Biological applications of localised surface plasmonic phenomenae

D. A. Stuart*, A. J. Haes, C. R. Yonzon, E. M. Hicks, R. P. Van Duyne

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

276 Scopus citations

Abstract

Researchers and industrialists have taken advantage of the unusual optical, magnetic, electronic, catalytic, and mechanical properties of nanomaterials. Nanoparticles and nanoscale materials have proven to be useful for biological uses. Nanoscale materials hold a particular interest to those in the biological sciences because they are on the same size scale as biological macromolecules, proteins and nucleic acids. The interactions between biomolecules and nanomaterials have formed the basis for a number of applications including detection, biosensing, cellular and in situ hybridisation labelling, cell tagging and sorting, point-of-care diagnostics, kinetic and binding studies, imaging enhancers, and even as potential therapeutic agents. Noble metal nanoparticles are especially interesting because of their unusual optical properties which arise from their ability to support surface plasmons. In this review the authors focus on biological applications and technologies that utilise two types of related plasmonic phenomonae: localised surface plasmon resonance (LSPR) spectroscopy and surface-enhanced Raman spectroscopy (SERS). The background necessary to understand the application of LSPR and SERS to biological problems is presented and illustrative examples of resonant Rayleigh scattering, refractive index sensing, and SERS-based detection and labelling are discussed.

Original languageEnglish (US)
Pages (from-to)13-32
Number of pages20
JournalIEE Proceedings Nanobiotechnology
Volume152
Issue number1
DOIs
StatePublished - Feb 2005

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Materials Science (miscellaneous)
  • Electrical and Electronic Engineering

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