TY - GEN
T1 - Sol-gel preparation of silica-based nano-fibers for biomedical applications
AU - Chen, Song
AU - Yoshihara, Hiroki
AU - Hanagata, Nobutaka
AU - Shirosaki, Yuki
AU - Blevins, Mark
AU - Nakamura, Yuri
AU - Hayakawa, Satoshi
AU - Stamboulis, Artemis
AU - Osaka, Akiyoshi
PY - 2013/10/1
Y1 - 2013/10/1
N2 - 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 Stöber 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 Stöber 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 Stöber 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.
AB - 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 Stöber 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 Stöber 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 Stöber 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.
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M3 - Conference contribution
AN - SCOPUS:84884648648
SN - 9781118751039
T3 - Ceramic Transactions
SP - 55
EP - 61
BT - Biomaterials Science
T2 - Next Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2012 Conference, MS and T 2012
Y2 - 27 October 2012 through 31 October 2012
ER -