A new nanocomposite optical sensor based on polyurethane foam and gold nanorods for solid-phase spectroscopic determination of catecholamines

被引：9
|
作者：
Gorbunova, Maria, V [1 ]
Apyari, Vladimir V. [1 ]
Zolotov, Ivan I. [1 ]
Dmitrienko, Stanislava G. [1 ]
Garshev, Alexey, V [1 ,2 ]
Volkov, Pavel A. [3 ]
Bochenkov, Vladimir E. [1 ]
机构：
[1] Lomonosov Moscow State Univ, Dept Chem, Leninskie Gory 1-3, Moscow 119991, Russia
[2] Lomonosov Moscow State Univ, Fac Mat Sci, Leninskie Gory 1-73, Moscow 119991, Russia
[3] Natl Res Ctr, Kurchatov Inst, Sci Res Inst Chem Reagents & Special Pur Chem, Bogorodsky Val 3, Moscow 107076, Russia
来源：
GOLD BULLETIN | 2019年 / 52卷 / 3-4期
基金：
俄罗斯科学基金会;
关键词：
Au nanorods; Polyurethane foam; Nanocomposite; Catecholamines; Surface plasmon resonance; Solid-phase spectroscopy; AGGREGATION COLORIMETRIC SENSOR; SILVER NANOPARTICLES;
D O I：
10.1007/s13404-019-00267-9
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A new nanocomposite material based on gold nanorods and polyurethane foam was obtained, and a method for the determination of catecholamines with the use of this nanocomposite modified with silver nitrate was developed. The determination is based on the measuring hypsochromic shift of a short-wave surface plasmon resonance band in a diffuse reflection spectrum of the nanocomposite. This shift is caused by reduction of silver from silver ions on the surface of gold nanorods under the influence of catecholamines. Effects of time, pH, volume of the reaction mixture, concentration of silver ions, and catecholamines on the interaction were examined. The proposed method allows to determine dobutamine, epinephrine, norepinephrine and dopamine with the detection limits of 0.1, 0.07, 0.07, and 0.05 mu g mL(-1), respectively. The developed method can be applied to analysis of medicines.
引用
收藏
页码：115 / 124
页数：10
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