【作者】 李钰； 谭远航； 文秋林； 凌剑； 曹秋娥；

【Author】 Yu Li;Yuan-Hang Tan;Qiu-Lin Wen;Jian Ling;Qiu-E Cao;School of Chemical Science and Technology, Yunnan University;

【机构】 云南大学化学科学与工程学院；

【摘要】 荧光贵金属纳米簇具有独特的荧光发光性质,广泛的应用在环境监测、生物小分子检测、细胞成像及医疗卫生等领域。荧光贵金属纳米簇的合成可使用蛋白质、DNA、树状大分子及一些小分子化合物作为模板分子来控制纳米簇的大小和荧光性质。本文使用巯基-β-环糊精为模板,一步法合成了一种新的发绿色荧光的金纳米簇。与常见的发红色荧光的金纳米簇不同,其金纳米簇发射波长在500 nm附近,具有较窄的荧光发射谱带。这种荧光金纳米簇可用于构建基于β-环糊精的主客体识别的荧光传感器,在生物小分子的特异性识别和分析中有一定的应用价值。更多还原

【Abstract】 Noble metal nanoclusters(NCs) are a new type of fluorescent nanomaterials that have widely used in environmental monitoring, small biological molecules detection, cellar imaging and medical engineering. Generally, proteins, DNA, dendrimers and small molecular compounds are used as template molecules to synthesize and control fluorescence property of nanocluster. In this paper we reported a one-pot synthesis of a new type of fluorescence gold nanoclusters by SH-β-cyclodextrin. Different to common red-emission gold nanoclusters, the new SH-β-cyclodextrin stabilized gold nanoclusters have a green-color emission with narrow bandwidth located at 500 nm. The SH-β-cyclodextrin stabilized gold nanoclusters can also be used as a fluorescence sensor based on host-guest recognition in cyclodextrin and potentially be applied to recognize and analyze of biological small molecules更多还原