Journal of Fluorescence ( IF 2.6 ) Pub Date : 2021-06-28 , DOI: 10.1007/s10895-021-02755-8 Akshaya Biranje 1 , Namrah Azmi 1 , Abhishekh Tiwari 1 , Atul Chaskar 1
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Heavy metal ions are one of the primary causes of environmental pollution. A marshal effect of heavy metal ions is a paramount ultimatum to humans, aquatic animals and other organisms present in nature. Multitude arrays of materials have been proclaimed for sensing of heavy metal ions and also many methodologies are applied for heavy metal ion sensing. Due to their toxicity and non-biodegradability, it is required to be perceived immediately prior to its manifestation of harmful effects. Quantum Dots (QDs) are zero-dimensional nanomaterial particles and owing to their distinctive optical and electronic properties, they are utilized as nanosensors. QDs have enriched fluorescence properties which includes broad excitation spectrum, narrow emission spectrum and photostability. QDs offer eclectic and sensitive detection of heavy metal ions due to presence of discrete capping agents and different functional groups present on the surface of the QDs. These capping layers and functional groups attune the sensing capability of the QDs, which leverages the interactions of QDs with various analytes by different mechanisms. This review, comprising of papers from 2011 to 2020,focuses on heavy metal ions sensing potential of various quantum dots and its applicability as a nanosensor for on field heavy metal ions detection in water.
Graphical abstract
中文翻译：
用于选择性检测重金属离子的量子点荧光探针
重金属离子是环境污染的主要原因之一。重金属离子的统帅效应是对人类、水生动物和自然界中其他生物体的最重要的最后通牒。多种材料阵列已被宣布可用于重金属离子的感测，并且许多方法也被应用于重金属离子感测。由于它们的毒性和不可生物降解性，需要在其出现有害影响之前立即察觉。量子点（QD）是零维纳米材料颗粒，由于其独特的光学和电子特性，它们被用作纳米传感器。量子点具有丰富的荧光特性，包括宽激发光谱、窄发射光谱和光稳定性。由于量子点表面存在离散的封端剂和不同的官能团，量子点可以对重金属离子进行折衷且灵敏的检测。这些覆盖层和官能团调节量子点的传感能力，从而通过不同的机制利用量子点与各种分析物的相互作用。本综述由 2011 年至 2020 年的论文组成，重点关注各种量子点的重金属离子传感潜力及其作为纳米传感器在水中现场重金属离子检测的适用性。
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