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Updated: May 14, 2026

Fluorescence Lifetime Imaging of Molecular Rotors in Living Cells
Published on: February 9, 2012
Uptake and processing of semiconductor quantum dots in living cells studied by fluorescence lifetime imaging
1Department of Biomedical Engineering, McGill University, 3775 University Street, Montreal, QC H3A 2B4, Canada.
Abstract:
Carboxylate-terminated and dopamine-conjugated CdSe-ZnS quantum dots (QDs) are imaged in living fibroblasts using fluorescence lifetime imaging microscopy. Changes in lifetime are observed as the QDs are processed in the cells, and are consistent with lifetime measurements in bulk solution using buffers compositions that correspond to different cellular regions.
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