THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Zhi Liu

,

Yuqin Wan

,

Hao Dou

,

Ji-Huan He

EFFECT OF NA2CO3 DEGUMMING CONCENTRATION ON LIBR-FORMIC ACID-SILK FIBROIN SOLUTION PROPERTIES

ABSTRACT
Salt-acid system has been proved to be of high efficiency for silk fibroin dissolution. Using salt-acid system to dissolve silk, native silk fibrils can be preserved in the regenerated solution. Increasing experiments indicate that acquirement of silk fibrils in solution is strongly associated with the degumming process. In this study, the effect of sodium carbonate degumming concentration on solution properties based on lithium bromide-formic acid dissolution system was systematically investigated. Results showed that the morphology transformation of silk fibroin in solution from nanospheres to nanofibrils is determined by sodium carbonate concentration during the degumming process. Solutions containing different silk fibroin structure exhibited different rheological behaviors and different electrospinnability, leading to different electrospun nanofibre properties. The results have guiding significance for preparation and application of silk fibroin solutions.
KEYWORDS
biomaterials, degumming, electrospinning, nanofibrils, silk
PAPER SUBMITTED: 2016-02-10
PAPER REVISED: 2016-05-05
PAPER ACCEPTED: 2016-05-12
PUBLISHED ONLINE: 2016-08-13
DOI REFERENCE: https://doi.org/10.2298/TSCI1603985L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Issue 3, PAGES [985 - 991]
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Effect of Na2CO3 degumming concentration on LiBr-formic acid-silk fibroin solution properties

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence