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Cell Biology Commons

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Conference

Physical Sciences and Mathematics

2014

Articles 1 - 1 of 1

Full-Text Articles in Cell Biology

Multiple Approaches To Determine Toxicity Of Micro And Nano-Sized Titanium Dioxide Materials When Exposed To Human Red Blood Cells, Aaron Stella, Shu-Feng Hsieh, Dhimiter Bello, Daniel Schmidt, Eugene Rodgers May 2014

Multiple Approaches To Determine Toxicity Of Micro And Nano-Sized Titanium Dioxide Materials When Exposed To Human Red Blood Cells, Aaron Stella, Shu-Feng Hsieh, Dhimiter Bello, Daniel Schmidt, Eugene Rodgers

UMass Center for Clinical and Translational Science Research Retreat

Introduction: The utility of engineered nanomaterials’ is growing, particularly the titanium dioxide (TiO2) polymorphs. TiO2 is very useful for brightening paints, and coloring foods. Nano-sized TiO2 is also useful for sunscreens, cosmetics, and can be utilized as a photocatalyst. However, the nanometer size and the large specific surface area of the TiO2 materials are physicochemical characteristics which may contribute to human red blood cell (RBC) damage. Using RBCs as a cellular model, we have evaluated the effects of TiO2 nanoparticle exposure to RBCs by quantifying oxidized glutathione, oxidized membrane vitamin E, hemolysis, hemoglobin adsorption, and cellular aggregation. Results: Red blood ...