Studies on influence of polymer modifiers for fluorescent nanocrystals' cytotoxicity
Ilona Grabowska-Jadach , Marcin Drozd , Joanna Biegała , Mariusz Pietrzak , Marta Mazurkiewicz-Pawlicka , Paweł Parzuchowski , Zbigniew Brzózka
AbstractThe 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.
|Journal series||Journal of Pharmaceutical and Biomedical Analysis, ISSN 0731-7085|
|No||Current trends in bioanalysis - In Honour of Professor Roman Kaliszan|
|Publication size in sheets||0.5|
|Keywords in English||Quantum dots; Cytotoxicity; Polymer coating; Hyperbranched polymer|
|Score|| = 35.0, 28-11-2017, ArticleFromJournal|
= 35.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2016 = 3.255 (2) - 2016=2.953 (5)|
|Citation count*||0 (2016-09-14)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.