Optical properties of metal nanoparticles and nanoparticle aggregates important in biosensors

被引：118

作者：

Lazarides, AA ^{[1
]}

Kelly, KL ^{[1
]}

Jensen, TR ^{[1
]}

Schatz, GC ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

来源：

JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM | 2000年 / 529卷

关键词：

electrodynamics; nanoparticle; biosensor; effective medium approximation; extinction spectrum;

D O I：

10.1016/S0166-1280(00)00532-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This article describes recent advances in electrodynamics theory that are being used to describe the extinction spectra of noble metal nanoparticles and of aggregates of nanoparticles. In one application we have extended the finite element discrete dipole approximation theory to the description of nonspherical metal particles, including the substrate on which they are sitting. In another application, we have developed a new dynamic effective medium approximation for the description of aggregates of spherical gold nanoparticles that are linked using DNA. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：59 / 63

页数：5

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