Journal
ADVANCED SCIENCE
Volume 9, Issue 22, Pages -Publisher
WILEY
DOI: 10.1002/advs.202201507
Keywords
borophene; medical assistive; nanocomposite; triboelectricity; wound healing
Categories
Funding
- Ministry of Science and Technology, Taiwan [108-2636-E-038-003, 109-2636-E-008-010, 110-2636E-008-009]
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A novel borophene/eco flex nanocomposite has been developed for making fabric-based triboelectric materials for healthcare electronics. This material offers flexibility, durability, and mechanical stability, suitable for mechanical energy harvesting and medical assistive systems.
Smart fabrics that can harvest ambient energy and provide diverse sensing functionality via triboelectric effects have evoked great interest for next-generation healthcare electronics. Herein, a novel borophene/ecoflex nanocomposite is developed as a promising triboelectric material with tailorability, durability, mechanical stability, and flexibility. The addition of borophene nanosheets enables the borophene/ecoflex nanocomposite to exhibit tunable surface triboelectricity investigated by Kelvin probe force microscopy. The borophene/ecoflex nanocomposite is further fabricated into a fabric-based triboelectric nanogenerator (B-TENG) for mechanical energy harvesting, medical assistive system, and wound healing applications. The durability of B-TENG provides consistent output performance even after severe deformation treatments, such as folding, stretching, twisting, and washing procedures. Moreover, the B-TENG is integrated into a smart keyboard configuration combined with a robotic system to perform an upper-limb medical assistive interface. Furthermore, the B-TENG is also applied as an active gait phase sensing system for instantaneous lower-limb gait phase visualization. Most importantly, the B-TENG can be regarded as a self-powered in vitro electrical stimulation device to conduct continuous wound monitoring and therapy. The as-designed B-TENG not only demonstrates great potential for multifunctional self-powered healthcare sensors, but also for the promising advancements toward wearable medical assistive and therapeutic systems.
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