates flexible printed LEDs into the fabric to create dynamic light patterns for fashion shows, powered by low-voltage sources for wearable comfort. These examples highlight how e-textiles shift fashion from static display to performative, user-driven experiences. Consumer wearables extend e-textiles to accessories like smart socks and illuminated items that integrate with smartphones for enhanced daily usability. Smart socks, such as those developed with e-textile pressure sensors, provide feedback on posture and gait through fabric-embedded sensing, connecting via NFC or apps to promote balanced movement in . Illuminated accessories, including LED-infused scarves and bags, allow customizable synced to music or notifications, appealing to festival-goers and urban consumers for expressive personalization. Market examples include Under Armour's connected apparel lines in the , which incorporate e-textile elements like responsive yarns for adaptive fit and subtle interactions, expanding from performance gear to pieces. DIY kits, notably Adafruit's platform, empower consumers to prototype custom e-textile designs, such as LED wristbands or gesture-responsive patches, using sewable microcontrollers and conductive thread for accessible . User interactions in e-textile emphasize to balance and utility, enabling natural movements like twists or flicks on garments without rigid hardware. An e-textile sleeve with strain sensors, for example, achieves over 90% accuracy in classifying gestures for mid-air controls, woven directly into for unobtrusive wear. This approach contrasts functional rigidity with soft, stylish forms, as microinteractions like sliding or on cords augment twist gestures for diverse inputs in apparel. Such designs foster a harmonious integration, where visual appeal—through subtle lighting or patterns—complements practical controls, encouraging broader adoption in consumer .

Industrial and Military

E-textiles have found significant applications in military contexts, where they enable real-time monitoring of soldiers' and location to enhance operational effectiveness and safety. Embedded sensors in uniforms can track physiological parameters such as , respiration, and body temperature, providing commanders with data to assess fatigue or injury risks during missions. For instance, the U.S. Army has tested prototypes of fiber-embedded wool shirts developed by MIT, which monitor and movement in field conditions as part of ongoing efforts from the into the 2020s. Integration of GPS functionality into these textiles further supports location tracking, aiding navigation in challenging terrains and improving . Protective gear incorporating e-textiles has advanced soldier safety through impact detection and hazard alerting. U.S. Army prototypes from the 2010s and 2020s include suits with sewn-in sensors that detect ballistic or blunt force impacts, transmitting alerts to prevent further injury or enable rapid medical response. These systems often feature ruggedized electronics designed for high durability under extreme conditions, such as repeated abrasion, moisture exposure, and mechanical stress. DARPA-funded research has explored adaptive camouflage fabrics using e-textiles inspired by biological mechanisms, like squid skin, which dynamically adjust color and infrared signatures to blend with surroundings, integrating seamlessly with protective uniforms while maintaining flexibility and washability. In industrial settings, e-textiles enhance worker by embedding sensors in suits and vests to detect environmental hazards and physiological stress. Safety suits for high-risk environments, such as construction sites, incorporate electrodes that monitor heat stress through core body temperature and , alerting supervisors to prevent heat-related illnesses. For firefighters, smart uniforms utilize thermal-responsive textiles with integrated sensors to track ambient heat levels and provide , reducing burn risks during operations. These designs prioritize ruggedized components for durability against flames, chemicals, and repeated laundering. Hazard alerting vests tailored for workers exemplify e-textile applications in energy sectors, where sensors detect toxic gases, falls, or proximity to machinery, issuing immediate vibrations or audio alerts to mitigate accidents. Such systems require high-durability fabrics that withstand corrosive environments and mechanical wear, often combining conductive yarns with protective coatings for reliable performance. Overall, these industrial e-textiles emphasize integration of sensing with or protective elements, ensuring functionality in mission-critical scenarios without compromising mobility.

