Wearable devices for sweat sensing are emerging classes of non-invasive diagnosis that can assess the functioning of the human body. Sweat is a non-invasive biofluid that contains a wide range of metabolites and ions, including glucose and cortisol. This collaborative project with the industry aims to develop wearable patches that can quantify important metabolites and ions in sweat like sodium, potassium, chloride, calcium, glucose, and lactate.