Hybrid Silk Fibers Dry-Spun from Regenerated Silk Fibroin/Graphene Oxide Aqueous Solutions

2016 ◽  
Vol 8 (5) ◽  
pp. 3349-3358 ◽  
Author(s):  
Chao Zhang ◽  
Yaopeng Zhang ◽  
Huili Shao ◽  
Xuechao Hu
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Silk Fibroin ◽  
Silk Fibers ◽  
Regenerated Silk Fibroin

Influence of shear on the structures and properties of regenerated silk fibroin aqueous solutions

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62936-62940 ◽  
Author(s):  
Yuan Jin ◽  
Yichun Hang ◽  
Qingfa Peng ◽  
Yaopeng Zhang ◽  
Huili Shao ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Shear Rate ◽  
Aqueous Solutions ◽  
Crystal Structures ◽  
Silk Fibroin ◽  
Structures And Properties ◽  
Regenerated Silk Fibroin

Regenerated silk fibroin molecules in aqueous solutions gradually form rod-like liquid crystal structures after being applied sufficient shear rate and shear time.

Role of Ca2+on structures and properties of regenerated silk fibroin aqueous solutions and fibres

2014 ◽  
Vol 18 (sup2) ◽  
pp. S2-113-S2-115 ◽  
Author(s):  
Y. Jin ◽  
Y. C. Hang ◽  
Y. P. Zhang ◽  
H. L. Shao ◽  
X. C. Hu
Keyword(s):  
Aqueous Solutions ◽  
Silk Fibroin ◽  
Structures And Properties ◽  
Regenerated Silk Fibroin

scholarly journals Microstructural evolution of regenerated silk fibroin/graphene oxide hybrid fibers under tensile deformation

RSC Advances ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 3108-3116 ◽  
Author(s):  
Chao Zhang ◽  
Yaopeng Zhang ◽  
Jie Luo ◽  
Jingru Shi ◽  
Huili Shao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Silk Fibroin ◽  
Tensile Deformation ◽  
Strain Curve ◽  
Microstructural Change ◽  
Stress Strain Curve ◽  
Hybrid Fibers ◽  
Proposed Model ◽  
Regenerated Silk Fibroin ◽  
Stretching Deformation

The stress–strain curve and proposed model of microstructural change of silk fibroin/GO hybrid fibers during the stretching deformation.

scholarly journals Effect of Sodium Carbonate Concentrations on the Formation and Mechanism of Regenerated Silk Fibroin Nanofibers by Electrospinning

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Hao Dou ◽  
Baoqi Zuo
Keyword(s):  
Rheological Property ◽  
Aqueous Solutions ◽  
Silk Fibroin ◽  
Sodium Carbonate ◽  
Electrospinning Process ◽  
Carbonate Concentration ◽  
Low Viscosity ◽  
Regenerated Silk Fibroin ◽  
Silk Fibroin Nanofibers ◽  
First Time

Degumming is the first process for the preparation of all silk-based products. In this paper, effect of sodium carbonate concentrations for silk degumming on the formation of electrospun silk fibroin nanofibers was investigated and the reason for the silk electrospinning process was explained for the first time by differences from the microstructure of regenerated silk fibroin. With increasing the sodium carbonate concentration, microstructure both in the aqueous solutions and in the electrospinning solutions transformed from nanofibrils to nanoparticles, leading to obvious changes on rheological property; electrospinning solutions with nanofibrils behaved like the native silk dope and owned remarkably higher viscosity than the solutions with nanoparticles showing very low viscosity. More interestingly, nanofibrils favored the formation of silk nanofibers with ease, and even nanofibers could be electrospun at concentration 2%. However, nanoparticles were completely unable to generate nanofibers at high spinning concentration 8%. Importance of sodium carbonate concentrations is heavily emphasized for impacting the microstructure types and further influencing the electrospinning performance of regenerated silk. Hence, sodium carbonate concentrations provide a controllable choice for the preparation of silk-based electrospun biomaterials with desired properties.

scholarly journals CU(Ⅱ)-INDUCED CONFORMATION TRANSITION OF REGENERATED SILK FIBROIN IN AQUEOUS SOLUTIONS

2009 ◽  
Vol 009 (10) ◽  
pp. 1056-1061 ◽  
Author(s):  
Yiming ZHONG ◽  
Yuhong YANG ◽  
Xin CHEN ◽  
Zhengzhong SHAO
Keyword(s):  
Aqueous Solutions ◽  
Silk Fibroin ◽  
Regenerated Silk Fibroin ◽  
Conformation Transition

Extraction and Characterization of Silk Fibroin from Waste Silk

2013 ◽  
Vol 788 ◽  
pp. 174-177 ◽  
Author(s):  
Hao Liu ◽  
Ju Wei ◽  
Lai Jiu Zheng ◽  
Yu Ping Zhao
Keyword(s):  
Aqueous Solution ◽  
Weight Loss ◽  
Glass Transition ◽  
Calcium Chloride ◽  
Silk Fibroin ◽  
Chloride Concentration ◽  
Silk Fibers ◽  
Regenerated Silk Fibroin ◽  
Dialysis Method

Waste silk fibers were dissolved in calcium chloride aqueous solution. Effect of calcium chloride concentration on silk solubility was studied. Dialysis method was used to purify the dissolved silk fibroin. The purified silk fibroin was characterized by FTIR and thermoanalysis technique. Results showed that the purified silk fibroin mainly had irregular curly conformation. The glass transition temperature of the regenerated silk fibroin reached 90.6°C-135°C, higher than 78.9°C-135°C before purification. Thermal weight loss temperature by 50% was 490.3°C differing from 429.7°C before purification.

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