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. 2021 Aug 16;10(8):990. doi: 10.3390/antibiotics10080990

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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) Schematic forming model of nanofibres adapted from [136]. (B) Different bioactivities of nanofibres. (C) Schematic model of microspheres. (D) Drug-releasing models of microspheres ((a) diffusion, (b) dissolution, (c) surface erosion, (d) overall erosion) adapted from [147].