Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.
Talanta. 2010 Sep 15;82(4):1622-6. doi: 10.1016/j.talanta.2010.07.049. Epub 2010 Jul 30.
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 (1)H-(1)H NOESY NMR measurement.
β-环糊精（CD）经 2-（9-蒽甲酰胺基）苯基基团改性（Ant-CD）合成，并通过紫外和荧光光谱法研究了其络合行为。在临界胶束浓度以下，Ant-CD 在水中加入曲拉通 X-100（TX-100）后，荧光强度大幅增强约 10 倍。Ant-CD 还在添加类似材料，即水中的正辛基苯磺酸钠时，荧光增加约 4 倍。这些结果表明，Ant-CD 可以作为 TX-100 的高灵敏度和选择性化学传感器。Ant-CD 和 TX-100 形成了假轮烷超分子配合物。这一结果得到了（1）H-（1）H NOESY NMR 测量的支持。
