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SOL-GEL PREPARATION OF SILICA-BASED NANO-FIBERS FOR BIOMEDICAL APPLICATIONS

文献类型： 会议论文

第一作者： Song Chen

作者： Song Chen 1 ; Hiroki Yoshihara 2 ; Nobutaka Hanagata 3 ; Yuki Shirosaki 2 ; Mark Blevins 4 ; YuriNakamura 2 ; Satoshi Hayakawa 2 ; Artemis Stamboulis 4 ; Akiyoshi Osaka 2 ;

作者机构： 1.Graduate School of Natural Science and Technology, Okayama University Tsushima, Kita-ku, Okayama 700-8530, Japan,Biomaterials Unit, National Institute for Materials Science Sengen, Tsukuba 305-0047, Japan

2.Graduate School of Natural Science and Technology, Okayama University Tsushima, Kita-ku, Okayama 700-8530, Japan

3.Biomaterials Unit, National Institute for Materials Science Sengen, Tsukuba 305-0047, Japan

4.School of Metallurgy and Materials, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK

会议名称： Next generation biomaterials and surface properties of biomaterials symposia

主办单位：

页码： 55-61

摘要： Silica nanotube sponges and solid silica fiber mats were fabricated using a collagen and electrospun poly(vinylalcohol) as the templates via the sol-gel route. In vitro reassembled collagen fibrils were treated in the Stober sol-gel precursor mixture of tetraethoxysilane (TEOS), ethanol, water, and ammonia to produce the silica-coated collagen fibrils. The electrospun PVA fiber mats were soaked in the Stober type as well as acid-catalyzed silica oligomer sol from TEOS. Those were calcined to yield apparently silica nano- or micro-fibers, but transmission and scanning electron microscope observations showed that the Stober sol treatment resulted in silica nano- or micro-fibers with hollow structure, or nanotubes (silica NTs), while the acid-catalyzed sol yielded solid fibrous mats.

分类号： r318.08

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