Fluorescence response mechanism of D-glucose selectivity for supramolecular probes composed of phenylboronic-acid-modified β-cyclodextrin and styrylpyridinium dyes

Iwao Suzuki, Akiyo Yamauchi, Yoshiko Sakashita, Kazuaki Hirose, Takashi Miura, Takashi Hayashita

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Supramolecular complex formation of phenylboronic-acid-modified β-cyclodextrin (1) with 1-methyl-4-(4-dimethylaminostyryl)pyridinium (C1SP) in aqueous solutions containing saccharides was fully clarified to gain an insight into the observed D-glucose (D-glc) selectivity of a supramolecular fluorescent probe composed of 1 and the 1-heptyl analogue of C1SP (Chem. Commun., 2006, 4319). At pH 9.6, where 1 was in its anionic form, both the stability and the fluorescence of the 1/C1SP complex were reduced by the formation of boronate esters of 1 with saccharides. Among the saccharides, D-glc had the smallest effect on destabilization of the 1/C1SP complex, almost completely retaining the fluorescence of the 1/C1SP complex that was reduced by other saccharides by approximately 2/3. Under neutral conditions, D-glc enhanced the fluorescence of the 1/C1SP complex by increasing the fraction of anionic 1 while minimally decreasing the stability and fluorescence of the 1/C1SP complex. Although other saccharides also increased the fraction of the anionic 1, their relatively large effects on the destabilization and reduction of fluorescence of the 1/C1SP complex limited the enhancement of the fluorescence of the 1-C1SP system under neutral conditions. 2007

本文言語English
ページ(範囲)1167-1171
ページ数5
ジャーナルanalytical sciences
23
10
DOI
出版ステータスPublished - 2007 10

ASJC Scopus subject areas

  • Analytical Chemistry

フィンガープリント 「Fluorescence response mechanism of D-glucose selectivity for supramolecular probes composed of phenylboronic-acid-modified β-cyclodextrin and styrylpyridinium dyes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル