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| Synthesis and Properties of Core-Shell Structure Ag@BaGdF5: Yb3+, Ho3+ Multifunctional Nanocomposites |
| Author Name | Affiliation | E-mail | | SUI Jing-Ting | Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | | | CHEN Zi-Yu | Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | | | LIU Gui-Xia | Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | liuguixia22@163.com | | SONG Chao | Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | songchaocc@126.com | | DONG Xiang-Ting | Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | |
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| Abstract: Core-shell structure multifunctional Ag@BaGdF5:Yb3+, Ho3+ nanocomposites were prepared by a simple wet method. XRD patterns showed that the nanocomposites consisted of cubic phase Ag and BaGdF5. Electron microscope images indicated that the nanocomposites were spherical shape with the thickness of~14 nm (BaGdF5:Yb3+, Ho3+ as shell) and a diameter of 77 nm (Ag nanoparticles as core). The nanocomposites had good upconversion emission with the strongest green emission centered at about 540 nm from the photoluminescence spectra, which is helpful to apply in intracellular imaging to diagnose lesion. Furthermore, the samples possessed better paramagnetism and photothermal conversion properties. MTT measurement demonstrates that the nanocomposites have better biocompatibility. When incubated with HeLa cells, the nanocomposites had bright green upconversion imaging under 980 nm irradiation. Compared with commercial computed tomography (CT) imaging contrast agent iobitridol, the Ag@BaGdF5:Yb3+, Ho3+ nanocomposites had higher CT imaging properties. The heat converted from the nanocomposites could kill HeLa cells. |
| Keywords: nanostructures fluorescence nanocomposites upconversion |
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| SUI Jing-Ting,CHEN Zi-Yu,LIU Gui-Xia,SONG Chao,DONG Xiang-Ting.Synthesis and Properties of Core-Shell Structure Ag@BaGdF5: Yb3+, Ho3+ Multifunctional Nanocomposites[J].Chinese Journal of Inorganic Chemistry,2019,35(6):987-995. |
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