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In vitro studies of interaction of modified silica nanoparticles with different types of immunocompetent cells

✍ Scribed by Galina A. Kulikova; Elena V. Parfenyuk; Irina V. Ryabinina; Yuliya S. Antsiferova; Nataliya Yu. Sotnikova; Lubov V. Posiseeva; Mariya A. Eliseeva

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
394 KB
Volume
95A
Category
Article
ISSN
1549-3296

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✦ Synopsis

Abstract

Interactions between different types of immune cells and organically‐modified silica nanoparticles were studied. The silica particles functionalized with amine groups were prepared by sol–gel technique. Sheep immunoglobulin labeled with fluoresceine isothiocyanate was immobilized by adsorption onto the nanoparticles. The presence of the functional groups was confirmed by infrared absorption measurements. The level of immunocompetent cells interacting with the silica nanoparticles was estimated as the amount of fluorescence‐bright cells by flow cytometry method. A low level of interaction of the peripheral blood lymphocytes with the silica nanoparticles was found. On the contrary, the macrophages are actively involved in interaction with the silica nanoparticles. The influence of different size of the silica nanoparticles and incubation time on viability and functional activity of peripheral blood lymphocytes and peritoneal macrophages were investigated. © 2010 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2010.

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