Fig. 12: Hydrogel-based flexible electronics for human activities monitoring.
From: Hydrogel-based flexible materials for diabetes diagnosis, treatment, and management
a Synthesis of PDA@Ag NPs/CPHs and its application as both epidermal sensor and diabetic foot wound dressing simultaneously163. b Attachment of PDA@Ag NPs/CPHs to ankle joints of normal and diabetic mice on a 40 °C hot plate to monitor hydrogel sensors’ responses on the reflection movement of mice to thermal stimulus. c Motor reflection frequency during continuous thermal stimulation was recorded. It showed diabetic rats had a lower motor reflection frequency than normal rats. d–f PDA@Ag NPs/CPHs were adhered on a volunteer’s finger, elbow, knee joint, serving as strain sensors to detect motion of human body. g Resistance output from a hydrogel sensor for detecting vocal vibrations on throat164. h Movement recorded by liquid-metal-based cardiac patch inset on the surface of a beating heart of a rabbit. Reprinted with permission from refs. 163,164. Copyright 2019 John Wiley & Sons and 2019 John Wiley & Sons.
