کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1362842 | 981497 | 2007 | 6 صفحه PDF | دانلود رایگان |
A water-soluble 8-aminoquinolino-β-cyclodextrin/1-adamantaneacetic acid (1/ADA) system is prepared in situ and exhibits a unique switch-on fluorescence response to Zn2+ over other common metal ions. Spectrophotometric studies demonstrate that this system can strongly coordinate Zn2+ through a cyclodextrin/substrate/metal triple recognition mode, and the resulting 1/ADA/Zn2+ ternary complex emits the blue-green fluorescence (λ = 490 nm) that can be easily distinguished by eyes in aqueous solution. Significantly, the switch-on fluorescence response of 1/ADA to Zn2+ is barely affected by various metal ions except Cu2+. As a result, this system can behave as an efficient supramolecular fluorescence sensor for Zn2+ in water.
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Journal: Bioorganic & Medicinal Chemistry - Volume 15, Issue 13, 1 July 2007, Pages 4537–4542