2004年5月
Metal-complexed nanofiber formation in water from dicarboxylic valylvaline bolaamphiphiles
JOURNAL OF COLLOID AND INTERFACE SCIENCE
- ,
- ,
- ,
- 巻
- 273
- 号
- 2
- 開始ページ
- 394
- 終了ページ
- 399
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.jcis.2004.01.062
- 出版者・発行元
- ACADEMIC PRESS INC ELSEVIER SCIENCE
Nanofiber formation of dipeptide-based bolaamphiphiles, his (N-alpha-amide-L-valyl-L-valine) 1, n-alkane dicarboxylate (n = 6, 8, 10, and 12) in water was analyzed by TEM, SEM, IR, and XRD. The bolaamphiphiles proved to be coordinated to divalent transition-metal cations, Such as Co2+, Ni2+, Cu2+, and Zn2+, giving precipitates, colloidal dispersions (loose hydrogels), and hydrogels upon self-assembly at 23 or 70degreesC. Longer oligornethylene chains and strong interaction between the metal cations and the carboxylate anions are responsible for the hydrogel formation. Energy-filtering transmission electron microscopy (EF-TEM) and field-emission scanning electron microscopy (EF-SEM) images revealed that the colloidal dispersions and the hydrogels consist of a large number of nanofibers with widths of 15-20 nm and lengths of several micrometers. FT-IR and powder XRD measurement supported the existence of a beta-sheet structure-based nanofibers complexing with metal cations. (C) 2004 Elsevier Inc. All rights reserved.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.jcis.2004.01.062
- CiNii Articles
- http://ci.nii.ac.jp/naid/80016664752
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/15082373
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000220999000008&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1016/j.jcis.2004.01.062
- ISSN : 0021-9797
- CiNii Articles ID : 80016664752
- PubMed ID : 15082373
- Web of Science ID : WOS:000220999000008