银纳米簇介导的荧光传感器在重金属离子检测中的应用

Application of fluorescence sensors mediated by silver nanoclusters in the detection of heavy metal ions

中文关键词:  银纳米簇  重金属离子  荧光  生物传感器

英文关键词:silver nanoclusters  heavy metal ions  fluorescence  biosensor

中文摘要:

      重金属离子作为一类环境污染物, 常存在于空气、土壤和水体中, 由于其易在生物体内富集、难以降解, 严重威胁了人类健康, 因而成为环境污染和食品安全等领域的重要检测指标。由于检测重金属离子的传统方法存在仪器设备复杂和操作要求较高等局限性, 因此, 开发快速、灵敏、简便的重金属离子检测方法越来越受到研究人员的重视。银纳米簇(silver nanoclusters, AgNCs)作为一种新型纳米材料, 具有良好的荧光特性, 其介导的荧光生物传感器可以应用于重金属离子的快速检测, 并且具有高灵敏度和特异性。本文综述了以不同分子为模板合成的AgNCs, 以及其介导的荧光生物传感器在单一和多种重金属离子检测方面的最新研究进展, 阐述了AgNCs今后仍需深入研究的部分, 并对其发展前景进行了展望, 以期为其介导的荧光传感器的应用提供参考。

英文摘要:

      As a kind of environmental pollutants, heavy metal ions often exist in air, soil and water. Because they are easy to be enriched in organisms and difficult to be degraded, they pose a serious threat to human health, and thus become an important indicator of environmental pollution and food safety. Due to the limitations of traditional methods for detecting heavy metal ions, such as complex equipment and high operational requirements, the development of fast, sensitive and simple detection methods for heavy metal ions has attracted more and more attention from researchers. As a new nanomaterial, silver nanoclusters (AgNCs) have great fluorescence characteristics, and their mediated fluorescence biosensors can be applied to the rapid detection of heavy metal ions with high sensitivity and specificity. This paper summarized AgNCs synthesized by different molecular templates, and the latest research progress of their mediated fluorescence biosensors for the detection of one and more heavy metal ions, and this paper discussed the further research of AgNCs and prospected its development prospect, in order to provide references for the application of their mediated fluorescence sensors.