A 10-micrometer-thick nanomesh-reinforced gas-permeable hydrogel skin sensor for long-term electrophysiological monitoring.
Zongman ZhangJiawei YangHaoyang WangChunya WangYuheng GuYumiao XuSunghoon LeeTomoyuki YokotaHossam HaickTakao SomeyaYan WangPublished in: Science advances (2024)
Hydrogel-enabled skin bioelectronics that can continuously monitor health for extended periods is crucial for early disease detection and treatment. However, it is challenging to engineer ultrathin gas-permeable hydrogel sensors that can self-adhere to the human skin for long-term daily use (>1 week). Here, we present a ~10-micrometer-thick polyurethane nanomesh-reinforced gas-permeable hydrogel sensor that can self-adhere to the human skin for continuous and high-quality electrophysiological monitoring for 8 days under daily life conditions. This research involves two key steps: (i) material design by gelatin-based thermal-dependent phase change hydrogels and (ii) robust thinness geometry achieved through nanomesh reinforcement. The resulting ultrathin hydrogels exhibit a thickness of ~10 micrometers with superior mechanical robustness, high skin adhesion, gas permeability, and anti-drying performance. To highlight the potential applications in early disease detection and treatment that leverage the collective features, we demonstrate the use of ultrathin gas-permeable hydrogels for long-term, continuous high-precision electrophysiological monitoring under daily life conditions up to 8 days.
Keyphrases
- tissue engineering
- wound healing
- hyaluronic acid
- drug delivery
- room temperature
- physical activity
- carbon dioxide
- soft tissue
- public health
- high efficiency
- endothelial cells
- extracellular matrix
- healthcare
- escherichia coli
- biofilm formation
- human health
- study protocol
- risk assessment
- randomized controlled trial
- candida albicans
- cystic fibrosis
- health promotion
- real time pcr