Journal of Physical Chemistry C, volume 111, issue 7, pages 2872-2878

pH-Sensitive Photoluminescence of CdSe/ZnSe/ZnS Quantum Dots in Human Ovarian Cancer Cells

Publication typeJournal Article
Publication date2007-02-01
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.7
ISSN19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
The photoluminescence of mercaptoacetic acid (MAA)-capped CdSe/ZnSe/ZnS semiconductor nanocrystal quantum dots (QDs) in SKOV-3 human ovarian cancer cells is pH-dependent, suggesting applications in which QDs serve as intracellular pH sensors. In both fixed and living cells the fluorescence intensity of intracellular MAA-capped QDs (MAA QDs) increases monotonically with increasing pH. The electrophoretic mobility of MAA QDs also increases with pH, indicating an association between surface charging and fluorescence emission. MAA dissociates from the ZnS outer shell at low pH, resulting in aggregation and loss of solubility, and this may also contribute to the MAA QD fluorescence changes observed in the intracellular environment.

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GOST |
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GOST Copy
Liu Y. et al. pH-Sensitive Photoluminescence of CdSe/ZnSe/ZnS Quantum Dots in Human Ovarian Cancer Cells // Journal of Physical Chemistry C. 2007. Vol. 111. No. 7. pp. 2872-2878.
GOST all authors (up to 50) Copy
Liu Y., Sun Y., Vernier P. T., Liang C., Chong S. Y. C., Gundersen M. A. pH-Sensitive Photoluminescence of CdSe/ZnSe/ZnS Quantum Dots in Human Ovarian Cancer Cells // Journal of Physical Chemistry C. 2007. Vol. 111. No. 7. pp. 2872-2878.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/jp0654718
UR - https://doi.org/10.1021/jp0654718
TI - pH-Sensitive Photoluminescence of CdSe/ZnSe/ZnS Quantum Dots in Human Ovarian Cancer Cells
T2 - Journal of Physical Chemistry C
AU - Liu, Yu-San
AU - Sun, YingHua
AU - Liang, Chi-Hui
AU - Chong, Suet Ying Christin
AU - Vernier, P. Thomas
AU - Gundersen, Martin A.
PY - 2007
DA - 2007/02/01 00:00:00
PB - American Chemical Society (ACS)
SP - 2872-2878
IS - 7
VL - 111
SN - 1932-7447
SN - 1932-7455
ER -
BibTex |
Cite this
BibTex Copy
@article{2007_Liu,
author = {Yu-San Liu and YingHua Sun and Chi-Hui Liang and Suet Ying Christin Chong and P. Thomas Vernier and Martin A. Gundersen},
title = {pH-Sensitive Photoluminescence of CdSe/ZnSe/ZnS Quantum Dots in Human Ovarian Cancer Cells},
journal = {Journal of Physical Chemistry C},
year = {2007},
volume = {111},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/jp0654718},
number = {7},
pages = {2872--2878},
doi = {10.1021/jp0654718}
}
MLA
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MLA Copy
Liu, Yu-San, et al. “pH-Sensitive Photoluminescence of CdSe/ZnSe/ZnS Quantum Dots in Human Ovarian Cancer Cells.” Journal of Physical Chemistry C, vol. 111, no. 7, Feb. 2007, pp. 2872-2878. https://doi.org/10.1021/jp0654718.
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