New Fe3+ specific "turn-on" fluorescent sensor based on H2 saldien-substituted phenanthroimidazole: Fabrication and practical applications

被引：4

作者：

Erdemir, Serkan ^{[1
]}

Alici, Onder ^{[1
]}

Aydin, Duygu ^{[2
]}

Kocyigit, Ozcan ^{[1
]}

机构：

[1] Selcuk Univ, Sci Fac, Dept Chem, TR-42250 Konya, Turkey

[2] Karamanoglu Mehmetbey Univ, Kamil Ozdag Sci Fac, Dept Chem, TR-70100 Karaman, Turkey

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2021年 / 337卷 / 337期

关键词：

Phenanthroimidazole; H-2; saldien; Detection; Iron; Fluorescence; SELECTIVE DETECTION; CHEMOSENSOR; IRON(III); ION; FE(III); CU2+;

D O I：

10.1016/j.molliq.2021.116471

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Precise recognition of Fe3+ in a biological system and ecological environment is of great importance. Therefore, a new phenanthroimidazole based chemosensor SP (H-2 saldien-substituted phenanthroimidazole) was designed, fabricated and evaluated as a facile fluorogenic "OFF-ON" type chemosensor toward Fe3+ in aqueous solution. The SP could sensitively and selectively recognize Fe3+ with a limit of detection of 0.36 mu M. The sensing mechanism for the SP-Fe3+ system was successfully proven on FT-IR spectroscopy, TOF-MS and the calculations of DFT (density functional theory). It is found that the SP could be basically recycled through treating with EDTA. Moreover, Fe3+ can be visualized by prepared SP in the test kit and low-cost smartphone sensor applications. Evidently, the experiments manifested that the prepared SP was capable of recognizing of Fe3+ in aqueous media. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：6