Ethanol Vapor-Induced Morphology and Structure Change of Silk Fibroin Nanofibers

Abstract:

In this study, regenerated silk fibroin (RSF, from Bombyx mori) nanofibers with smooth surface had been successfully prepared via electrospinning, as shown by SEM and then as-spun fibers were induced under 75% ethanol vapor. We aimed to investigate the morphology and structure change of 75% ethanol vapor-induced silk fibroin nanofibers. To determine any difference in surface topographies, the nanofibers were inspected using atomic force microscope (AFM) and the results showed that after inducement of 75% ethanol vapor for 24 h, the surface of fibers became rough. Differential Scanning Calorimetry (DSC) analysis indicated that electrospun SF nanofibrous membranes typically took silk I form and 75% ethanol vapor-induced SF nanofibrous membranes took silk II structure. These results suggested that 75% ethanol vapor inducement could be an attractive alternative to expand the application of RSF.

• Periodical: Advanced Materials Research (Volumes 160-162)
• Pages: 1165-1169
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.160-162.1165
• Online since: November 2010
• Authors: Lin Peng Fan, Zeng Xiao Cai, Chun Chen Wu, Xiao Hua Geng, Hong Sheng Wang, Chuang Long He, Xiu Mei Mo
• Keywords: Electro-Spinning, Nanofiber, Post-Spin Treatment, Silk Fibroin

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