Sensors Woven Into a Shirt Can Monitor Vital Signs
April 23, 2020 | MIT News OfficeEstimated reading time: 3 minutes
MIT researchers have developed a way to incorporate electronic sensors into stretchy fabrics, allowing them to create shirts or other garments that could be used to monitor vital signs such as temperature, respiration, and heart rate.
The sensor-embedded garments, which are machine washable, can be customized to fit close to the body of the person wearing them. The researchers envision that this type of sensing could be used for monitoring people who are ill, either at home or in the hospital, as well as athletes or astronauts.
“We can have any commercially available electronic parts or custom lab-made electronics embedded within the textiles that we wear every day, creating conformable garments,” says Canan Dagdeviren, the LG Electronics Career Development Assistant Professor of Media Arts and Sciences at MIT. “These are customizable, so we can make garments for anyone who needs to have some physical data from their body like temperature, respiration rate, and so forth.”
Dagdeviren is the senior author of a paper describing the new material today in the journal npg Flexible Electronics. MIT graduate student Irmandy Wicaksono is the lead author of the study. Several MIT undergraduates also contributed to the study through the Undergraduate Research Opportunities Program.
Embedded sensors
Other research groups have developed thin, skin-like patches that can measure temperature and other vital signs, but these are delicate and must be taped to the skin. Dagdeviren’s lab set out to create garments more similar to the clothes we normally wear, using a stretchy fabric that has removable electronic sensors incorporated into it.
“In our case, the textile is not electrically functional. It’s just a passive element of our garment so that you can wear the devices comfortably and conformably during your daily activities,” Dagdeviren says. “Our main goal was to measure the physical activity of the body in terms of temperature, respiration, acceleration, all from the same body part, without requiring any fixture or any tape.”
The electronic sensors consist of long, flexible strips that are encased in epoxy and then woven into narrow channels in the fabric. These channels have small openings that allow the sensors to be exposed to the skin. For this study, the researchers designed a prototype shirt with 30 temperature sensors and an accelerometer that can measure the wearer’s movement, heart rate, and breathing rate. The garment can then transmit this data wirelessly to a smartphone.
The researchers chose their fabric — a polyester blend — for its moisture-wicking properties and its ability to conform to the skin, similar to compression shirts worn during exercise. Last summer, several of the researchers spent time at a factory in Shenzhen, China, to experiment with mass-producing the material used for the garments.
“From the outside it looks like a normal T-shirt, but from the inside, you can see the electronic parts which are touching your skin,” Dagdeviren says. “It compresses on your body, and the active parts of the sensors are exposed to the skin.”
The garments can be washed with the sensors embedded in them, and the sensors can also be removed and transferred to a different garment.
Remote monitoring
The researchers tested their prototype shirts as wearers exercised at the gym, allowing them to monitor changes in temperature, heart rate, and breathing rate. Because the sensors cover a large surface area of the body, the researchers can observe temperature changes in different parts of the body, and how those changes correlate with each other.
The shirts can be easily manufactured in different sizes to fit an array of ages and body types, Dagdeviren says. She plans to begin developing other types of garments, such as pants, and is working on incorporating additional sensors for monitoring blood oxygen levels and other indicators of health.
This kind of sensing could be useful for personalized telemedicine, allowing doctors to remotely monitor patients while patients remain at home, Dagdeviren says, or to monitor astronauts’ health while they’re in space.
“You don’t need to go to the doctor or do a video call,” Dagdeviren says. “Through this kind of data collection, I think doctors can make better assessments and help their patients in a better way.”
The research was funded by the MIT Media Lab Consortium and a NASA Translational Research Institute for Space Health Seed Grant from the MIT Media Lab Space Exploration Initiative.
Suggested Items
IPC Bestows Posthumous Hall of Fame Award to Industry Icon Michael Ford
04/18/2024 | IPCIPC honored the late Michael Ford, Aegis Software, for his extraordinary contributions to the global electronics manufacturing industry with the IPC Raymond E. Pritchard Hall of Fame Award at IPC APEX EXPO 2024. IPC’s most prestigious honor, the Hall of Fame Award is given to individuals who have provided exceptional service and advancement to IPC and the electronics industry. Ford, an industry leader and valued IPC volunteer, died suddenly in January 2024.
SEMI Applauds U.S. Chips Act Award for Samsung Electronics Facilities to Strengthen Domestic Semiconductor Supply Chain
04/17/2024 | SEMISEMI, the industry association serving the global electronics design and manufacturing supply chain, applauded the United States Department of Commerce’s announcement of a Preliminary Memorandum of Terms for an award under the CHIPS and Science Act to support the expansion of Samsung Electronics’ presence in Texas and the company’s development and production of leading-edge chips.
Northrop Grumman honors Calumet Electronics with Supplier Excellence Award
04/17/2024 | Calumet ElectronicsNorthrop Grumman Corporation has recognized Calumet Electronics during the company’s 2024 Supplier Excellence Awards for “exceptional performance and unwavering commitment to delivering with excellence.” Calumet is one of 70 suppliers recognized from across the globe. In its award category of “Supplier Strategic Excellence,” Calumet was honored alongside global corporations such as Amazon Web Services, Dell Technologies, and Eaton Corporation.
Ark Electronics Expands Global Manufacturing Factory Network in North America and Europe
04/17/2024 | PRNewswireElectronic Manufacturing Company Ark Electronics recently announced the expansion of its Global Factory Network with the addition of Electronics Manufacturing Service (EMS) capabilities in Mexico and Europe.
Signal Integrity Expert Donald Telian to Teach 'Signal Integrity, In Practice' Masterclass Globally
04/17/2024 | PRLOGDonald Telian and The EEcosystem announce the global tour of "Signal Integrity, In Practice," a groundbreaking LIVE masterclass designed to equip hardware engineers with essential skills for solving Signal Integrity (SI) challenges in today's fast-paced technological landscape.