Wearable electrochemical sensors for monitoring of inorganic ions and pH in sweat

Sweat is a metabolite of human body. Traditional sweat analysis often relies on large-scale instruments and equipment, thus limiting the timely and in-situ analysis of sweat and increasing the detection cost. Electrochemical sensors have the advantages of portable equipment, simple operation and high sensitivity. They are widely used in the fields of medical health and environmental monitoring. In recent years, the construction of wearable electrochemical sensors based on human body fluids including sweat has become a hot topic for scientific researchers. In this work, we reviewed the research progress of wearable electrochemical sensors for monitoring the change of inorganic ions and pH in sweat.