期刊
ADVANCED FUNCTIONAL MATERIALS
卷 32, 期 25, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202200444
关键词
adhesives; bioelectronics; health monitoring; liquid metals; treatment
类别
资金
- Shenzhen Science and Technology Program [KQTD20190929172743294]
- National Natural Science Foundation of China [21535001, 81730051, 32071390, 12072082, 12125202]
- National Key R&D Program of China [2018YFA0902600]
- Chinese Academy of Sciences [QYZDJ-SSW-SLH039, 121D11KYSB20170026]
- Shenzhen Bay Laboratory [SZBL2019062801004]
- Shenzhen Key Laboratory of Smart Healthcare Engineering [ZDSYS20200811144003009]
- Guangdong Innovative and Entrepreneurial Research Team Program [2019ZT08Y191]
- GBA Research Innovation Institute for Nanotechnology [2020GN0110]
- Tencent Foundation
The study presents a facile method for encapsulating metal-polymer conductors as epidermal electronics, using a adhesive made with polyethylene glycol and polydimethylsiloxane. The resulting electronics are soft and adhesive, capable of conformally adhering to the skin for more than 2 days even after sports and showers. The study demonstrates their potential for motion detection, electrophysiological signal detection, and skin wound healing.
Wearable electronics are increasingly used in health monitoring and treatment in different conditions. However, few devices can adhere conformally to the skin after sports and showers (sweating, deformation, friction). Here, a facile method is presented by providing a metal-polymer conductor (MPC) made with polyethylene glycol (PEG) blended polydimethylsiloxane (PDMS) based adhesive (PPA) that encapsulates gallium-based liquid metal alloy circuits as epidermal electronics. Adding PEG into PDMS prepolymer can result in a softer and wet-adhesive elastomer that can bear larger deformation than PDMS itself. The soft and adhesive electronics can adhere to the skin conformally for more than 2 d. It has been demonstrated that these electronics can meet the needs of motion detection, electrophysiological signal detection and skin wound healing during a 48 h wearing with sports and shower. It is expected that the wet-adhesive electronic with excellent biosafety can be widely used and solve existing problems in medical adhesives and human-machine interfaces.
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