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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 160-162)

Edited by:

Guojun Zhang and Jessica Xu

Pages:

1165-1169

DOI:

10.4028/www.scientific.net/AMR.160-162.1165

Citation:

L. P. Fan et al., "Ethanol Vapor-Induced Morphology and Structure Change of Silk Fibroin Nanofibers", Advanced Materials Research, Vols. 160-162, pp. 1165-1169, 2011

Online since:

November 2010

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Price:

$35.00

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