Quantum Plasmonics: Optical Monitoring of DNA-Mediated Charge Transfer in Plasmon Rulers

被引：44

作者：

Lerch, Sarah ^{[1
,2
]}

Reinhard, Bjoern M. ^{[1
,2
]}

机构：

[1] Boston Univ, Dept Chem, 590 Commonwealth Ave, Boston, MA 02215 USA

[2] Boston Univ, Photon Ctr, Boston, MA 02215 USA

来源：

ADVANCED MATERIALS | 2016年 / 28卷 / 10期

基金：

美国国家卫生研究院;

关键词：

ELECTRON-TRANSFER; GOLD; TRANSPORT; DISTANCE; DIMERS; SIZE; NANOPARTICLES; CALIBRATION; RESONANCES; REGIME;

D O I：

10.1002/adma.201503885

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Plasmon coupling between DNA-tethered gold nanoparticles is investigated by correlated single-particle spectroscopy and transmission electron microscopy for interparticle separations between 0.5 and 41 nm. Spectral characterization reveals a weakening of the plasmon coupling due to DNA-mediated charge transfer for separations up to 2.8 nm. Electromagnetic simulations indicate a coherent charge transfer across the DNA.

引用

页码：2030 / +

页数：8

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