Tunable Structures and Properties of Electrospun Regenerated Silk Fibroin Mats Annealed in Water Vapor at Different Times and Temperatures

被引:26
作者
Huang, Xiangyu [1 ]
Fan, Suna [1 ]
Altayp, Alhadi Ibrahim Mohammed [1 ]
Zhang, Yaopeng [1 ]
Shao, Huili [1 ]
Hu, Xuechao [1 ]
Xie, Minkai [2 ]
Xu, Yuemin [2 ]
机构
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
[2] Shanghai Jiao Tong Univ, Peoples Hosp 6, Dept Urol, Shanghai 200233, Peoples R China
基金
中国国家自然科学基金;
关键词
SOLID-STATE; FIBERS; NANOFIBERS; SCAFFOLDS; MODEL; BIOMATERIALS; CONFORMATION; NMR;
D O I
10.1155/2014/682563
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Regenerated silk fibroin (SF) mats were fabricated using electrospinning technique, followed by mild water vapor annealing to effectively tune the structures and improve the mechanical properties of the mats at different annealing times and temperatures. The breaking strength and the breaking energy of the mats treated with water vapor at 65 degrees C for 12 h reached 6.0MPa and 171.7 J/kg, respectively. The conformational transition of the SF mats was significantly influenced by the treating temperature, while the influence of time was comparatively limited. The influence is consistent with the time-temperature equivalent principle and would be helpful for the preparation of water-vapor-annealed silk-based biomaterials for various applications.
引用
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页数:7
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