Sweat Detectors? Tiny Sensors Use Perspiration to Track Health

What it is?

        A soft, skin‐mounted microfluidic device for capture, collection and analysis of sweat.
Sweat could be the next thing wearable devices sense to track your health, researchers say. A new microfluidic skin patch capable of collecting and analyse

Working Principle 

        Imagine if taking a snapshot of your health were as easy as slapping a sticker on you skin. A new study finds that a tiny adhesive sensor can read what's going on in your body based on your sweat, and relay information about your well-being wirelessly to asmartphone. This  type of wearable  

sensor could work as an alternative to blood tests to asses people's health one day, according to the researchers.

Application

The readings collected by the sweat sensor seemed comparable to the current lab-based standards during a trial involving nine volunteers doing indoor cycling. Health readings included sweat rate and sweat loss, pH (an indicator of hydration levels), and concentrations of lactate, glucose, and chloride.