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. 2019 Feb 22;12(4):664. doi: 10.3390/ma12040664

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© 2019 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 (http://creativecommons.org/licenses/by/4.0/).

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Fiber images made with an optical microscope. Fibers obtained as a result of the addition of polyaniline (PANI): (a) after rinsing in water; (b) after rinsing in HCl; and (c) fibers obtained as a result of in situ synthesis of PANI.