Suppression of Quantum Dot Blinking in DTT-Doped Polymer Films

被引：31

作者：

Antelman, Josh ^{[1
]}

Ebenstein, Yuval ^{[1
]}

Dertinger, Thomas ^{[1
]}

Michalet, Xavier ^{[1
]}

Weiss, Shimon ^{[1
,2
,3
]}

机构：

[1] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Physiol, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, DOE Inst Genom & Prote, Los Angeles, CA 90095 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 27期

关键词：

CADMIUM SELENIDE NANOCRYSTALS; LIGHT-EMITTING-DIODES; SEMICONDUCTOR NANOCRYSTALS; FLUORESCENCE INTERMITTENCY; SINGLE PHOTONS; LIVE CELLS; COLOCALIZATION; PROBES;

D O I：

10.1021/jp811078e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this report we evaluate the emission properties of single quantum dots embedded in a thin, thiol-containing polymer film. We report the suppression of quantum dot blinking leading to a continuous photon flux from both organic and water soluble quantum dots and demonstrate their application as robust fluorescent point sources for ultrahigh resolution localization. In addition, we apply the polymer coating to cell samples immunostained with antibody conjugated QDs and show that fluorescence intensity from the polymer embedded cells shows no sign of degradation after 67 h of continuous excitation. The reported thin polymer film coating may prove advantageous for immuno-cyto/histo-chemistry as well as for the fabrication of quantum dot containing devices requiring a reliable and stable photon source (including a single photon source) or stable charge characteristics while maintaining intimate contact between the quantum dot and the surrounding matrix.

引用

页码：11541 / 11545

页数：5

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