摘要
In this study, we report a novel and facile autoclave strategy for synthesis of near-infrared （NIR） CulnS2 QDs by employing glutathione （GSH） as capping ligand and stabilizer in aqueous media under 100 ~C. Various experi- mental parameters including the ratio of precursors, reaction time, reaction temperature, pH effect and stability have been systematically studied. The QDs were characterized by X-ray diffraction （XRD）, transmission electron micro- scope （TEM）, and Fourier transform infrared spectroscopy （FT-IR）. The as-synthesized NIR QDs exhibited low cytotoxicity and maintained excellent cell viability even up to 100 gg/mL. After bioconjugation with Arg-Gly-Asp （RGD） peptide, the obtained CulnS2-RGD QDs have demonstrated high targeting ability with good fluorescence cell imaging performance.
In this study, we report a novel and facile autoclave strategy for synthesis of near-infrared （NIR） CulnS2 QDs by employing glutathione （GSH） as capping ligand and stabilizer in aqueous media under 100 ~C. Various experi- mental parameters including the ratio of precursors, reaction time, reaction temperature, pH effect and stability have been systematically studied. The QDs were characterized by X-ray diffraction （XRD）, transmission electron micro- scope （TEM）, and Fourier transform infrared spectroscopy （FT-IR）. The as-synthesized NIR QDs exhibited low cytotoxicity and maintained excellent cell viability even up to 100 gg/mL. After bioconjugation with Arg-Gly-Asp （RGD） peptide, the obtained CulnS2-RGD QDs have demonstrated high targeting ability with good fluorescence cell imaging performance.
