초록 |
Wearable devices are flexible or stretchable devices mounted on human skin for biomedical sensing and therapies. In the past, materials of the wearable devices were limited to inorganic metal films, patterned into wavy or serpentine structures to withstand under mechanical deformations. However, recently, intrinsically stretchable materials are emerging as a new alternative for soft bioelectronics. Hydrogels, porous polymeric networks containing a large amount of water, are compliant materials with tissue-level softness, suitable enough to intimately contact the rugged skin surface. In addition, many kinds of fillers can be easily incorporated into the hydrogel networks to endow certain kinds of functionalities, such as conductivity, drug delivery, degradability, adhesivitiy, and self-healability. Herein, we present many kinds of functional hydrogel devices for transcutaneous sensing and therapies. The devices are durable under damp conditions as well as mechanical deformations. |