کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840088 | 1505864 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An 8-aminoquinoline derivative as a molecular platform for fluorescent sensors for Zn(II) and Cd(II) ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An 8-aminoquinoline derivative as a molecular platform for fluorescent sensors for Zn(II) and Cd(II) ions An 8-aminoquinoline derivative as a molecular platform for fluorescent sensors for Zn(II) and Cd(II) ions](/preview/png/7840088.png)
چکیده انگلیسی
The amide derivatives of 8-aminoquinoline with two types of amino acid pendants, i.e. glycine and β-alanine, are evaluated for fluorescence sensing of various metal ions. In Tris-HCl aqueous buffer solution, the derivative containing glycine exhibits selective fluorescence enhancement with Zn2+. The fluorescence turn-on signal at a longer wavelength is a result of the binding between N-8-aminoquinolinylglycinamide and Zn2+ which is promoted by the deprotonation of the amide proton. However, both Zn2+ and Cd2+ induce the turn-on signal in ethanol solution. X-ray crystallography of single crystals of both Zn2+ and Cd2+ complexes formed in ethanol reveals 1-D coordination polymer structures in which the metal ions are tethered with N and O of the amide groups. Simultaneous detection of Zn2+ and Cd2+ are possible by using paper chromatographic separation and the ligand as a visualizing agent. The fluorescence imaging of either Zn2+ or Cd2+ in plant tissue is demonstrated. The conjugation of the ligand with dimethylaminophenylacetylene effectively tunes the emission color of the ligand while retaining the sensing selectivity. Therefore, N-8-aminoquinolinylglycinamide is a simple yet effective binding probe for Zn2+ and Cd2+ with excellent fluorescence signal transduction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 198, June 2018, Pages 59-67
Journal: Journal of Luminescence - Volume 198, June 2018, Pages 59-67
نویسندگان
Kanokthorn Boonkitpatarakul, Atchareeporn Smata, Kantapong Kongnukool, Suphongphan Srisurichan, Kittipong Chainok, Mongkol Sukwattanasinitt,