Health
Soft materials can provide “wear and forget” health monitoring
Breathable, stretchable, and extremely soft ‘skin-like’ materials can be used to develop wearable bioelectronic devices that can be attached to the skin for health monitoring.
Cancer, diabetes, and heart disease are among the leading causes of disability and death in the United States. Long-term home health monitoring solutions can detect these chronic diseases early and lead to timely intervention.
This new material could pave the way for devices that track multiple vital signs, such as blood pressure, heart electrical activity, and skin hydration.
“Our overall goal is to help improve the long-term biocompatibility and long-term precision of wearable bioelectronics through innovation in this fundamental porous material with many new properties.” said Zheng Yan, assistant professor of chemical and biomedical engineering. Department of Mechanical and Aerospace Engineering, University of Missouri.
liquid metal elastomer compositeThe characteristic of the material is the softness like skin.
“It’s so soft and so stretchy that the user can’t mechanically feel the device on the human body,” says Yan. “You can’t feel it and you’ll probably forget. It can feel about 20 kilopascals or more of pressure when something is pulled against your skin, but this material is more than that.” because there is less pressure.”
Its integrated antibacterial and antiviral properties also help prevent harmful pathogens from forming on the skin surface beneath the device during prolonged use.
“We call this mechanical and electrical decoupling. So when the material is stretched, the change in electrical performance during human motion is insignificant, and the device is isolated from the human body with high quality biosignals can be recorded,” says Yan. .
While other researchers have worked on similar designs for liquid metal-elastomeric composites, Yan says the breathable “porous” material developed by a team at the University of Missouri has the ability to expand when the material is stretched. It says it has a new approach because it can prevent liquid metal from leaking. the human body moves.
This work builds on the team’s existing proof of concept, as demonstrated in previous work, including a cardiac monitor currently in development. In the future, Yan hopes that the biological data collected by the device will be wirelessly transmitted to a smartphone or similar electronic device so that it can be shared with medical professionals.
Research published in journals scientific progressthe National Science Foundation, the Office of Naval Research, the National Institute of General Medical Sciences, the National Institute of Arthritis and Musculoskeletal and Skin Diseases, and the Air Force Office of Scientific Research.
The content is solely the responsibility of the authors and does not necessarily represent the official views of the funding agencies.
sauce: University of Missouri
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