CSIRO, Materials Science and Engineering, Locked Bag 33, Clayton Sth MDC, VIC 3169, Australia.
Small. 2012 Jan 9;8(1):80-8. doi: 10.1002/smll.201100710. Epub 2011 Oct 19.
The incorporation of highly luminescent core-shell quantum dots (QDs) within a metal-organic framework (MOF) is achieved through a one-pot method. Through appropriate surface functionalization, the QDs are solubilized within MOF-5 growth media. This permits the incorporation of the QDs within the evolving framework during the reaction. The resulting QD@MOF-5 composites are characterized using X-ray fluorescence, cross-sectional confocal microscopy, energy-dispersive X-ray spectroscopy, scanning electron microscopy, and small-angle X-ray scattering. The synergistic combination of luminescent QDs and the controlled porosity of MOF-5 in the QD@MOF-5 composites is harnessed within a prototype molecular sensor that can discriminate on the basis of molecular size.
通过一锅法将高发光核壳量子点(QD)掺入金属有机骨架(MOF)中。通过适当的表面功能化,将 QD 溶解在 MOF-5 生长介质中。这允许在反应过程中将 QD 掺入不断发展的骨架中。使用 X 射线荧光、截面共聚焦显微镜、能量色散 X 射线光谱、扫描电子显微镜和小角 X 射线散射对 QD@MOF-5 复合材料进行了表征。在一个基于分子大小进行区分的原型分子传感器中,利用了 QD@MOF-5 复合材料中发光 QD 和 MOF-5 可控孔隙率的协同组合。