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
Yu-San Liu
1
,
YingHua Sun
1
,
P. Thomas Vernier
1
,
Chi-Hui Liang
1
,
Suet Ying Christin Chong
1
,
Martin A. Gundersen
1
Publication type: Journal Article
Publication date: 2007-02-01
Journal:
Journal of Physical Chemistry C
Q1
Q3
SJR: 0.957
CiteScore: 6.5
Impact factor: 3.3
ISSN: 19327447, 19327455
PubMed ID:
18985164
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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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.
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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.
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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 - Vernier, P. Thomas
AU - Liang, Chi-Hui
AU - Chong, Suet Ying Christin
AU - Gundersen, Martin A.
PY - 2007
DA - 2007/02/01
PB - American Chemical Society (ACS)
SP - 2872-2878
IS - 7
VL - 111
PMID - 18985164
SN - 1932-7447
SN - 1932-7455
ER -
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@article{2007_Liu,
author = {Yu-San Liu and YingHua Sun and P. Thomas Vernier and Chi-Hui Liang and Suet Ying Christin Chong 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}
}
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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.