Barium titanate (BaTiO3, BT) was co-doped by solid-state sintering with niobium pentoxide (Nb2O5) and cobalt trioxide (Co3O4) as dopants. The modified barium containing Nb Co (BTNC) larger particle size (0.5–1 μm) silver powder (Ag) smaller (25 nm) were co-filled polyvinylidene fluoride (PVDF) to prepare (BTNC-Ag)/PVDF three-phase composites. morphology crystal structure of composites character...

Abstract Dual labeled contrast agents could provide better complementary information for bioimaging than available solely from a single modality. In this paper we investigate the suitability of Yb3+ and Er3+-doped BaYF5 upconversion nanoparticles (UCNPs) as both optical X-ray micro computed tomography (?CT) agents. Stable, aqueous UCNP dispersions were synthesised using hydrothermal method with...