Scientists have created a wearable sensor for monitoring health and air pollution

Scientists have created a wearable sensor for monitoring health and air pollution

Researchers have developed a highly sensitive sensor that allows you to monitor health conditions using a smartphone and determine the presence of harmful chemicals in the environment.

To create a sensor device, scientists used a nanomaterial of reduced graphene oxide and molybdenum disulfide, on which, using a laser, they formed furrows with pores to detect various gases, biomolecules and chemicals.

Silver-coated wavy lines were created on its insensitive part, which allow the sensor to stretch without damage and work like springs..

As electricity passes through the silver cells, the sensitive area is locally heated due to the significantly higher resistance, and the built-in electrodes begin to transmit signals from the pores..

Since it is very difficult to connect wires to the nanomaterial, the information is read and processed using a mobile phone..

Going forward, the team plans to increase the density of the arrays so that the device can respond to hundreds of substances and their combinations using an AI-powered application..

Researchers  from Pennsylvania State University and Northeastern University expect their development to interest the military and medical device manufacturers.

Scientists are developing more and more new devices that allow you to track health status. A device has recently been created that allows you to obtain images of what is happening inside living cells in real time..

text: Ilya Bauer, photo: Pennsylvania State University