Challenges and Prospects

Technical and Durability Issues

E-textiles face significant durability challenges due to their integration of conductive elements into flexible, deformable fabrics, leading to degradation under repeated mechanical stress and environmental exposure. Washability is a primary concern, as laundering often causes or erosion of conductive coatings, resulting in substantial loss of conductivity. For instance, untreated polyaniline-grafted fabrics exhibit a three orders of magnitude decrease in conductivity after just 10 washing cycles, dropping from approximately 3.30 × 10⁻³ S cm⁻¹ to 3.22 × 10⁻⁶ S cm⁻¹. Mechanical similarly compromises performance, with bending inducing cracks in metallic layers that increase electrical resistance over time. Silver layers on substrates, for example, show a 10-fold resistance increase after 120 to 180 bending cycles at 90°, while layers may experience a 45% rise after 50,000 cycles on certain membranes. Technical hurdles further limit e-textile reliability, particularly in and device scaling. Signal arises from motion artifacts and poor electrode-skin contact on flexible substrates, yielding low signal-to-noise ratios (SNRs) during activities, which degrades detection like ECG. is constrained by the need to maintain conductivity and flexibility at small scales, as excessive layering in 2D heterostructures can reduce and increase resistance under strain. issues for prolonged skin contact stem from chemical compositions, imbalances, and toxic residues in conductive , potentially causing or if not properly managed. Standardized testing protocols are essential for evaluating these issues, with metrics focusing on cycles to and resistance changes. The ASTM D8248 standard provides terminology for smart textiles, while ISO 6330 is widely adapted for domestic laundering simulations at around 39.7°C, assessing over an average of 19 cycles before significant functionality loss. Metrics such as percent change in resistance (used in 63–77% of tests) or complete after 2–50 cycles help quantify performance, though variability in methods hinders comparability. To address these challenges, encapsulation techniques offer protective barriers against moisture and mechanical stress, enhancing wash and bend durability without detailed fabrication specifics. For example, conformal polymer coatings on networks stabilize resistance during repeated deformations and laundering.

Sustainability and Ethical Considerations

E-textiles pose significant environmental challenges due to their integration of non-biodegradable electronic components with textile materials, contributing to (e-waste) accumulation. Traditional e-textiles often incorporate synthetic polymers and metals that resist natural decomposition, leading to long-term persistence in landfills and potential leaching of toxic substances like (e.g., , lead) into soil and water systems. This exacerbates global e-waste issues, as electronic elements in textiles complicate separation from organic fibers, resulting in higher volumes of unmanaged —estimated at up to 1 million tonnes annually worldwide if adoption scales without mitigation. Additionally, the production of for conductivity, such as rare earth metal compounds in fluorescent or electroluminescent fabrics, relies on resource-intensive of scarce elements like , increasing ecological footprints through habitat disruption and energy demands. Efforts to enhance in e-textiles include the development of biodegradable alternatives, with notable 2025 breakthroughs in cellulose-based circuits addressing end-of-life concerns. Researchers at the introduced inkjet-printed electrodes on Tencel (a renewable, cellulose-derived ), achieving full biodegradability—losing 48% weight and 98% strength after four months in —while reducing environmental impact by up to 40 times compared to conventional