Epidermis‐Inspired Wearable Piezoresistive Pressure Sensors Using Reduced Graphene Oxide Self‐Wrapped Copper Nanowire Networks
Source abstract
Abstract
Abstract 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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Nanomaterials and Printing Technologies · Tactile and Sensory Interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Terasaki Institute for Biomedical Innovation Los Angeles CA 90064 USA
Department of Bioengineering University of California Los Angeles CA 90095 USA
Department of Chemical and Environmental Engineering Bourns College of Engineering University of California Riverside CA 92521 USA
Department of Electric and Electronic Engineering Technological Institute of Merida Merida Yucatan 97118 Mexico
Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
Department of Biological Systems Engineering, Virginia Tech Blacksburg VA 24061 USA
Department of Chemistry and Biochemistry Department of Materials Science and Engineering and California NanoSystems Institute University of California Los Angeles CA 90095 USA
Materials Science and Engineering Program Bourns College of Engineering University of California Riverside CA 92521 USA
Funding
National Institutes of Health · National Science Foundation
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