Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China.
J Colloid Interface Sci. 2012 Dec 15;388(1):86-91. doi: 10.1016/j.jcis.2012.08.016. Epub 2012 Aug 23.
Monodisperse CdTe composite microspheres with a spherical shape were prepared using organosilane chemicals in aqueous solution. CdTe nanocrystals (NCs) were loaded into the matrix of silica microspheres during the formation of composite microspheres. Detailed characterization of the CdTe composite microspheres by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and spectrofluorimeter was performed to elucidate the morphology and fluorescence of the composite microspheres. In contrast to CdTe NCs in aqueous solution, CdTe NCs in the composite microspheres revealed high stability and fluorescence due to the confined effects of silica matrix. In addition, multicolored CdTe QDs were encoded into the microspheres at precise ratios.
采用有机硅烷化学试剂在水溶液中制备了具有球形的单分散 CdTe 复合微球。CdTe 纳米晶体 (NCs) 在复合微球形成过程中被负载到二氧化硅微球的基质中。通过扫描电子显微镜 (SEM)、透射电子显微镜 (TEM) 和荧光分光光度计对 CdTe 复合微球进行了详细的表征，以阐明复合微球的形态和荧光性质。与水溶液中的 CdTe NCs 相比，由于受到二氧化硅基质的限制效应，复合微球中的 CdTe NCs 表现出较高的稳定性和荧光强度。此外，还可以将多色 CdTe QDs 以精确的比例编码到微球中。
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