HeLa Cells with Titanium Dioxide Nanoparticles (image) Georgia Institute of Technology Share Print E-Mail Caption Image shows HeLa cells incubated for 24 hours with serum-coated TiO2 nanoparticles (proteins are tagged with a red fluorophore). Cell nuclei are stained with DAPI (blue). Credit Credit: Georgia Tech Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.