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Biomimetic scale-like polysaccharide-based highly-sensitive piezoresistive sensor with "shell-core" nanostructure.
- Source :
-
Chemical Engineering Journal . Nov2023, Vol. 476, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
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Abstract
- [Display omitted] • Electrospun polysaccharide-based nanofiber membrane with a 3D network structure. • Biomimetic scale-like "core-shell" nanostructured piezoresistive material. • A broadened conductive pathway by in-situ polymerization of PPy. • A broad pressure range (0.13–128.46 kPa) and a high sensitivity (52.42 kPa−1). • Huge potential applicability in remote monitoring. A nanofiber membrane is an ideal carrier for constructing a typical three-dimensional conductive network. Inspired by the biomimetic scale-like nanostructure, polysaccharide-based piezoresistive material with outstanding Joule heating performance, thermal efficiency, and high conductivity is developed, presenting a potential indicator material with the color shifting function for intelligent skin or soft robots in practical applications. The stable core-shell structure due to the in-situ polymerization of polypyrrole (PPy) on the electrospun nanofiber endows the piezoresistive sensor (s-PGG@PPy) with a broad pressure range (0.13–128.46 kPa), high sensitivity (52.42 kPa−1) and fast response time (26 ms). The free motion of π electrons along the nanofibers between carbon atoms perfectly made it an attractive candidate for real-time monitoring of human activities, including bending of fingers, wrist, knee, and facial expression. In addition, designing s-PGG@PPy is to be connected in parallel and composed of an indication function glove, which shows different brightness with finger pressure. Consequently, the reported piezoresistive sensor represents a potential for wearable bioelectronics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 476
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 173629825
- Full Text :
- https://doi.org/10.1016/j.cej.2023.146572