Flexible strain sensors based on silver nanowires and UV-curable acrylate elastomers for wrist movement monitoring

Flexible strain sensors have a wide range of electronic skin and health monitoring applications. In this paper, flexible strain sensors with unique direction designs were prepared using silver nanowires (AgNWs) and UV-curable acrylate elastomer films. They show an extensive strain range (tensile strain >50%), sensitivity up to 97 of gauge factor, and good reproducibility of up to 10% strain under cyclic tensile tests. The parallel and perpendicular placement of the sensors to strain direction allows us to detect wrist movement in a 360-degree direction with high accuracy.