Epidermis-Inspired Wearable Piezoresistive Pressure Sensors Using Reduced Graphene Oxide Self-Wrapped Copper Nanowire Networks.

Autor: Zhu Y; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Hartel MC; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.; Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA., Yu N; Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, CA, 92521, USA., Garrido PR; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.; Department of Electric and Electronic Engineering, Technological Institute of Merida, Merida, Yucatan, 97118, Mexico., Kim S; Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, CA, 92521, USA., Lee J; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.; Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea., Bandaru P; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Guan S; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Lin H; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.; Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA., Emaminejad S; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.; Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA., de Barros NR; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Ahadian S; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Kim HJ; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Sun W; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.; Department of Biological Systems, Engineering, Virginia Tech, Blacksburg, VA, 24061, USA., Jucaud V; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Dokmeci MR; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA., Weiss PS; Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA.; Department of Chemistry and Biochemistry, Department of Materials Science and Engineering and California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA., Yan R; Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, CA, 92521, USA.; Materials Science and Engineering Program, Bourns College of Engineering, University of California, Riverside, CA, 92521, USA., Khademhosseini A; Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90064, USA.
Jazyk: angličtina
Zdroj: Small methods [Small Methods] 2022 Jan; Vol. 6 (1), pp. e2100900. Date of Electronic Publication: 2021 Dec 15.
DOI: 10.1002/smtd.202100900
Abstrakt: Wearable piezoresistive sensors are being developed as electronic skins (E-skin) for broad applications in human physiological monitoring and soft robotics. Tactile sensors with sufficient sensitivities, durability, and large dynamic ranges are required to replicate this critical component of the somatosensory system. Multiple micro/nanostructures, materials, and sensing modalities have been reported to address this need. However, a trade-off arises between device performance and device complexity. Inspired by the microstructure of the spinosum at the dermo epidermal junction in skin, a low-cost, scalable, and high-performance piezoresistive sensor is developed with high sensitivity (0.144 kPa -1 ), extensive sensing range ( 0.1-15 kPa), fast response time (less than 150 ms), and excellent long-term stability (over 1000 cycles). Furthermore, the piezoresistive functionality of the device is realized via a flexible transparent electrode (FTE) using a highly stable reduced graphene oxide self-wrapped copper nanowire network. The developed nanowire-based spinosum microstructured FTEs are amenable to wearable electronics applications.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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