Artificial multimodal receptors based on ion relaxation dynamics.

Science
Insang YouUnyong Jeong

Abstract

Human skin has different types of tactile receptors that can distinguish various mechanical stimuli from temperature. We present a deformable artificial multimodal ionic receptor that can differentiate thermal and mechanical information without signal interference. Two variables are derived from the analysis of the ion relaxation dynamics: the charge relaxation time as a strain-insensitive intrinsic variable to measure absolute temperature and the normalized capacitance as a temperature-insensitive extrinsic variable to measure strain. The artificial receptor with a simple electrode-electrolyte-electrode structure simultaneously detects temperature and strain by measuring the variables at only two measurement frequencies. The human skin-like multimodal receptor array, called multimodal ion-electronic skin (IEM-skin), provides real-time force directions and strain profiles in various tactile motions (shear, pinch, spread, torsion, and so on).

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Citations

Feb 4, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Zetong ChenFang Yi
Feb 17, 2021·ACS Applied Materials & Interfaces·Xue-Feng ZhaoHong-Liang Lu
Nov 21, 2020·Science·Xinyu Liu
Apr 27, 2021·ACS Applied Materials & Interfaces·Xinyue TangJun Yang
Apr 27, 2021·Advanced Science·Dong Wook KimUnyong Jeong
Jun 2, 2021·Advanced Materials·Jong Ik LeeMoon Sung Kang
Aug 7, 2021·Nature Communications·Pang ZhuChuan Fei Guo
Aug 28, 2021·Science·Dongjun JungDae-Hyeong Kim
Jan 7, 2021·ACS Applied Materials & Interfaces·Zixuan WuJin Wu
Sep 15, 2021·ACS Applied Materials & Interfaces·Xue-Feng ZhaoHong-Liang Lu
Sep 11, 2021·Macromolecular Rapid Communications·Huijing LiTao Chen
Sep 21, 2021·Materials Horizons·Zihan HeDaoben Zhu

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