Hydrothermal syntheses and characterization of bio-modified TiO2 nanoparticles with Aqua Rosa and Protein powder for their biological applications

TiO2 nanoparticles (NPs) are capable of inhibiting the growth of bacterial strains and are responsible for causing damages to the cancer cells. Pure TiO2, Aqua Rosa-modified TiO2 and protein powder-modified TiO2 NPs are synthesized using hydrothermal method. The particle size is found to be 7.5 nm for pure, 6.5 nm for protein-modified and 5.5 nm for Aqua Rosa-modified TiO2 NPs using TEM analysis. UV spectra shows that the absorption peaks of the modified samples are blue shifted with respect to pure TiO2 nanoparticles. The surface-modified nanoparticles show maximum growth inhibition against the pathogenic organisms. The research experiments exhibited highest anti-cancer activities for the surface modified TiO2 NPs.