Simultaneous detection of tyrosine and uric acid in sweat using CoWO4@CNT with a hydrogel modified electrochemical biosensor

We achieve simultaneous detection of UA (LOD: 0.14 μM) and Tyr (LOD: 4.2 μM) by synthesizing CoWO 4 @CNT in a single step using a hydrothermal method. We also developed a PDA–PAM hydrogel with a sweat absorption rate of up to 226%.