Mechanochemical approach for the capping of mixed core CdS/ZnS nanocrystals: Elimination of cadmium toxicity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00179906%3A_____%2F17%3A10331396" target="_blank" >RIV/00179906:_____/17:10331396 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jcis.2016.09.033" target="_blank" >http://dx.doi.org/10.1016/j.jcis.2016.09.033</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcis.2016.09.033" target="_blank" >10.1016/j.jcis.2016.09.033</a>
Alternative languages
Result language
angličtina
Original language name
Mechanochemical approach for the capping of mixed core CdS/ZnS nanocrystals: Elimination of cadmium toxicity
Original language description
The wet mechanochemical procedure for the capping of the CdS and CdS/ZnS quantum dot nanocrystals is reported. L-cysteine and polyvinylpyrrolidone (PVP) were used as capping agents. When using L-cysteine, the dissolution of cadmium(II) was almost none for CdS/ZnS nanocrystals. Moreover, prepared CdS- and CdS/ZnS-cysteine nanosuspensions exhibited unimodal particle size distributions with very good stability, which was further supported by the zeta potential measurements. The Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopy showed the successful embedment of cysteine into the structure of the nanocrystals. Additionally, the optical properties were examined, and the results showed that the cysteine nanosuspension has promising fluorescence properties. On the other hand, PVP was not determined to be a very suitable capping agent for the present system. In this case, the release of cadmium(II) was higher in comparison to the L-cysteine capped samples. The nanosuspensions were successfully used for in vitro studies on selected cancer cell lines. Using fluorescence microscopy, it was evidenced that the nanocrystals enter the cell and that they can serve as imaging agents in biomedical applications. (C) 2016 Published by Elsevier Inc.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Colloid and Interface Science
ISSN
0021-9797
e-ISSN
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Volume of the periodical
486
Issue of the periodical within the volume
January
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
97-111
UT code for WoS article
000387097100011
EID of the result in the Scopus database
2-s2.0-84989199309