Interaction of Red Blood Cells with Fumed SiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>/SiO<sub>2</sub> and TiO<sub>2</sub>/SiO<sub>2</sub> by Light Scattering Measurements
Abstract
The interaction of human red blood cells (RBCs) with fumed silica and fumed X/SiO2 (X = Al2O3, TiO2) at different concentrations of X oxide was studied by flow cytometry and photon correlation spectroscopy. The light scattering of RBCs affected by oxides in conjunction with the hemolysis degree showed that mixed oxides (X/SiO2), in general, had less membranotoxic effect than pure silica. The interaction of RBCs with fumed silica and other mixed oxides is a convenient model to examine membranotoxicity and biocompatibility of disperse materials. Flow cytometry and photon correlation spectroscopy are informative methods to study the mechanism of hemolysis induced by solid micro- or nanoparticles.References
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