Paper Title:
Study on Morphology and Thermal Stability of Nanoporous Silk Fibroin Films
  Abstract

Nanoporous silk fibroin (SF) films were prepared as SF film loaded with methoxy poly(ethylene glycol)-b-poly(D,L-lactide) (MPEG-b-PDLL) nanoparticles by film casting of MPEG-b-PDLL nanoparticle suspension-SF solution. Nanoporous structures of the SF films were formed due to self-condensation and nanophase separation of nanoparticles from SF film matrix during drying process. The films with SF/MPEG-b-PDLL ratios of 20/1, 20/2 and 20/3 (w/w) were prepared and investigated. The MPEG-b-PDLL nanoparticles can be observed on film surface and cross-section with 100-300 nm in size. The size of interconnected nanopore was in the range of 20 – 300 nm. The number and size of nanopores increased as increasing the MPEG-b-PDLL ratio. Thermal stability of the films studied from differential thermogravimetric (DTG) thermogram found that the nanoparticles dispersed into the SF films could improve thermal stability of each component. This indicated strong hydrogen bond interactions between SF and MPEG-b-PDLL were existed. Film transparency of the SF nanoporous films decreased when the MPEG-b-PDLL ratio was increased.

  Info
Periodical
Advanced Materials Research (Volumes 55-57)
Main Theme
Edited by
Tawee Tunkasiri
Pages
721-724
DOI
10.4028/www.scientific.net/AMR.55-57.721
Citation
Y. Srisuwan, N. Kotsaeng, Y. Baimark, N. Narkkong, W. Simchuer, "Study on Morphology and Thermal Stability of Nanoporous Silk Fibroin Films ", Advanced Materials Research, Vols. 55-57, pp. 721-724, 2008
Online since
August 2008
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$32.00
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