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Published in: Polymer Bulletin 7/2020

22-01-2020 | Original Paper

Fabrication of nanofibers using fibroin regenerated by recycling waste silk selvage

Authors: Hoik Lee, Seon Ju Park, Mi-eun Lee, Kang-min Choi, Hyeong Yeol Choi, Yohei Hasegawa, Myungwoong Kim, Kyu Beom Kim

Published in: Polymer Bulletin | Issue 7/2020

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Abstract

An effective process of recycling silk selvage to fabricate fibroin-containing nanofibers was demonstrated. Sericin and fibroin were extracted from the silk waste, and fibroin was successfully separated from the mixture. Thus, the proposed process of regeneration of useful components from silk selvage waste was effective and beneficial. We further investigated the use of the regenerated fibroin to fabricate highly functional nanofibers via electrospinning. The electrospinning solvent systems and processing conditions, such as voltage, tip-to-collector distance, and flow rate, were intensively studied. The selection of proper solvent was important to control the morphology and quality of the resultant nanofibers. Fibroin nanofibers fabricated using formic acid exhibited highly controlled uniformity. Additionally, composite PVA/fibroin nanofibers were successfully fabricated from the regenerated fibroin. Our studies highlight the potential of silk selvage, which is not a waste product but a valuable material, and it can be recycled via the proposed process to yield functional nanofiber materials suitable for cutting-edge nano/biotechnological applications owing to their biocompatibility.

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Literature
Metadata
Title
Fabrication of nanofibers using fibroin regenerated by recycling waste silk selvage
Authors
Hoik Lee
Seon Ju Park
Mi-eun Lee
Kang-min Choi
Hyeong Yeol Choi
Yohei Hasegawa
Myungwoong Kim
Kyu Beom Kim
Publication date
22-01-2020
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 7/2020
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-020-03113-7

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