title: Highly fluorescent au nanoclusters: Electrostatically induced phase transfer synthesis for Cu2+sensing.
abstract: This paper reports a convenient method for the synthesis of highly fluorescent Au nanoclusters (NCs) via electrostatically induced phase transfer. Furthermore, on the basis of an aggregation-induced fluorescence quenching mechanism, the potential application for Cu2+sensing on the fluorescence emission of the Au NCs is discussed. These prepared fluorescent Au NCs offer acceptable sensitivity, high selectivity, and a limit of quantitation of 0.02 μM for the measurement of Cu2+, which is lower than the maximum level (1 ppm, equals to 15.6 μM) of Cu2+permitted in drinking water in China. This study contributes to the further development of practical applications with fluorescent NCs.
authors.affiliation: Zhengzhou Tobacco Research Institute, CNTC, Zhengzhou, People's Republic of China.
authors.forename: Qiansi
authors.initials: Q
authors.lastname: Chen
authors.affiliation: College of Chemistry and Engineering, Zhengzhou University, People's Republic of China.
authors.forename: Yajuan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao University of Science and Technology, Qingdao, People's Republic of China.
authors.forename: Shenghao
authors.initials: S
authors.lastname: Xu
authors.affiliation: Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, People's Republic of China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Tie
authors.affiliation: College of Chemistry and Engineering, Zhengzhou University, People's Republic of China.
authors.forename: Nan
authors.initials: N
authors.lastname: Wang
authors.affiliation: College of Chemistry and Engineering, Zhengzhou University, People's Republic of China.
authors.forename: Zhanhang
authors.initials: Z
authors.lastname: He
authors.affiliation: Zhengzhou Tobacco Research Institute, CNTC, Zhengzhou, People's Republic of China.
authors.forename: Pingping
authors.initials: P
authors.lastname: Liu
authors.affiliation: Zhengzhou Tobacco Research Institute, CNTC, Zhengzhou, People's Republic of China.
authors.forename: Huina
authors.initials: H
authors.lastname: Zhou
mesh_terms: D003300:Copper / Q000032:analysis*; D005453:Fluorescence; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D044367:Phase Transition; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D006046:Gold; D003300:Copper
keywords: Cu2+ detection; electrostatically induced phase transfer; fluorescent Au nanoclusters; water samples