Study on surface plasmon line broadening due to protein adsorption on a modified silver surface

Using a surface plasmon (SP) technique we have studied the adsorption of human serum albumin and immunoglobulin G on a modified silver surface. We have found that the SP line is broadening dependent on the amount of adsorbed protein. The optical parameters, thickness and surface concentration of pro...

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Bibliographic Details
Published in:Optics communications 1993-03, Vol.97 (1), p.19-24
Main Authors: Silin, V.I., Balchytis, G.A., Yakovlev, V.A.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
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Summary:Using a surface plasmon (SP) technique we have studied the adsorption of human serum albumin and immunoglobulin G on a modified silver surface. We have found that the SP line is broadening dependent on the amount of adsorbed protein. The optical parameters, thickness and surface concentration of proteins were calculated from experimental data. The correlation between the imaginary parts of refractive indices and the roughness of molecular layers was determined.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(93)90610-H