Optical Detection of Immune Complexes Using Colloidal Gold Nanoparticles


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Abstract

The possibility of detecting the formation of immune complexes with the use of antibodies labeled with colloidal gold nanoparticles and optical spectroscopy is considered. Changes in the spectral characteristics of sols of gold nanoparticles with diameters of 15, 60, and 90 nm conjugated with immunoglobulins in the presence of especially dangerous infectious agents are recorded and analyzed. The data obtained indicate that the developed methodological approach to optical detection of immune complexes may be promising for creating immunochemical methods of identification of infectious agents.

About the authors

A. N. Spitsyn

Russian Antiplague Research Institute Microbe

Author for correspondence.
Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410005

D. V. Utkin

Russian Antiplague Research Institute Microbe

Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410005

M. N. Kireev

Russian Antiplague Research Institute Microbe

Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410005

N. A. Sharapova

Russian Antiplague Research Institute Microbe

Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410005

P. S. Erokhin

Russian Antiplague Research Institute Microbe

Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410005

V. G. Germanchuk

Russian Antiplague Research Institute Microbe

Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410005

V. I. Kochubey

Chernyshevsky Saratov National Research State University; National Research Tomsk State University

Email: rusrapi@microbe.ru
Russian Federation, Saratov, 410012; Tomsk, 634050

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