Synthesis of type II/type I CdTe/CdS/ZnS quantum dots and their use in cellular imagingElectronic supplementary information (ESI) available: TEM images of CdTe, CdTe/CdS and CdTe/CdS/ZnS and further images of labelling experiments. See DOI: 10.1039/b913292a

Water-soluble, stable quantum dots consisting of a CdTe core with shells of CdS and ZnS have been prepared using a simple successive injection of precursors in one-pot technique. The particles exhibited type II behaviour and were successfully used in imaging HeLa cells. [ABSTRACT FROM AUTHOR]