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Dendritic porous SnO2/SiO2@polymer nanospheres for pH-controlled styptic drug release
Na Cao,Xin Xie,Yu Zhang,Yanbao Zhao,Liuqin Cao,Lei Sun 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.34 No.-
Dendritic porous tin oxide/silica (DTS) nanospheres (NSs) were prepared by emulsion-condensationroute. DTS NSs have an average diameter of 80 nm and possess accessible center-radial large porechannels, which endow them high surface area, less drug diffusion resistance and more mass transport. SnO2 quantum dots (QDs) embedded in silica skeleton can be used to track the drug release behavior. DTS NSs were coated by chitosan/polymethacrylic acid and polymer shell would make them achievegreat loading capacity and pH-sensitive release for aminomethylbenzoic acid (AMBA).