A novel route to copper(II) detection using 'click' chemistry-induced aggregation of gold nanoparticles

被引：81

作者：

Hua, Carol ^{[1
]}

Zhang, William H. ^{[1
]}

De Almeida, Swahnnya R. M. ^{[1
]}

Ciampi, Simone ^{[1
]}

Gloria, Danmar ^{[1
]}

Liu, Guozhen ^{[1
]}

Harper, Jason B. ^{[1
]}

Gooding, J. Justin ^{[1
]}

机构：

[1] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia

来源：

ANALYST | 2012年 / 137卷 / 01期

关键词：

SELF-ASSEMBLED MONOLAYERS; TERMINAL ALKYNES; VISUAL DETECTION; L-CYSTEINE; CYCLOADDITION; ELECTRODES; AZIDES; IONS;

D O I：

10.1039/c1an15693d

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple colorimetric method for the detection of copper ions in water is described. This method is based on the 'click' copper(I)-catalyzed azide-alkyne cycloaddition reaction and its use in promoting the aggregation of azide-tagged gold nanoparticles by a dialkyne cross-linker is described. Nanoparticle cross-linking, evidenced as a colour change, is used for the detection of copper ions. The lowest detected concentration by the naked eye was 1.8 mu M, with the response linear with log(concentration) between 1.8-200 mu M. The selectivity relative to other potentially interfering ions was evaluated.

引用

页码：82 / 86

页数：5

共 22 条

[1] Neurodegenerative diseases and oxidative stress [J].

Barnham, KJ ;

Masters, CL ;

Bush, AI .

NATURE REVIEWS DRUG DISCOVERY, 2004, 3 (03) :205-214

[2] Direct determination of cadmium and copper in seawater using a transversely heated graphite furnace atomic absorption spectrometer with Zeeman-effect background corrector [J].

Chan, MS ;

Huang, SD .

TALANTA, 2000, 51 (02) :373-380

[3] CONTROLLED NUCLEATION FOR REGULATION OF PARTICLE-SIZE IN MONODISPERSE GOLD SUSPENSIONS [J].

FRENS, G .

NATURE-PHYSICAL SCIENCE, 1973, 241 (105) :20-22

[4] Environmental copper: Its dynamics and human exposure issues [J].

Georgopoulos, PG ;

Roy, A ;

Yonone-Lioy, MJ ;

Opiekun, RE ;

Lioy, PJ .

JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART B-CRITICAL REVIEWS, 2001, 4 (04) :341-394

[5] Nanoscale Water Condensation on Click-Functionalized Self-Assembled Monolayers [J].

James, Michael ;

Ciampi, Simone ;

Darwish, Tamim A. ;

Hanley, Tracey L. ;

Sylvester, Sven O. ;

Gooding, J. Justin .

LANGMUIR, 2011, 27 (17) :10753-10762

[6]

Kolb HC, 2001, ANGEW CHEM INT EDIT, V40, P2004, DOI 10.1002/1521-3773(20010601)40:11<2004::AID-ANIE2004>3.3.CO

[7]

2-X

[8] Extinction coefficient of gold nanoparticles with different sizes and different capping ligands [J].

Liu, Xiong ;

Atwater, Mark ;

Wang, Jinhai ;

Huo, Qun .

COLLOIDS AND SURFACES B-BIOINTERFACES, 2007, 58 (01) :3-7

[9] Cu-catalyzed azide-alkyne cycloaddition [J].

Meldal, Morten ;

Tornoe, Christian Wenzel .

CHEMICAL REVIEWS, 2008, 108 (08) :2952-3015

[10] Probing single molecules and single nanoparticles by surface-enhanced Raman scattering [J].

Nie, SM ;

Emery, SR .

SCIENCE, 1997, 275 (5303) :1102-1106

← 1 2 3 →