electronics. Complementary advances, such as tungsten-poly(butylene adipate-co-terephthalate) composite , enable mass-producible conductive yarns that degrade completely via enzymatic processes without toxic residues, supporting applications like health-monitoring sleeves. However, remains challenging; the dispersion of valuable metals (e.g., silver, ) within heterogeneous matrices renders e-textiles incompatible with existing schemes, often contaminating recovery and lowering recycled material quality. Ethical considerations in e-textiles encompass risks from continuous data monitoring, barriers for underserved populations, and labor inequities in production. Wearable e-textiles collect sensitive biometric data (e.g., , ), raising concerns over unauthorized access and inadequate breach notifications, with many manufacturers showing high risk in policies for timely incident reporting. is limited by high costs, where only 12% of U.S. low-income adults (under $30,000 annually) adopt wearables compared to 30% overall, compounded by design flaws like conspicuous features that invite in vulnerable communities. In global supply chains, e-textile manufacturing inherits apparel sector issues, including forced labor risks affecting an estimated $161 billion in goods annually, often in outsourced facilities with poor working conditions and low wages. Regulatory frameworks aim to mitigate these impacts, with the EU's RoHS Directive restricting hazardous substances (e.g., lead, mercury) in electrical and electronic equipment, applicable to e-textiles as they qualify as EEE when containing circuits or sensors. Complementing this, the revised EU Waste Framework Directive (approved September 2025) imposes extended producer responsibility (EPR) on textile producers, mandating collection and recycling costs to foster circularity and equitable resource distribution by reducing waste disparities across income levels. These measures encourage sustainable design, though enforcement challenges persist in ensuring fair technology access globally. The integration of (AI) and (ML) into e-textiles is poised to enable in smart fabrics, such as real-time health monitoring and adaptive performance optimization, with prototypes demonstrated in 2024-2025 research focusing on data-driven personalization for wearables. IoT ecosystems are expanding e-textile capabilities by connecting fabrics to broader networks for seamless data exchange, exemplified by battery-free smart textiles that enhance in ambient IoT environments projected for widespread adoption by 2025. Printable electronics are advancing through techniques like direct writing and coaxial , allowing scalable fabrication of multifunctional patterns on textiles with improved conductivity and flexibility. Recent advances include biodegradable e-textile prototypes, such as system developed in 2025, which incorporates eco-friendly materials for transient wearables in healthcare applications that fully degrade without environmental harm. Nanomaterial enhancements, including carbon nanotubes and integrations, have boosted sensor efficiency and in e-textiles. The e-textiles market is forecasted to reach USD 37.34 billion by , growing at a (CAGR) of 42.2% from 2025, driven primarily by rising demand in healthcare for monitoring wearables and expanding applications in . Key drivers include technological convergence with IoT and AI, alongside regulatory pushes for sustainable innovations, positioning e-textiles for broader industrial integration. Ongoing research directions emphasize sustainable heterogeneous manufacturing, as seen in the EPSRC-funded SUSTAIN programme launched in 2025, which aims to develop recyclable e-textiles through multi-material fabrication techniques at the and . This approach integrates diverse conductive yarns and inks to enable scalable, eco-efficient production, addressing barriers to .

