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. 2021 Apr 9;11(4):957. doi: 10.3390/nano11040957

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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) Picture of sandwich electrospun PAN:PVP:PAN film, (b) EDS result of the sandwich urushiol/PAN:PEDOT:PSS/PVP:urushiol/PAN film, (c) picture of the urushiol/PAN:PEDOT: PSS/PVP:urushiol/PAN film immersed in the 80% sulfuric acid solution for 30 min, (d) picture of the urushiol/PAN:PEDOT:PSS/PVP:urushiol/PAN film immersed in the 100% sulfuric acid solution for 30 min.