Ruairi Barrett works on a project known as ‘SwEatch’, or the sweat watch. The sweat watch analyses the sodium content of its wearer’s sweat in real time. . The device incorporates many different aspects of chemistry and engineering such as electrochemistry, microfluidics, and 3D printing technologies.
There are a few different ways this device could be used. It could be used used as a primary indicator for Cystic Fibrosis, for example. Athletes could also use the device to monitor hydration during training. The device connects to a computer via Bluetooth and this enables it to give a live read out from the sweat of the wearer.
Sodium levels are important in the above examples as Cystic Fibrosis sufferers will have higher levels of sodium in their sweat and athletes will see severe drops in sodium levels when they become dehydrated. This can lead to hyponatremia.