Efficient infrared-emitting PbS quantum dots grown on DNA and stable in aqueous solution and blood plasma

被引：103

作者：

Levina, L

Sukhovatkin, W

Musikhin, S

Cauchi, S

Nisman, R

Bazett-Jones, DP

Sargent, EH

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

[2] Hosp Sick Children, Cell Biol Programme, Toronto, ON M5G 1X8, Canada

来源：

ADVANCED MATERIALS | 2005年 / 17卷 / 15期

关键词：

D O I：

10.1002/adma.200401197

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The synthesis of efficient photoluminescent quantum dots via growth on a DNA template is reported for the first time. The nanoparticles emit in the second biological window of 1.050-1200 nm with quantum efficiencies of 11.5 +/- 1% in aqueous solution, and are stable for over a week in blood plasma at 37 degrees C. The Figure shows an energy-filtered TEM image of PbS nanocrystals (Pb: orange; P in DNA: green).

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页码：1854 / +

页数：5

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