A selective diaminomaleonitrile-based dual channel emissive probe for Al3+ and its application in living cell imaging

被引：31

作者：

Li, Zheng ^{[1
]}

Liu, Chong ^{[1
]}

Wang, Jing ^{[2
]}

Wang, Shujun ^{[1
]}

Xiao, Liwei ^{[1
]}

Jing, Xuemin ^{[1
]}

机构：

[1] Langfang Normal Univ, Coll Chem & Mat Sci, Langfang 065000, Peoples R China

[2] Langfang Normal Univ, Coll Life Sci, Langfang 065000, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2019年 / 212卷

关键词：

Selective; Diaminomaleonitrile-based; Dual channel; Al-3(+); Living cell imaging; COLORIMETRIC DETECTION; FLUORESCENT SENSOR; INDUCED INHIBITION; ROOT ELONGATION; ALUMINUM; CHEMOSENSOR; RECOGNITION; IONS; SPECTROMETRY; GENERATION;

D O I：

10.1016/j.saa.2019.01.031

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A selective diaminomaleonitrile-based fluorescent probe for Al3+(L) has been synthesized and characterized. The sensing behavior of L towards different metal ions was investigated by fluorescent spectra and competition experiment. The results showed that L exhibited a dual channel emission (lambda(em) 522 & 558 nm) with yellow fluorescence in the presence of Al3+ over other metal ions in DOH solution. The probe L was bound to Al(3+ )in a 1:2 stoichiometric manner as supported by Job's plot analysis. The binding constant was 9.55 x 10(8)M(-2) with the detection limit of 10.3 nM. The turn-on response was attributed to the inhibition of PET and C=N isomerization after binding with Al-3(+) while the dual emissions were due to ESIPT and ICT processes. In addition, the application of L for imaging Al3+ in living Hela cells was achieved. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：349 / 355

页数：7

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