New instruments and measurement methods

Surface-enhanced Raman scattering and its application to the study of biological molecules

Work on surface-enhanced Raman scattering (RS) of light by molecules near a metal surface is reviewed. The experimental conditions for obtaining surface-enhanced Raman scattering spectra in different molecule-metal systems are examined. The basic characteristics and mechanisms of the effect are discussed. Special attention is devoted to applications of the method of surface-enhanced Raman scattering spectroscopy for structural-functional study of biological molecules: DNA, proteins, supramolecular complexes. It is pointed out that the large enhancement of the RS cross section makes it possible to reduce the concentration of the substances under study by three orders of magnitude--down to 10$^8$--10$^9$ M. The short range of the enhancement mechanism in some systems makes it possible to obtain Raman scattering spectra for groups of atoms located directly adjacent to the surface of the metal and thereby to study the topography of biological macromolecules and the kinetics of their behavior at an interface. The prospects for applications of enhanced Raman scattering as a new method of vibrational spectroscopy of biopolymers are discussed.

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Fulltext is also available at DOI: 10.1070/PU1988v031n03ABEH005720
PACS: 87.15.Mi, 87.64.Je, 78.30.−j, 33.20.Fb (all)
DOI: 10.1070/PU1988v031n03ABEH005720
Citation: Nabiev I R, Efremov R G, Chumanov G D "Surface-enhanced Raman scattering and its application to the study of biological molecules" Sov. Phys. Usp. 31 241–262 (1988)
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Оригинал: Набиев И Р, Ефремов Р Г, Чуманов Г Д «Гигантское комбинационное рассеяние и его применение к изучению биологических молекул» УФН 154 459–496 (1988); DOI: 10.3367/UFNr.0154.198803d.0459

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