Electrochemically active materials and wearable biosensors for the in situ analysis of body fluids for human healthcare
Heun Park, Woohyun Park, Chi Hwan Lee
Abstract
Abstract The increasing demand for minimal to noninvasive in situ analysis of body fluids, such as sweat, interstitial fluid, and tears, has driven rapid development of electrochemically active materials and wearable biosensors. The mechanically soft and deformable nature of these biosensors enables them to efficiently adapt to the geometric nonlinearity of a specific part of the human body. The integration of these biosensors with a fully miniaturized wireless telemetry system enables displaying real-time data in a mobile device and/or reporting to an encrypted server for post analysis. These features are essential for the long-term, unobtrusive monitoring of biochemical activity in ambulatory care settings for improved management of many chronic diseases, such as diabetes, gout, and Parkinson’s disease. Herein, we present the latest innovations of wearable electrochemical sensors tailored for human skin or eyes with a focus on their materials, designs, sensing mechanisms, and clinical implications.