Cadmium-free quantum dots as time-gated bioimaging probes in highly-autofluorescent human breast cancer cells
by Mandal, Gopa; Darragh, Molly; Wang, Y. Andrew; Heyes, Colin D.
We report cadmium-free, biocompatible (Zn)CuInS2 quantum dots with long fluorescence lifetimes as superior bioimaging probes using time-gated detection to suppress cell autofluorescence and improve the signal : background ratio by an order of magnitude. These results will be important for developing non-toxic fluorescence imaging probes for ultrasensitive biomedical diagnostics.
- Chemical Communications
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