Fig. 2
From: Inactivation of mammalian spermatozoa on the exposure of TiO2 nanorods deposited with noble metals
Nanoparticle attachment to TiO2 NRs as determined by electron microscopy. A TEM images of (a) silver (Ag) nanoparticle-loaded TiO2 NRs and (b) gold (Au) nanoparticle-loaded TiO2 NRs. Dotted circles show Ag and Au nanoparticles on the surfaces of TiO2 NRs. (c) and (d) show respective TEM maps. B High-resolution XPS spectra of Ti 2p, O 1s, Ag 3d, and Au 4f oxidation peaks of (a) bare TiO2 NRs, (b) Ag-loaded TiO2 NRs, and (c) Au-loaded TiO2 NRs