References

  1. https://www.sciencedirect.com/topics/engineering/electronic-textile
  2. https://pmc.ncbi.nlm.nih.gov/articles/PMC9416033/
  3. https://www.mdpi.com/2673-8392/1/1/13
  4. https://www.precedenceresearch.com/e-textiles-and-smart-clothing-market
  5. https://www.sciencedaily.com/releases/2025/01/250102162522.htm
  6. https://pubs.acs.org/doi/10.1021/acsnano.2c07723
  7. https://doi.org/10.3390/fib6020034
  8. https://doi.org/10.3390/s22166055
  9. https://www.ark-invest.com/articles/analyst-research/adidas-smart-shirt
  10. https://doi.org/10.1016/j.mtbio.2023.100565
  11. https://phys.org/news/2019-08-unraveling-history-science-ancient-metal.html
  12. https://www.sciencedirect.com/topics/chemistry/metallic-fiber
  13. https://www.mcny.org/story/vanderbilt-ball
  14. https://www.metmuseum.org/perspectives/gowns-and-mansions-dressing-up-women-influence-french-fashion
  15. https://www.mdpi.com/2079-6439/6/2/34
  16. https://airforcemuseum.co.nz/blog/electric-clothing/
  17. https://airandspace.si.edu/collection-objects/suit-flying-winter-electrically-heated-japanese-army-air-force/nasm_A19480009000
  18. https://www.nobelprize.org/prizes/chemistry/2000/summary/
  19. https://www.mining-technology.com/analyst-comment/smart-clothing-timeline/
  20. https://link.springer.com/article/10.1007/BF01418152
  21. http://cba.mit.edu/docs/papers/00.07.E-broidery.pdf
  22. https://dl.acm.org/doi/10.1145/1357054.1357123
  23. https://dl.acm.org/doi/10.1145/2858036.2858176
  24. https://cordis.europa.eu/project/id/026987
  25. https://news.mit.edu/2022/smart-textiles-sense-movement-0707
  26. https://www.media.mit.edu/projects/a-tailored-electronic-textile-conformable-suit/overview/
  27. https://research.gatech.edu/intelligent-textiles-physical-interactions
  28. https://mako.cc/academic/buechley_hill_DIS_10.pdf
  29. https://www.sciencedirect.com/science/article/pii/S2352484725004160
  30. https://pmc.ncbi.nlm.nih.gov/articles/PMC10030726/
  31. https://www.researchgate.net/publication/7595429_Electroactive_Polymer-Based_Devices_for_e-Textiles_in_Biomedicine
  32. https://www.mdpi.com/2076-0825/14/6/258
  33. https://www.nature.com/articles/s41528-021-00112-0
  34. https://pubs.acs.org/doi/10.1021/acsanm.5c00068
  35. https://www.mdpi.com/2076-0825/8/1/9
  36. https://pmc.ncbi.nlm.nih.gov/articles/PMC8585370/
  37. https://www.nature.com/articles/s41528-025-00398-4
  38. https://pmc.ncbi.nlm.nih.gov/articles/PMC9756210/
  39. https://www.sciencedirect.com/science/article/abs/pii/S2468606925001108
  40. https://www.mdpi.com/2079-4991/14/22/1856
  41. https://pmc.ncbi.nlm.nih.gov/articles/PMC8451651/
  42. https://www.sciencedirect.com/science/article/pii/S2589004222004448
  43. https://www.sciencedirect.com/science/article/pii/S2211285520311411
  44. https://www.sciencedirect.com/science/article/pii/S037877532031140X
  45. https://www.researchgate.net/publication/274088376_Thermoelectric_Fabrics_Toward_Power_Generating_Clothing
  46. https://www.mdpi.com/1424-8220/20/20/5938
  47. https://www.nature.com/articles/s41598-025-09966-0
  48. https://www.science.org/doi/10.1126/sciadv.adx2628
  49. https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/iet-map.2018.5435
  50. https://www.mdpi.com/2079-9292/12/7/1521
  51. https://www.sciencedirect.com/science/article/pii/S230718772400035X
  52. https://www.sciencedirect.com/science/article/pii/S1369702124002323
  53. https://www.mdpi.com/1424-8220/20/23/6910
  54. https://pubs.acs.org/doi/10.1021/acsomega.2c01834
  55. https://pmc.ncbi.nlm.nih.gov/articles/PMC9788045/
  56. https://www.nature.com/articles/s41528-025-00417-4
  57. https://www.nature.com/articles/s41528-025-00399-3
  58. https://8msolar.com/solar-textiles/
  59. https://link.springer.com/article/10.1007/s42247-025-01222-5
  60. https://www.mdpi.com/2673-7248/5/3/28
  61. https://pmc.ncbi.nlm.nih.gov/articles/PMC8434590/
  62. https://journals.sagepub.com/doi/10.1177/00405175251338152
  63. https://advanced.onlinelibrary.wiley.com/doi/10.1002/admt.202400844
  64. https://www.sciencedirect.com/science/article/pii/S259000642300025X
  65. https://pmc.ncbi.nlm.nih.gov/articles/PMC8700039/
  66. https://www.mdpi.com/2079-9292/11/1/99
  67. https://www.mdpi.com/2673-8023/4/4/33
