American scientists have created a wearable microfluidic sensor is able to collect, store and analyze sweat even in the water. With the help of developed device the authors have identified the sweating and also the chloride content in sweat of athletes during the swimming and Cycling. The results of the tests, the authors published in Science Advances.
Chemical analysis of one sample of small volume can be expensive, time-consuming and requires highly trained personnel. So now actively being developed miniature devices and sensors that can quickly analyze small amounts. Technologies laboratory on chip (lab-on-a-chip) to successfully cope with this task. Moreover, such devices can be attached directly to the source of the analyte, which makes them suitable for non-invasive analysis.
For professional athletes, the important parameters are the release rate of moisture through the sweat and the content of electrolytes in it. If when practicing on land, to acquire a sample quite simple, in the case of the analysis of the sweat of swimmers, there are difficulties. American researcher Jonathan Reader (Jonathan T. Reeder) from northwestern University and his colleagues have proposed a solution to this problem. They created the first of its kind waterproof microfluidic chip that can collect, store and analyze the sweat of the athlete even in the water.