journal article·2023-08-22

Deep-Learning Enabled Active Biomimetic Multifunctional Hydrogel Electronic Skin

Kai Tao, Jiahao Yu, Jiyuan Zhang, Aocheng Bao, Haowen Hu, Tao Ye, Qiongling Ding, Yaozheng Wang, Haobin Lin, Jin Wu, Honglong Chang, Haixia Zhang, Weizheng Yuan

ACS Nano· Volume 17· Issue 16
Publisher page

Abstract

There is huge demand for recreating human skin with the functions of epidermis and dermis for interactions with the physical world. Herein, a biomimetic, ultrasensitive, and multifunctional hydrogel-based electronic skin (BHES) was proposed. Its epidermis function was mimicked using poly(ethylene terephthalate) with nanoscale wrinkles, enabling accurate identification of materials through the capabilities to gain/lose electrons during contact electrification. Internal mechanoreceptor was mimicked by interdigital silver electrodes with stick-slip sensing capabilities to identify textures/roughness. The dermis function was mimicked by patterned microcone hydrogel, achieving pressure sensors with high sensitivity (17.32 mV/Pa), large pressure range (20-5000 Pa), low detection limit, and fast response (10 ms)/recovery time (17 ms). Assisted by deep learning, this BHES achieved high accuracy and minimized interference in identifying materials (95.00% for 10 materials) and textures (97.20% for four roughness cases). By integrating signal acquisition/processing circuits, a wearable drone control system was demonstrated with three-degree-of-freedom movement and enormous potentials for soft robots, self-powered human-machine interaction interfaces of digital twins.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Tactile and Sensory Interactions · Interactive and Immersive Displays

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China

Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Sanhang Science & Technology Building, No.45th, Gaoxin South ninth Road, Nanshan District, Shenzhen City 518063, China

State Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China

National Key Laboratory of Science and Technology on Micro/Nano Fabrication; Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing 100871, China

Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510641, China

Funding

Royal Society · Science and Technology Foundation of Shenzhen City · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Natural Science Foundation of Shaanxi Province

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