Electrospun porous films doped with the green-synthesized CdSe quantum dots were synthesized. Glycerol was chosen to prepare the quantum dots （ QDs）, with the highest quantum yield of 78.28%. Polycaprolactone （PCL...Electrospun porous films doped with the green-synthesized CdSe quantum dots were synthesized. Glycerol was chosen to prepare the quantum dots （ QDs）, with the highest quantum yield of 78.28%. Polycaprolactone （PCL） was electrospun with CdSe QDs to avoid the QDs＇ toxicity and improve the QDs＇ cytocompatibility. The electrospun QDs-doped films preserve the original QDs＇ fluorescence. Pores can be detected from the SEM of the films, predicting the possibility of loading drugs in the cancer therapy. The cell proliferation assay shows excellent cytocompatibility of the eletrospun CdSe-QDs-doped films. The present eletrospun CdSe- QDs-doped porous films are cytocompatibale, highly-fluorescent and ootential to load drugs in cancer therapy.展开更多
Eu2＋-doped oxyapatite SrxLalo-x （SiO4）6O3-x/2 phosphors are prepared by sofid-state reaction at high temper- atures under reducing atmosphere. Their crystal structures and photoluminescenee are investigated by x-ra...Eu2＋-doped oxyapatite SrxLalo-x （SiO4）6O3-x/2 phosphors are prepared by sofid-state reaction at high temper- atures under reducing atmosphere. Their crystal structures and photoluminescenee are investigated by x-ray diffraction （XRD） and fluorescence spectroscopy, respectively. The XlZtD results indicate that the samples are pure oxyapatite phase （P63/m space group）. The fluorescence spectra show two peaks corresponding to two sites （4f and 6h sites） for Eu2＋ in the host lattice. As the Eu2＋ content influences the intensity ratio of the two observed emission peaks, the photoluminescence mechanism is discussed.展开更多
基金Shanghai Leading Academic Discipline Project,China，Shanghai Key Laboratory Project,China，Doctoral Fund of Ministry of Education of China，National Natural Science Foundation of China
文摘Electrospun porous films doped with the green-synthesized CdSe quantum dots were synthesized. Glycerol was chosen to prepare the quantum dots （ QDs）, with the highest quantum yield of 78.28%. Polycaprolactone （PCL） was electrospun with CdSe QDs to avoid the QDs＇ toxicity and improve the QDs＇ cytocompatibility. The electrospun QDs-doped films preserve the original QDs＇ fluorescence. Pores can be detected from the SEM of the films, predicting the possibility of loading drugs in the cancer therapy. The cell proliferation assay shows excellent cytocompatibility of the eletrospun CdSe-QDs-doped films. The present eletrospun CdSe- QDs-doped porous films are cytocompatibale, highly-fluorescent and ootential to load drugs in cancer therapy.
文摘Eu2＋-doped oxyapatite SrxLalo-x （SiO4）6O3-x/2 phosphors are prepared by sofid-state reaction at high temper- atures under reducing atmosphere. Their crystal structures and photoluminescenee are investigated by x-ray diffraction （XRD） and fluorescence spectroscopy, respectively. The XlZtD results indicate that the samples are pure oxyapatite phase （P63/m space group）. The fluorescence spectra show two peaks corresponding to two sites （4f and 6h sites） for Eu2＋ in the host lattice. As the Eu2＋ content influences the intensity ratio of the two observed emission peaks, the photoluminescence mechanism is discussed.
