THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

External Links

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
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 3, PAGES [985 - 991]
REFERENCES
  1. He, C.-H., et al., Bubbfil Spinning for Fabrication of PVA Nanofibers, Thermal Science, 19 (2015), 2, pp. 743-746
  2. Vasconcelos, A., et al., Novel Silk Fibroin/Elastin Wound Dressings, Acta Biomaterialia, 8 (2012), 8, pp. 3049-3060
  3. Chen, R., et al., Bubble Rupture in Bubble Electrospinning, Thermal Science, 19 (2015), 4, pp. 1141-1149
  4. Ming, J., et al., Novel Silk Fibroin Films Prepared by Formic Acid/Hydroxyapatite Dissolution Method, Materials Science and Engineering: C, 37 (2014), Apr., pp. 48-53
  5. Liu, Z., et al., Preparation of Electrospun Silk Fibroin Nanofibers from Solutions Containing Native Silk Fibrils, Journal of Applied Polymer Science, 132 (2015), 1, p. 41236
  6. Porter, D., et al., Silk as a Biomimetic Ideal for Structural Polymers, Advanced Materials, 21 (2009), 4, pp. 487-492
  7. Sashina, E. S., et al., Structure and Solubility of Natural Silk Fibroin, Russian Journal of Applied Chemistry, 79 (2006), 6, pp. 869-876
  8. Holland, C., et al., Comparing the Rheology of Native Spider and Silkworm Spinning Dope, Nature Materials, 5 (2006), 11, pp. 870-874
  9. Zhang, F., et al., Mechanisms Control of Silk-Based Electrospinning, Biomacromolecules, 13 (2012), 3, pp. 798-804
  10. Jeong, L., et al., Time-Resolved Structural Investigation of Regenerated Silk Fibroin Nanofibers Treated with Solvent Vapor, International Journal of Biological Macromolecules, 38 (2006), 2, pp. 140-144
  11. Zhang, F., et al., Facile Fabrication of Robust Silk Nanofibril Films via Direct Dissolution of Silk in CaCl2-Formic Acid Solution, ACS Applied Materials & Interfaces, 7 (2015), 5, pp. 3352-3361

© 2017 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, 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