Shape‐Programmable Lamellar Aerogel Enabling 3D Wireless Point‐of‐Care Electronics for Assistance in Pressure Injury Prevention

Abstract Bedridden patients are at high‐pressure injuries risk, and timely turning or moving a bedridden patient is crucial to release localized pressure and reduce pressure injury risk. Pressure‐sensing electronics can collect real‐time pressure signals reflecting the movement of a patient and help carers evaluate pressure injury risk early and intervene timely. However, most pressure‐sensing electronics cannot be seamlessly mounted on the curved surface of the skin, resulting in signal instability and inaccuracy. Besides, detecting small pressures over a wide range is challenging. Herein, a lamellar shape‐memory conductive (LSMC) aerogel is developed to assemble 3D wireless point‐of‐care electronics for assisting pressure injury prevention. The lamellar structure makes the LSMC aerogel highly compressible, endowing the assembled electronics with high sensitivity and low detection limit. Moreover, the excellent shape‐memory effect allows the fabrication of 3D electronics on certain curved surfaces for adaptive wearing and provides sensitive and stable signals. Furthermore, a point‐of‐care monitoring system that integrates the LSMC aerogel‐based 3D electronics with wireless technology is developed. The system records real‐time pressure signals at certain locations (e.g., foot), which facilitates carers to analyze an individual's bedridden time and body movements, assess pressure injury risk, and intervene timely; this greatly benefits pressure injury prevention.