stress sensing epidermal sensor -Rogers Group

developed a multifunctional skin-mounted microfluidic device that is able to measure stress in people in multiple ways.

prior teams have developed skin-adhesive devices that that collect sweat samples. The tiny samples contain small amounts of cortisol, a hormone that can be used as a marker of stress levels. In this new effort, the researchers have improved on these devices by developing one that measures more than just cortisol levels and is much more comfortable.

In addition to cortisol, their device is able to measure glucose and vitamin C levels. They also added electrodes underneath that are able to measure sweat rate and electrical conductivity of the skin, both of which change in response to stress. They also added a wireless transmitter that sends all of the data to a nearby smartphone running the device's associated app.

cortisol은 전자  센서가 아니라, LFA로 했다. 왜 이렇게 했을까 궁금하긴하다.

 

reference

Sungbong Kim et al. Soft, skin-interfaced microfluidic systems with integrated immunoassays, fluorometric sensors, and impedance measurement capabilities, Proceedings of the National Academy of Sciences (2020). DOI: 10.1073/pnas.2012700117