基于羟基吡啶酮的螯合剂:荧光传感和敏化的分子工具

IF 3.5 Q2 CHEMISTRY, ANALYTICAL
Shalini Singh, Neha Kumari, B. K. Kanungo and Minati Baral
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引用次数: 0

摘要

在目前开发的各种分析工具中,基于荧光检测的传感器因其灵敏度高、成本低、反应快和操作简单而受到广泛认可。设计和合成荧光化学传感器来感知与环境和生物相关的金属,引起了人们极大的兴趣。荧光传感器的功效取决于两个关键特征:结合单元和能够吸收和发射光的荧光团。络合时,传感器的电子结构会发生改变,从而导致光发射或吸收的强度和波长发生变化。羟基吡啶酮是一类 N-杂环金属螯合剂,对硬金属具有较高的亲和力,是金属螯合领域的重要化学工具,在医疗、生物和工业领域有着广泛的应用。然而,此类化合物很少用作传感器。本文概述了最近发明的与羟基吡啶酮基螯合剂有关的荧光化学传感器,用于选择性地感知对生物和环境具有重要意义的分析物。讨论涉及有助于开发高选择性离子荧光传感器的结构参数、配位模式和其他方法。此外,还探讨了羟基吡啶酮在镧系元素螯合物作为敏化剂的能量转移过程中的发光特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Hydroxypyridinone based chelators: a molecular tool for fluorescence sensing and sensitization

Hydroxypyridinone based chelators: a molecular tool for fluorescence sensing and sensitization

Among the currently developed analytical tools, sensors based on fluorescence detection have received immense recognition owing to their high sensitivity, low cost, fast response, and simplicity. The design and synthesis of fluorescence chemosensors to sense metals that are of environmental and biological relevance are of appreciable interest. The efficacy of fluorescent sensors relies on two crucial features: a metal binding unit and a fluorophore that can absorb and emit light. The electronic structure of the sensor is altered upon complexation, leading to a change in light emission or absorption intensity and wavelength. Hydroxypyridinones, a class of N-heterocyclic metal chelators, are appreciated as magnificent chemical tools in metal chelation with a higher affinity towards hard metals, displaying various medical, biological, and industrial applications. However, such compounds are scarcely used as sensors. This article outlines the recent invention of fluorescence chemosensors related to hydroxypyridinone based chelators for the selective sensing of analytes of biological and environmental importance. This discussion involves the structural parameters, coordination mode, and other approaches that helped develop highly selective fluorescence sensors for the ions. In addition, the luminescence properties of the hydroxypyridinones in the energy transfer process of lanthanide chelates as sensitizers are determined.

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