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. 2022 Dec 8;22(24):9632. doi: 10.3390/s22249632

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© 2022 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/).

PMC Copyright notice

The process of preparing MN-FTENG and the appearance of MN-FTENG in this experiment: (a) Microstructures were fabricated on the PMMA mold with a laser engraving machine, (b) PDMS was poured into PMMA mold, (c) air bubbles was evacuated from PDMS in a vacuum chamber, (d) Lay polyester and conductive cloth on PDMS, (e) let PDMS fully penetrate into fiber in the vacuum chamber, (f) after baking and demolding, MN-FTENG is formed, (g) the appearance of MN-FTENG and (h) MN-FTENG can still be used after bending 360 degrees.