期刊
NANOMATERIALS
卷 7, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/nano7100314
关键词
poly(ethileneimine) iron oxide hybrid nanoparticles; hydrothermal synthesis; drug release; mesenchymal stem cells; tumor cells
类别
资金
- Romanian-Swiss Research Program [IZERZ0-142141]
- Romanian Ministry of Education and Research [PCCA-1-THERION 79/2012, PN-II-RU-TE-2014-4-1614]
- Romanian Academy
- Structural Funds Project-HighPTMet [253/28.09.2010]
- Swiss National Science Foundation (SNF) [IZERZ0_142141] Funding Source: Swiss National Science Foundation (SNF)
Nanoparticles (NPs) have a high potential for biological applications as they can be used as carriers for the controlled release of bioactive factors. Here we focused on poly(ethylenimine) (PEI)-coated iron oxide hybrid NPs obtained by hydrothermal synthesis in high pressure conditions and evaluated their behavior in culture medium in the presence or absence of cells, as well as their ability to incorporate antitumor drug cisplatin. Our results showed that the hydrothermal conditions used for Fe-PEI NPs synthesis allowed the incorporation of cisplatin, which even increased its anti-tumor effects. Furthermore, the commonly occurring phenomenon of NPs aggregation in culture medium was exploited for further entrapment of other active molecules, such as the fluorescent dye DiI and valinomycin. The molecules bound to NPs during synthesis or during aggregation process were delivered inside various cells after in vitro and in vivo direct contact between cells and NPs and their biological activity was preserved, thus supporting the therapeutic value of Fe-PEI NPs as drug delivery tools.
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