A Penn State -led team of researchers has literally put pencil to paper to create an accessible, affordable, waterproof and wearable sensor to monitor multiple vital signs. The team published the details of the pencil-on-paper sensor in Chemical Engineering Journal . The research was supported in part by two grants from the U.S. National Science Foundation. The team had previously designed a pencil-on-paper sensor that could be used in "smart diapers" to detect wetness. That sensor, however, was not hydrophobic, so while it was useful in detecting moisture, it could not be used to accurately monitor other health variables where moisture might interfere with the sensing and the results.

https://www.miragenews.com/affordable-waterproof-sensors-to-revolutionize-1050846/

#miragenews