Silica coated quantum dots:: a new tool for electrochemical and optical glucose detection

被引：35

作者：

Cavaliere-Jaricot, Sara ^{[1
]}

Darbandi, Masih ^{[1
]}

Kucur, Erol ^{[1
]}

Nann, Thomas ^{[2
]}

机构：

[1] Univ Freiburg, Freiburg Mat Res Ctr, D-791047 Freiburg, Germany

[2] Univ E Anglia, Sch Chem Sci & Pharm, Norwich NR4 7TJ, Norfolk, England

来源：

MICROCHIMICA ACTA | 2008年 / 160卷 / 03期

关键词：

silica coated quantum dots; cyclic voltammetry; glucose oxidation; nanotechnology; photoluminescence;

D O I：

10.1007/s00604-007-0795-y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of silica coated quantum dots (QDs@SiO2) in glucose detection in combination with glucose oxidase is reported. The high specific surface area of such particles can be exploited to immobilise a greater amount of the enzyme on a modified electrode. In addition to this electrochemical method, we report here an indirect optical technique based on the photoluminescence quenching of QDs by hydrogen peroxide produced during glucose oxidation. The results obtained with these two different detection methodologies are compared.

引用

页码：375 / 383

页数：9

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