基于金银双金属纳米簇的荧光传感方法研究进展

Research progress of fluorescence sensing method based on gold and silver bimetallic nanoclusters

金属纳米簇(Metal NCs)是一种发展迅速的纳米材料,核心尺寸小于2 nm的贵金属纳米颗粒现已被认为是金属纳米簇。与由单金属原子组成的纳米团簇相比,双金属纳米簇通过协同效应掺入外来原子的其他性质把两种贵金属的优异性能结合在一起,往往表现出更加优异的光学、电子和催化特性,在离子检测、生物小分子检测及生物分析方面具有广阔的应用前景。在这篇综述中,从性能、合成策略及应用三方面对基于金银双金属纳米簇的荧光传感系统的研究进行总结,并对未来的发展方向进行展望。

Metal NCs are one of rapidly developing nanomaterial.Noble metal nanoparticles with core size less than 2 nm are now considered as metal nanoclusters.In comparison with pure metal nanoclusters,double metal nanoclusters have other excellent properties due to the the synergistic effect of two atoms.The double metal nanoclusters combined the excellent properties of two kinds of novel metals,which often show more excellent optical,electronic,and catalytic properties.They have broad application prospects in ion detection,small biomolecular detection and bioanalytical fields.In this review,the research on the properties,synthesis strategy and applications of fluorescence sensing system based on gold and silver bimetallic nanoclusters are summarized,and the future development direction is prospected.