MIT Breakthrough: Stretchy, Machine‑Washable Garments Embedded with Sensors for Real‑Time Vital‑Sign Monitoring

MIT researchers have pioneered a method to weave sensors directly into stretchable fabrics, creating garments that continuously monitor vital signs such as temperature, respiration, and heart rate while remaining fully machine‑washable.

These smart, form‑fitting garments can be deployed for remote patient monitoring—from home care to hospital settings—as well as for tracking athletes’ performance. They also support telemedicine, a critical need during the COVID‑19 pandemic where clinicians increasingly consult patients virtually.

"We can embed any commercially available electronic component—or custom lab‑made circuitry—into everyday textiles, producing conformable garments," said Canan Dagdeviren, assistant professor of Media Arts and Sciences at MIT. "The system is fully customizable, allowing us to tailor clothing for anyone who requires continuous physiological data such as temperature or respiratory rate."

The technology relies on compression contact: sensors press against the skin, yet the entire garment—including the embedded electronics—remains washable. The team’s research, published in Nature, demonstrates that the textile platform can be customized in form, size, and function using standard high‑throughput textile manufacturing and garment‑patterning techniques.

Dubbed the Stretchable Electronic Textile Conformable Suit (E‑TeCS), the design mimics a compression shirt, achieving skin contact with a gentle 25 mmHg pressure that enhances comfort and sensor accuracy.

The suit is built from a custom‑woven fabric that houses flexible, stretchable electronic strips. These strips, which include sensor ICs and interconnects, are fabricated on two‑layer industrial flexible PCBs and then encapsulated with thermoplastic polyurethane (TPU TE‑11C, DuPont) and a washable encapsulant (PE773, DuPont).

E‑TeCS delivers remarkable precision: skin temperature to ±0.1 °C with a resolution of 0.01 °C, and heart‑rate and respiration sensing with a precision of 0.0012 m/s² thanks to mechano‑acoustic inertial detection.

The knit electronics can stretch up to 30 % over 1,000 cycles without significant loss of mechanical or electrical performance.

Integrating electronics into textiles offers enhanced mobility and comfort for users, according to the researchers. Existing solutions are often limited to single‑parameter sensing or lack scalability and stretchability for skin‑contact applications.

MIT’s approach combines thin, customizable electronic devices—including off‑the‑shelf ICs and interconnects—with plastic substrates that can be woven into knitted fabrics using high‑throughput manufacturing. The result is a compression‑style garment that ensures reliable skin contact.

To prove manufacturability, the team produced seven modules: four temperature‑sensing, one inertial‑sensing, and two interconnection modules. They incorporated 66 temperature sensors and 20 interconnect strips on a 25 × 27.5 cm flexible PCB (KingCredie).

The sensor network architecture connects each sensor horizontally via interconnects, channeling signals to an external layer that houses a Bluetooth Low Energy (BLE) module, a microprocessor, and a power source.

Demonstrating scalability, the researchers fabricated a prototype shirt that showcases roll‑to‑roll production of sensor‑embedded fabrics. These fabrics can be cut, joined, and tailored to suit diverse applications.

Future work includes developing additional garment types—such as pants—and integrating sensors for other health indicators like blood oxygen saturation.

For a visual overview, watch the researchers’ video below.

>> An earlier version of this article was originally published on our sister site, Electronic Products.