[19a-F306-1~12] 12.7 Biomedical Engineering and Biochips

▼ [19a-F306-4] Synthesis of core-shell Cu@NaGdF₄:Yb:Tm nanoparticles for upconversion bioimaging

〇(DC)MohamedMatharSahib IbrahimKhaleelullah^1,2, Keohei Sugimoto¹, Asahi Tanaka¹, Wataru Inami^1,2, Yoshimasa Kawata^1,2, Yosuke Shimura², Yasuhiro Hayakawa^1,2 (1.GSST, Shizuoka Univ, 2.RIE, Shizuoka Univ)

Keywords:Upconversion, Core-shell, bioimaging

Advanced researches were carried out on low dimension with high luminescent material in NIR-II window which does not contain toxic ions. In the present study, we synthesized core-shell Cu@NaGdF₄:Yb:Tm nanoparticles in a single-step hot injection method. The nanocomposites growth morphology was compared with NaGdF₄:Yb:Tm nanoparticles synthesized by thermal decomposition. Crystallinity, morphology and photoluminescence of synthesized core-shell nanoparticles were analyzed in X-ray diffraction, transmission electron microscope and upconversion luminescence spectrum. The synthesis of 15 nm core and 48 nm core-shell compounds were confirmed in TEM and the photoluminescence showed the emission in the second near infrared region (NIR II)