Novel Silica Nanotubes Using a Library of Carbohydrate Gel Assemblies as Templates for Sol-Gel Transcription in Binary Systems

Jong Hwa Jung, Shim Sung Lee, Seiji Shinkai, Rika Iwaura, Toshimi Shimizu

研究成果: ジャーナルへの寄稿記事

9 引用 (Scopus)

抄録

Sugar-based gelator p-dodecanoyl-aminophenyl-β-D-aldopyranosides (1-3) have been shown to self-assemble in the presence of p-aminophenyl aldopyranosides. The hydrogel 1+4 showed the double-helical structure with 3-25 nm outer diameters, which is quite different from that of 1. The gel 2+5 revealed twisted ribbon structure with 30-50 nm in widths and a few micrometers of length whereas the gel 3+4 revealed the single and the bundled fiber structures. The difference in these gel supramolecular structures has successfully been transcribed into silica structures by sol-gel polymerization of tetraethoxysilane (TEOS), resulting in the double-helical, the twisted-ribbon, the single and the multiple (lotus-shaped) hollow fiber structures. These results indicate that novel silica structures can be created by transcription of various superstructures formed in binary gels through the hydrogen-bonding interaction, and the amino group of the p-aminophenyl aldopyranosides acts as an efficient driving force to create novel silica nanotubes. Furthermore, electron energy-loss spectroscopy (ELLS) provided strong evidence for the inner hollow structure of the double-helical silica nanotube. This is a novel and successful example that a variety of new silica structures can be created using a library of carbohydrate gel fibers as their templates.

元の言語英語
ページ(範囲)63-68
ページ数6
ジャーナルBulletin of the Korean Chemical Society
25
発行部数1
DOI
出版物ステータス出版済み - 1 20 2004

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Transcription
Silicon Dioxide
Nanotubes
Sol-gels
Gels
Carbohydrates
Fibers
Electron energy loss spectroscopy
Hydrogel
Sugars
Hydrogen bonds
Polymerization

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

これを引用

Novel Silica Nanotubes Using a Library of Carbohydrate Gel Assemblies as Templates for Sol-Gel Transcription in Binary Systems. / Jung, Jong Hwa; Lee, Shim Sung; Shinkai, Seiji; Iwaura, Rika; Shimizu, Toshimi.

:: Bulletin of the Korean Chemical Society, 巻 25, 番号 1, 20.01.2004, p. 63-68.

研究成果: ジャーナルへの寄稿記事

Jung, Jong Hwa ; Lee, Shim Sung ; Shinkai, Seiji ; Iwaura, Rika ; Shimizu, Toshimi. / Novel Silica Nanotubes Using a Library of Carbohydrate Gel Assemblies as Templates for Sol-Gel Transcription in Binary Systems. :: Bulletin of the Korean Chemical Society. 2004 ; 巻 25, 番号 1. pp. 63-68.
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abstract = "Sugar-based gelator p-dodecanoyl-aminophenyl-β-D-aldopyranosides (1-3) have been shown to self-assemble in the presence of p-aminophenyl aldopyranosides. The hydrogel 1+4 showed the double-helical structure with 3-25 nm outer diameters, which is quite different from that of 1. The gel 2+5 revealed twisted ribbon structure with 30-50 nm in widths and a few micrometers of length whereas the gel 3+4 revealed the single and the bundled fiber structures. The difference in these gel supramolecular structures has successfully been transcribed into silica structures by sol-gel polymerization of tetraethoxysilane (TEOS), resulting in the double-helical, the twisted-ribbon, the single and the multiple (lotus-shaped) hollow fiber structures. These results indicate that novel silica structures can be created by transcription of various superstructures formed in binary gels through the hydrogen-bonding interaction, and the amino group of the p-aminophenyl aldopyranosides acts as an efficient driving force to create novel silica nanotubes. Furthermore, electron energy-loss spectroscopy (ELLS) provided strong evidence for the inner hollow structure of the double-helical silica nanotube. This is a novel and successful example that a variety of new silica structures can be created using a library of carbohydrate gel fibers as their templates.",
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