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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/).
The average diameters of EHDA products: (a) nanofibers E2; (b) the nanofibers of hybrids E3; (c) microparticles E1; (d) the microparticles of hybrids E3.