A negative-response strain sensor towards wearable microclimate changes for body area sensing networks
Jing Liu, Junze Zhang, Zeyu Zhao, Yanping Liu, Wai Cheong Tam, Zekun Liu, Gang Li
Wearables and strain sensors have attracted much attention for applications in monitoring human motions and health. However, state-of-the-art sensors lack sensing reliability in changing temperature and humidity conditions. In this study, we design and fabricate a robust strain sensor using silk/polyurethane composite yarns. The silk is modified using graphene with the assistance of 3-glycidyloxypropyl trimethoxy silane as coupling agent. The sensor is durable and has fast response speed, stable sensing capability, and a robust resistance response towards strain deformation. More importantly, the sensor performance will not be affected by changing temperature and humidity in typical use conditions. The sensor is used to further develop a real-time body sensing network. Results from this study show that the fabricated strain sensor has huge potential for future personalized healthcare and public health management.
, Zhang, J.
, Zhao, Z.
, Liu, Y.
, Tam, W.
, Liu, Z.
and Li, G.
A negative-response strain sensor towards wearable microclimate changes for body area sensing networks, Chemical Engineering Journal, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935969
(Accessed October 4, 2023)