TritonX-100 selective chemosensor based on β-cyclodextrin modified by anthracene derivative

TALANTA

卷:82

Article

Oka, Yoshikazu²  Nakamura, Shinnosuke²  Morozumi, Tatsuya¹  Nakamura, Hiroshi¹ 

[1] Hokkaido Univ, Fac Environm Sci, Sect Mat Sci, Sapporo, Hokkaido 0600810, Japan

[2] Hokkaido Univ, Grad Sch Environm Sci, Div Environm Mat Sci, Sapporo, Hokkaido 0600810, Japan

关键词: Cyclodextrin;    Chemosensor;    Twisted intramolecular charge transfer;    TritonX-100;    Nonionic surfactant;    Pseudorotaxane;   

DOI  :  10.1016/j.talanta.2010.07.049

来源: Elsevier

【 摘 要 】

beta-Cyclodextrin (CD) modified by 2-(9-anthracenecarboxamido)phenyl group (Ant-CD) was synthesized and their complexation behavior was investigated by UV and fluorescence spectroscopy. Fluorescence intensity of Ant-CD was dramatically enhanced ca. 10-fold by the addition of TritonX-100 (TX-100) in water below the critical micelle concentration. Ant-CD also showed ca. 4-fold fluorescence increasing in the addition of analogous materials, n-octylbenzenesulfonate in water. These results indicate that Ant-CD can act as a highly sensitive and selective chemosensor for TX-100. Ant-CD and TX-100 formed a pseudorotaxane supramolecular complex. This result was supported by H-1-H-1 NOESY NMR measurement. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free