Graded-bandgap quantum-dot-modified nanotubes: A sensitive biosensor for enhanced detection of DNA hybridization

被引：90

作者：

Feng, Chuan-Liang

Zhong, Xinhua

Steinhart, Martin

Caminade, Anne-Marie

Majoral, Jean-Pierre

Knoll, Wolfgang

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[2] E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

[3] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany

[4] CNRS, Chim Coordinat Lab, F-31077 Toulouse 4, France

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 15期

关键词：

D O I：

10.1002/adma.200602311

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly sensitive detection of DNA hybridization is demonstrated for the functionalized nanotubes (NTs) described here. With a cascaded-energy-transfer architecture produced by depositing, layer-by-layer, three types of ZnxCd1-xSe alloy quantum dots (QDs)-that is, graded-bandgap QDs-into ordered porous alumina membranes (see figure), the NTs provide the ability to detect small but significant changes in the signal during biological detection.

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页码：1933 / +

页数：5

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