Quenching effect of nickel ions on fluorescent gold nanoparticles

被引：22

作者：

Zheng, Hu-Zhi ^{[1
]}

Liu, Li ^{[1
]}

Zhang, Zhu-Jun ^{[1
]}

Huang, Yu-Ming ^{[1
]}

Zhou, Dong-Bo ^{[1
]}

Hao, Jian-Yu ^{[1
]}

Lu, Yi-Hui ^{[1
]}

Chen, Su-Ming ^{[1
]}

机构：

[1] Southwest Univ, Coll Chem & Chem Engn, Minist Educ,Chongqing Municipal Key Lab Luminesce, Key Lab Luminescence & Real Time Anal, Chongqing 400715, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2009年 / 71卷 / 05期

关键词：

Fluorescent gold nanoparticles; Nickel ions; Quench; BOVINE SERUM-ALBUMIN; QUANTUM DOTS; INFRARED LUMINESCENCE; CLUSTERS; PHOTOLUMINESCENCE; NANOCRYSTALS; METAL; BSA;

D O I：

10.1016/j.saa.2008.06.040

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Herein, we reported the quenching effect of Ni(2+) 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-Ni(2+) complex were measured at different temperatures. Under optimum conditions, the fluorescence intensity of BSA-GNPs is linearly proportional to nickel concentration from 6.0 x 10(-8) mol/L to 8.0 x 10(-1) mol/L with a detection limit of 1.0 x 10(-1) mol/L The result indicated that BSA-GNP was a potential Ni(2+) probe. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1795 / 1798

页数：4

共 24 条

[1] Near-infrared luminescence from small gold nanocrystals [J].