Protein-directed in situ synthesis of platinum nanoparticles with superior peroxidase-like activity, and their use for photometric determination of hydrogen peroxide

被引：42

作者：

Chen, Lijian ^{[1
]}

Wang, Nan ^{[1
]}

Wang, Xindong ^{[1
]}

Ai, Shiyun ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China

来源：

MICROCHIMICA ACTA | 2013年 / 180卷 / 15-16期

基金：

中国国家自然科学基金;

关键词：

Bovine serum albumin; In situ synthesis; Platinum nanoparticles; Colorimetric detection; RESONANCE RAYLEIGH-SCATTERING; SHAPE-CONTROLLED SYNTHESIS; GOLD; ENHANCEMENT; MIMICS; AG;

D O I：

10.1007/s00604-013-1068-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Platinum nanoparticles (Pt-NPs) with sizes in the range from 10 to 30 nm were synthesized using protein-directed one-pot reduction. The model globular protein bovine serum albumin (BSA) was exploited as the template, and the resulting BSA/Pt-NPs were studied by transmission electron microscopy, energy dispersive X-ray spectroscopy, and resonance Rayleigh scattering spectroscopy. The modified nanoparticles display a peroxidase-like activity that was exploited in a rapid method for the colorimetric determination of hydrogen peroxide which can be detected in the 50 mu M to 3 mM concentration range. The limit of detection is 7.9 mu M, and the lowest concentration that can be visually detected is 200 mu M.

引用

页码：1517 / 1522

页数：6

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