Sol-gel preparation of silica-based nano-fibers for biomedical applications

Song Chen; Hiroki Yoshihara; Nobutaka Hanagata; Yuki Shirosaki; Mark Blevins; Yuri Nakamura; Satoshi Hayakawa; Artemis Stamboulis; Akiyoshi Osaka

Sol-gel preparation of silica-based nano-fibers for biomedical applications

Song Chen, Hiroki Yoshihara, Nobutaka Hanagata, Yuki Shirosaki, Mark Blevins, Yuri Nakamura, Satoshi Hayakawa, Artemis Stamboulis, Akiyoshi Osaka

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

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.

Original language	English
Title of host publication	Biomaterials Science
Subtitle of host publication	Processing, Properties and Applications III
Pages	55-61
Number of pages	7
Publication status	Published - Oct 1 2013
Event	Next Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2012 Conference, MS and T 2012 - Pittsburgh, PA, United States Duration: Oct 27 2012 → Oct 31 2012

Publication series

Name	Ceramic Transactions
Volume	242
ISSN (Print)	1042-1122

Other

Other	Next Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2012 Conference, MS and T 2012
Country	United States
City	Pittsburgh, PA
Period	10/27/12 → 10/31/12

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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Sol-gel preparation of silica-based nano-fibers for biomedical applications. / Chen, Song; Yoshihara, Hiroki; Hanagata, Nobutaka; Shirosaki, Yuki; Blevins, Mark; Nakamura, Yuri; Hayakawa, Satoshi; Stamboulis, Artemis; Osaka, Akiyoshi.

Biomaterials Science: Processing, Properties and Applications III. 2013. p. 55-61 (Ceramic Transactions; Vol. 242).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chen, S, Yoshihara, H, Hanagata, N, Shirosaki, Y, Blevins, M, Nakamura, Y, Hayakawa, S, Stamboulis, A & Osaka, A 2013, Sol-gel preparation of silica-based nano-fibers for biomedical applications. in Biomaterials Science: Processing, Properties and Applications III. Ceramic Transactions, vol. 242, pp. 55-61, Next Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2012 Conference, MS and T 2012, Pittsburgh, PA, United States, 10/27/12.

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abstract = "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 St{\"o}ber 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 St{\"o}ber 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 St{\"o}ber 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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AU - Hanagata, Nobutaka

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AU - Blevins, Mark

AU - Nakamura, Yuri

AU - Hayakawa, Satoshi

AU - Stamboulis, Artemis

AU - Osaka, Akiyoshi

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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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