文献类型：会议论文

英文题名：Highly sensitive fluorescence detection of mercury ion based on Lys VI stabilized gold nanoclusters

作者：Zhou, N.[1];Zhang, P.[1];Zhang, X. X.[1];Shen, G. Z.[1];Fu, R. H.[1];He, L.[1];Chen, Z. M.[1];Ji, H. W.[1];Su, W. M.[2];Li, C. Y.[1,2,3]

机构：[1]Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Guangdong Prov Key Lab Aquat Product Proc & Safet, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Key Lab Adv Proc Aquat Prod Guangdong Higher Educ, Zhanjiang 524088, Peoples R China

会议论文集：3rd Asia-Pacific Conference on Engineering Technology (APCET)

会议日期：MAR 27-30, 2015

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Au nanoclusters; Lys VI; Mercury ions; High selectivity

外文摘要：Au nanoclusters are presented as novel probes for sensitive detection of mercury ions. Au nanoclusters were synthesized by using Lys VI as a template via a convenient chemical reduction process. The as-prepared water-soluble AuNCs with average diameters of 1.6 similar to 1.8 nm exhibit unique fluorescence excitation at 400 nm, maximum emission at 625 nm, and can be quenched in the presence of mercury ions. Excellent linear relationships exist between the fluorescence intensity of the Au nanoclusters and Hg2+ concentrations in the range of 0.1 nM to 1 nM, 0.1 lam to 1 mu M, or 2 mu M to 8 lam, respectively. The detection limit for Hg2+ is 0.1 nM. The present nanosensor for Hg2+ detection possesses excellent biocompatibility, high selectivity, and good stability, which suggest its potential for diagnostic purposes.