Journal of Luminescence, volume 134, pages 448-455
Probing the sensitive and selective luminescent detection of peroxynitrite using thiol-capped CdTe and CdTe@ZnS quantum dots
Publication type: Journal Article
Publication date: 2013-03-01
Journal:
Journal of Luminescence
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 3.6
ISSN: 00222313
General Chemistry
Biochemistry
Biophysics
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
CdTe and CdTe@ZnS quantum dots (QDs) capped with 3-mercaptopropionic acid (MPA), thioglycolic acid (TGA), or glutathione (GSH) have been employed for the first time as luminescent probes for the sensitive and selective detection of peroxynitrite (ONOO − ) in aqueous solution. The sensitivity of the proposed probe followed the order: MPA– TGA –CdTe@ZnS>GSH– TGA –CdTe@ZnS>MPA–CdTe QDs. The varying degree of quenching is elucidated based on the QD–thiolate bond of CdTe@ZnS being more sensitive to oxidation from ONOO − than CdTe. The selectivity of the probe in the presence of co-existing species followed the order: GSH– TGA –CdTe@ZnS>MPA– TGA –CdTe@ZnS>MPA–CdTe QDs. QDs capped with MPA showed less selectivity for ONOO − than GSH. The best limit of detection (LOD) of 12.6 nM was obtained for MPA– TGA –CdTe@ZnS QDs. Time-resolved fluorescence measurements indicated that the interaction between ONOO − and the QDs is static in nature.
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Citations by publishers
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1 publication, 2.27%
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1 publication, 2.27%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Adegoke O., Nyokong T. Probing the sensitive and selective luminescent detection of peroxynitrite using thiol-capped CdTe and CdTe@ZnS quantum dots // Journal of Luminescence. 2013. Vol. 134. pp. 448-455.
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Adegoke O., Nyokong T. Probing the sensitive and selective luminescent detection of peroxynitrite using thiol-capped CdTe and CdTe@ZnS quantum dots // Journal of Luminescence. 2013. Vol. 134. pp. 448-455.
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TY - JOUR
DO - 10.1016/j.jlumin.2012.08.002
UR - https://doi.org/10.1016/j.jlumin.2012.08.002
TI - Probing the sensitive and selective luminescent detection of peroxynitrite using thiol-capped CdTe and CdTe@ZnS quantum dots
T2 - Journal of Luminescence
AU - Adegoke, Oluwasesan
AU - Nyokong, Tebello
PY - 2013
DA - 2013/03/01 00:00:00
PB - Elsevier
SP - 448-455
VL - 134
SN - 0022-2313
ER -
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@article{2013_Adegoke,
author = {Oluwasesan Adegoke and Tebello Nyokong},
title = {Probing the sensitive and selective luminescent detection of peroxynitrite using thiol-capped CdTe and CdTe@ZnS quantum dots},
journal = {Journal of Luminescence},
year = {2013},
volume = {134},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016/j.jlumin.2012.08.002},
pages = {448--455},
doi = {10.1016/j.jlumin.2012.08.002}
}