A biomimetic multifunctional electronic hair sensor

Liu, Ya-Feng and Huang, Pei and Li, Yuan-Qing and Liu, Qun and Tao, Jiang-Ke and Xiong, De-Jian and Hu, Ning and Yan, Cheng and Wang, Hao and Fu, Shao-Yun (2018) A biomimetic multifunctional electronic hair sensor. Journal of Materials Chemistry A, 7 (4). 1889 - 1896. ISSN 2050-7488


Abstract

A high performance electronic hair (EH) sensor with multiple responsibilities is fabricated via fully mimicking the sensory hair cell structure and properties of human skin. The designed EH sensor consists of nylon fibers as hairs for mechanical signal amplification and polydimethylsiloxane (PDMS) resin as the human skin for sensor encapsulation. Two carbonized papers are used as piezo-resistive mechanoreceptors (M1 and M2). The nylon fibers used have a diameter and Young's modulus close to those of hairs and PDMS has a Young's modulus close to that of human skin. The structure of human hairs is verified to be optimal for maximizing the sensing ability, and the structure of the EH sensor is then optimized in terms of the structure of human hairs. Unlike conventional single-mode EH sensors, the EH sensor obtained by fully mimicking human skin is capable of detecting multiple signals of pressure, surface roughness, the airflow rate, etc. just like human skin. Moreover, the EH sensor is also effective in identifying the airflow direction. Because of its simple structure, low cost, good flexibility and multiple functionalities, the EH sensor is expected to find widespread application in e-skins, wearable devices, robotics, human machine interfaces, etc.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 04 Mar 2022 02:34
Last Modified: 28 Apr 2022 03:54
Uncontrolled Keywords: Human Machine Interface; Mechanical signals; Polydimethylsiloxane PDMS; Sensing abilities; Sensor encapsulation; Sensory hair cells; Simple structures; Wearable devices
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Identification Number or DOI: https://doi.org/10.1039/c8ta10750e
URI: http://eprints.usq.edu.au/id/eprint/46341

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