  68. https://www.mdpi.com/1424-8220/25/3/676
  69. https://pmc.ncbi.nlm.nih.gov/articles/PMC9932217/
  70. https://doi.org/10.3390/s24041058
  71. https://spectrum.ieee.org/smart-clothing-could-soon-be-part-of-your-wardrobe
  72. https://e-textiles-network.com/thunderstorm-dress/
  73. https://www.mdpi.com/1424-8220/20/22/6691
  74. https://www.adafruit.com/product/659
  75. https://about.underarmour.com/en/stories/2024/01/celanese-and-under-armour-develop-innovative-new-neolast--fiber-.html
  76. https://dl.acm.org/doi/10.1145/3623509.3633374
  77. https://www.researchgate.net/publication/346311696_Smart_Textiles_for_Defence_Applications
  78. https://www.tandfonline.com/doi/full/10.1080/00405167.2025.2468595
  79. https://www.thomasnet.com/insights/u-s-army-mit-fiber-computer/
  80. https://idstch.com/technology/materials/military-smart-and-intelligent-textiles-improve-performance-of-soldiers-enhancing-their-mobility-survivability-and-connectivity/
  81. https://www.irjmets.com/uploadedfiles/paper/volume3/issue_4_april_2021/8868/1628083362.pdf
  82. https://aviationanddefensemarketreports.com/e-textiles-the-next-generation-of-military-clothing/
  83. https://www.mdpi.com/1424-8220/24/9/2919
  84. https://phys.org/news/2017-11-soft-e-textiles-advanced-soldiers-emergency.html
  85. https://www.thomasnet.com/insights/darpa-military-squid-inspired-camouflage-tech/
  86. https://interestingengineering.com/innovation/squid-skin-secrets-at-uc-irvine
  87. https://www.idtechex.com/en/research-article/the-e-textiles-journey-from-heated-clothing-to-monitoring-astronauts/30229
  88. https://www.tandfonline.com/doi/full/10.1080/15623599.2025.2504550
  89. https://www.tandfonline.com/doi/abs/10.1080/00405000.2023.2234237
  90. https://pubs.acs.org/doi/abs/10.1021/acssensors.4c00288
  91. https://www.safetyandhealthmagazine.com/articles/26751-smart-protective-clothing
  92. https://www.oilandgasiq.com/connected-worker/articles/four-examples-of-wearable-technology-in-oil-and-gas
  93. https://www.hazardexonthenet.net/article/176672/Oil-and-gas-industry-warming-up-to-wearable-tech.aspx
  94. https://www.researchgate.net/publication/286491846_Smart_textile-based_protective_system_for_firefighters
  95. https://pubs.acs.org/doi/10.1021/acsomega.3c03377
  96. https://www.nature.com/articles/s41598-020-65316-2
  97. https://pubs.acs.org/doi/10.1021/acsnano.3c06181
  98. https://link.springer.com/article/10.1007/s40820-022-01008-y
  99. https://journals.sagepub.com/doi/10.1177/0040517521996727
  100. https://pubs.acs.org/doi/10.1021/acsami.8b03079
  101. https://pmc.ncbi.nlm.nih.gov/articles/PMC9798870/
  102. https://www.researchgate.net/publication/227733221_Prospective_Impacts_of_Electronic_Textiles_on_Recycling_and_Disposal
  103. https://ised-isde.canada.ca/site/canadian-textiles-industry/sites/default/files/attachments/2012NanoTextiles_eng.pdf
  104. https://www.nature.com/articles/s41528-025-00448-x
  105. https://dl.acm.org/doi/fullHtml/10.1145/3544548.3580980
  106. https://news.northeastern.edu/2024/03/21/magazine/fashion-supply-chain-forced-labor/
  107. https://environment.ec.europa.eu/topics/waste-and-recycling/rohs-directive_en
  108. https://cms-lawnow.com/en/ealerts/2025/09/eu-parliament-approves-new-measures-on-textile-waste-what-manufacturers-retailers-and-e-commerce-sellers-need-to-know
  109. https://ijsred.com/volume8/issue3/IJSRED-V8I3P74.pdf
  110. https://iotbeat.com/blog/ambient-iot-smart-textiles-2025
  111. https://www.nature.com/articles/s41528-025-00414-7
  112. https://www.technologynetworks.com/applied-sciences/news/biodegradable-wearable-electronics-lead-to-greener-healthcare-394601
  113. https://pmc.ncbi.nlm.nih.gov/articles/PMC12341635/
  114. https://www.technavio.com/report/e-textile-market-industry-analysis
  115. https://www.prnewswire.com/news-releases/e-textile-market-to-grow-by-usd-26-33-billion-2024-2028-driven-by-demand-for-health-monitoring-wearables-ais-impact-on-market-trends---technavio-302241904.html
  116. https://www.linkedin.com/posts/e-textiles-network_sustain-is-an-epsrc-funded-programme-grant-activity-7388881262754615296-l6Oj
  117. https://onlinelibrary.wiley.com/doi/full/10.1002/admt.202400844
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