Synthesis of core-shell Cu@NaGdF4:Yb:Tm nanoparticles for upconversionbioimaging

摘要

Current research in fluorescence bio-imaging is explored m second infrared region (NIR-II, 700-1400 nm) because of its advantages such as deep tissue penetration, lower photo-damage, and negligible tissue scattering [1]. New research is going on high luminescent material in NIR-II window which does not contain toxic ions. The probe which can image and cure the cancer is required. In the present study, we synthesized core-shell Cu@NaGdF4:Yb:Tm nanoparticles by a single-step hot injection method. The growth morphology was compared with nude NaGdF4:Yb:Er nanoparticles synthesized by thermal decomposition method. The nanocomposites growth morphology was compared with NaGdF4:Yb:Er nanoparticles synthesized by thermal decomposition.