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. 2021 Dec 22;22(1):50. doi: 10.3390/s22010050

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Tactile sensor made from dielectric rose petal layer between two leaf electrodes [69]. (b) A proposed sensor utilizing fiberglass mesh [72]. (c) Pyramid microstructure PDMS films for piezocapacitance [73]. (d) Biomimetic e-skins with interlocked microstructure [76].