Sweat sensor

We've heard about a number of experimental skin-worn biosensors, which analyze the wearer's sweat to monitor everything from stress to blood glucose. Well, athletes can now buy one of the things, that is designed to keep them from getting dehydrated.

A new type of wearable leverages the surprisingly large sweat output of the fingertips to generate electricity when the user is sedentary or even sleeping, providing a potentially round-the-clock source of power.

Scientists have developed a patch designed to continuously monitor stress levels over the course of the day, which they hope will make it easier to spot signs of stress-related disease caused by disruptions to natural hormonal cycles.

Sweat is important for keeping us cool, but too much of it isn’t very pleasant either. Now, researchers at NUS have developed a new film that can quickly absorb sweat – and better still, potentially use the moisture to power wearable electronics.

Scientists at Binghamton University have made a breakthrough that could make wearable biosensors more comfortable to wear and the signals they produce a lot clearer, showing off a new type of porous silicone that allows for the evaporation of sweat.

Scientists at UCLA have developed a new type of double-sided, disposable film that can measure key chemicals in sweat, converting those chemical signals into electrical signals so the data can be displayed on a smartwatch.

A new health tracker produced at North Carolina State University is an interesting glimpse of what the future of wearable tech could look like, packing an aray of health-tracking functionality into a familiar form you can wear on your wrist.