Influence of annealing temperature on the cytotoxicity upconversion nanoparticles on different cell lines - Verkhovskii, Roman A.; Anisimov, R. A.; Lomova, Maria V.; Tuchina, Daria K.; Lazareva, Ekaterina N.; Doronkina, A. A.; Mylnikov, A. M.; Navolokin, Nikita A.; Kochubey, Vyacheslav I.; Yanina, Irina Yu (Proceedings of SPIE)