The chemometric analysis of UV-visible spectra as a new approach to the study of the NaCl influence on aggregation of cysteine-capped gold nanoparticles

被引：22

作者：

Rezanka, Pavel ^{[1
]}

Rezankova, Hana ^{[2
]}

Matejka, Pavel ^{[1
]}

Kral, Vladimir ^{[1
]}

机构：

[1] Prague Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague 6, Czech Republic

[2] Univ Econ, Dept Stat & Probabil, Prague 13067 3, Czech Republic

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2010年 / 364卷 / 1-3期

关键词：

Gold nanoparticles; Cysteine; Sodium chloride; Aggregation; Chemometrics; Statistical analysis; SELECTIVE DETECTION; RECOGNITION; CHEMISTRY; STRATEGY; MODEL; AG;

D O I：

10.1016/j.colsurfa.2010.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Gold nanoparticles synthesized using citrate reduction method were modified by cysteine at various concentrations. The cysteine-capped nanoparticles were analyzed by UV-vis absorption spectroscopy in the presence of various concentrations of sodium chloride. At higher concentration of sodium chloride the aggregation occurred. Measured spectra were analyzed by statistical methods, namely two-step cluster analysis and partial least square regression, to obtain quantitative parameters. It was demonstrated that the surface coverage of nanoparticles and the bulk concentration of both cysteine and sodium chloride can be predicted. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：94 / 98

页数：5

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