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- W3213946075 abstract "Photothermal material was one of the hot topics in nanomedicine in recent years, which had aroused widespread attention of scholars. In this paper, a kind of core-shell drug nanocarriers with good photothermal properties were prepared, and its photothermal therapeutic effect on tumor cells in vitro was studied. First, fluorescein isothiocyanate (FITC) was encapsulated in silica nanoparticles to form silica fluorescent (F-SiO2) nanoparticles. Then mesoporous dopamine (MPDA) layer were built on the F-SiO2 nanoparticles, the core-shell nanoparticles (F-SiO2@MPDA) with mesoporous shell structure were obtained. Finally, Au nanoparticles (AuNPs) were wrapped on the surface of the layer of MPDA shell by the citrate reduction method, and the F-SiO2@MPDA-AuNPs composite nanoparticles were formed. Then, the fluorescence property, adsorption performance, sustained release property, photothermal property and cytotoxicity of the F-SiO2@MPDA-AuNPs nanoparticles were researched. It was found that F-SiO2@MPDA-AuNPs nanoparticles had good fluorescence performance, high adsorption capacity (DOX, 111.275 mg/g) and pH responsive release performance. When pH = 5.2, the DOX release rate was 39.5% within 7 h under the action of near-infrared light (NIR). In addition, it also had a high photothermal conversion rate (36.95%), and the DOX loaded F-SiO2@MPDA-AuNPs nanoparticles had obvious inhibitory effect on tumor cells in vitro. As a kind of mesoporous drug nanocarriers with photothermal properties, it has potential application value." @default.
- W3213946075 created "2021-11-22" @default.
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- W3213946075 date "2022-01-01" @default.
- W3213946075 modified "2023-10-15" @default.
- W3213946075 title "Preparation and properties study of F-SiO2@MPDA-AuNPs drug nanocarriers" @default.
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- W3213946075 doi "https://doi.org/10.1016/j.micromeso.2021.111571" @default.
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