Journal
MOLECULES
Volume 24, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/molecules24224145
Keywords
gold nanoparticles; D407 cells; HFL-1 cells; internalization
Funding
- Ministry of Research and Innovation, CNCS - UEFISCDI within PNCDI III [PN-III-P1-1.1-TE-2016-1907]
- National Research Development Project to Finance Excellence by the Romanian Ministry of Research and Innovation [(PFE)-37/2018-2020]
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Currently, research studies on nanoparticle cytotoxicity, uptake or internalization into the body's cells are of great interest for the improvement of diagnostic and therapeutic applications. We report here the synthesis and characterization of very stable novel warfarin-capped gold nanoparticles with an average diameter of 54 +/- 10 nm which were prepared using sodium warfarin as a reducing agent. The nanoparticles were tested in terms of cytotoxicity and cellular internalization in vitro on two cell lines: normal lung fibroblast HFL-1 and human retinal pigment epithelial D407 cells. Our results showed that the normal lung fibroblast HFL-1 cells were more sensitive to the nanoparticle treatment compared to the human retinal pigment epithelial D407 cells. Moreover, any signs of potential cytotoxicity occurred during the first 24 h of treatment, the cellular viability remaining largely unchanged for longer exposure times. Transmission electron microscopy and dark field hyperspectral imaging revealed that the nanoparticles were effectively delivered and released to the HFL-1 and D407 cells' cytoplasm. Our results provide valuable information to further investigate sodium warfarin-capped gold nanoparticles for possible biological applications.
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