Quantum dot photoluminescence lifetime-based pH nanosensor
- 17 January 2011
- journal article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- Vol. 47 (10), 2898-2900
- https://doi.org/10.1039/c0cc05252c
Abstract
The first CdSe/ZnS quantum dot photoluminescence lifetime-based pH nanosensor has been developed. The average lifetime of mercaptopropionic acid-capped QD nanosensors showed a linear response in the pH range of 5.2–6.9. These nanosensors have been satisfactorily applied for pH estimation in simulated intracellular media, with high sensitivity and high selectivity toward most of the intracellular components.Keywords
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