Optical properties of metal nanoparticles and nanoparticle aggregates important in biosensors

A. A. Lazarides, K. Lance Kelly, T. R. Jensen, George C Schatz

Research output: Contribution to journalArticlepeer-review

125 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalJournal of Molecular Structure: THEOCHEM
Publication statusPublished - Sep 8 2000


  • Biosensor
  • Effective medium approximation
  • Electrodynamics
  • Extinction spectrum
  • Nanoparticle

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Computational Theory and Mathematics
  • Atomic and Molecular Physics, and Optics

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