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. 2021 Feb 2;22(3):1499. doi: 10.3390/ijms22031499

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

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SF-based scaffolds with different representative structures: (A) Film; (B) Mat; (C) artificial fiber; (D) Hydrogel; (E) Sponge; (F) 3D structure design and printed scaffold; (G) Inkjet-printed silk pattern. Reprinted with permission from [33,97,98,99,100,101,102].