Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1234971 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2009 | 4 Pages |
Abstract
Herein, we reported the quenching effect of Ni2+ on bovine serum albumin protected fluorescent gold nanoparticles (BSA-GNPs). The quenching mechanism was discussed and a static quenching mechanism was proposed. The number of binding sites (n), apparent stability constants (K) and corresponding thermodynamic parameters of BSA-GNPs-Ni2+ complex were measured at different temperatures. Under optimum conditions, the fluorescence intensity of BSA-GNPs is linearly proportional to nickel concentration from 6.0 × 10−8 mol/L to 8.0 × 10−6 mol/L with a detection limit of 1.0 × 10−8 mol/L. The result indicated that BSA-GNP was a potential Ni2+ probe.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Hu-Zhi Zheng, Li Liu, Zhu-Jun Zhang, Yu-Ming Huang, Dong-Bo Zhou, Jian-Yu Hao, Yi-Hui Lu, Su-Ming Chen,