文献类型：期刊文献

英文题名：Assembly and copper ions detection of highly sensible and stable hydroxyapatite nanocomposite fluorescence probe

作者：Lu, Yi[1];Jiang, Hao;Zhang, Nai-Qian;Zhang, Min;Liu, Jin-Ku

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：9

期号：2

起止页码：127

外文期刊名：MICRO & NANO LETTERS

收录：;EI(收录号：20141417538122);WOS:【SCI-EXPANDED(收录号:WOS:000333393900015)】；

基金：This work was supported by the National Natural Science Foundation of China (grant no. 21341007), the Fundamental Research Funds for the Central Universities (grant no. 222201313005) and the State Key Laboratory of Pollution Control and Resource Reuse Foundation (grant no. PCRRF13019).

语种：英文

外文关键词：radiation quenching; calcium compounds; nanocomposites; fluorescence; copper; copper ions detection; hydroxyapatite nanocomposite fluorescence probe; HAPaEuro"FL probe; sensitivity; fluorescence quenching mechanism; Cu2+; Ca-5(PO4)(2)(OH)

摘要：A novel hydroxyapatite (HAP)-fluorescein (FL) nanocomposite has been designed and assembled successfully as an efficient fluorescent probe for Cu2+ ions. Compared with a plain FL probe, the HAP-FL probe exhibits higher stability and sensitivity. The fluorescence intensity of the probe has shown a linear response to Cu2+ in the concentration range of 1 x 10(-3)-1 x 10(-6) moll(-1) in an aqueous solution. These results indicate that the method based on the fluorescence quenching mechanism has enormous potential for the development of a highly efficient fluorescence probe for the detection of the heavy metal ions.