Studies on influence of polymer modifiers for fluorescent nanocrystals' cytotoxicity
PBN-AR
Instytucja
Wydział Chemiczny (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Pharmaceutical and Biomedical Analysis
ISSN
0731-7085
EISSN
Wydawca
Elsevier BV
DOI
Rok publikacji
2016
Numer zeszytu
Current trends in bioanalysis - In Honour of Professor Roman Kaliszan
Strony od-do
193-201
Numer tomu
127
Identyfikator DOI
Liczba arkuszy
0.5
Słowa kluczowe
en
Quantum dots; Cytotoxicity; Polymer coating; Hyperbranched polymer
Streszczenia
Język
en
Treść
The presented studies aimed at investigation of the effect of CdSeS/ZnS quantum dots (QDs) stabilized with hyperbranched polyglycidol and its carboxylated derivative on adenocarcinomic human alveolar basal epithelial cells (A549). The first stage of studies concerned the modification of quantum dots with both types of the tested polymers with the use of pyridine as an intermediate agent. Subsequently, cytotoxic effect of the prepared nanoparticles was examined after various incubation time using MTT test (cell metabolic activity assay). Our studies revealed that CdSeS/ZnS with a diameter of 6nm, which were stabilized with hyperbranched polymers do not penetrate into cells, even after prolonged incubation time. Moreover, the cytotoxic effect of the tested QDs was observed over a range of tested concentrations (5-90μM of Cd(2+)). It was confirmed that tested nanoparticles had significant influence on cell culture viability. The examined cytotoxic effect of the tested quantum dots was dependent on the type of polymer applied and the experiments indicated, that the one bearing carboxylic moieties is more toxic to A549 cells.
Inne
System-identifier
WUT91e443378e4d4494b5cd4e7642510603
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