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.
- Journal
- Chemical Communications
- Volume
- 49
- Issue
- 6
- Year
- 2013
- Start Page
- 624-626
- URL
- https://dx.doi.org/10.1039/c2cc37529j
- ISBN/ISSN
- 1364-548X; 1359-7345
- DOI
- 10.1039/c2cc37529j