Layer-by-layer structured membranes of silk fibroin and polyethylenimine on electrospun silk fibroin nanofibers

Zhou, Weitao, Huang, Haitao, Du, Shan, Huo, Yingdong, He, Jianxin and Cui, Shizhong 2014, Layer-by-layer structured membranes of silk fibroin and polyethylenimine on electrospun silk fibroin nanofibers, Open materials science journal, vol. 8, pp. 81-86, doi: 10.2174/1874088X01408010081.

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Title Layer-by-layer structured membranes of silk fibroin and polyethylenimine on electrospun silk fibroin nanofibers
Author(s) Zhou, Weitao
Huang, Haitao
Du, Shan
Huo, Yingdong
He, Jianxin
Cui, Shizhong
Journal name Open materials science journal
Volume number 8
Start page 81
End page 86
Total pages 6
Publisher Bentham science publishers
Place of publication Hilversum, Netherlands
Publication date 2014
ISSN 1874-088X
Summary Self-assembled silk fibroin (SF)-polyethylenimine (PEI) multilayered films were fabricated on ethanol treated electrospun SF nanofibrous substrates via the electrostatic layer-by-layer (LBL) adsorption. The film coated membranes were characterized using scanning electron microscopy (SEM), transmission electron microscope (TEM) and X-ray photoelectron spectrophotometer (XPS). The SEM images showed that the multilayers of SF-PEI were formed on the surface of the ethanol treated SF nanofibres. The characteristics such as the fiber shape and porous structure were well maintained as the number of the coated SF-PEI bilayers was less than five. However, obvious adhesive substances and blocked pores were observed on the surface of the fibers as the number of bilayers of SF-PEI increased to six. Furthermore, the obvious core-shell structures were observed by TEM. The thickness of five SF-PEI bilayers was approximately 80nm. Additionally, the XPS results also revealed that the SF-PEI multilayer composite membranes formed. The adsorption mainly depended on a simple electrostatic interaction between the layers of SF and PEI. These SF-PEI multilayer assembled nanofibrous membranes could be a promising material for use as a sensor, gene delivery agent and scaffolds.
Language eng
DOI 10.2174/1874088X01408010081
Field of Research 091205 Functional Materials
Socio Economic Objective 860406 Synthetic Fibres
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Zhou et al.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30086864

Document type: Journal Article
Collections: Institute for Frontier Materials
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