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- Title
Conjugation of microbial-derived gold nanoparticles to different types of nucleic acids: evaluation of transfection efficiency.
- Authors
Pourali, P.; Dzmitruk, V.; Benada, O.; Svoboda, M.; Benson, V.
- Abstract
In this study, gold nanoparticles produced by eukaryotic cell waste (AuNP), were analyzed as a transfection tool. AuNP were produced by Fusarium oxysporum and analyzed by spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). Fourier transform infrared spectroscopy (FTIR) and dynamic light scattering (DLS) were used before and after conjugation with different nucleic acid (NA) types. Graphite furnace atomic absorption spectroscopy (GF-AAS) was used to determine the AuNP concentration. Conjugation was detected by electrophoresis. Confocal microscopy and quantitative real-time PCR (qPCR) were used to assess transfection. TEM, SEM, and EDS showed 25 nm AuNP with round shape. The amount of AuNP was 3.75 ± 0.2 µg/µL and FTIR proved conjugation of all NA types to AuNP. All the samples had a negative charge of − 36 to − 46 mV. Confocal microscopy confirmed internalization of the ssRNA-AuNP into eukaryotic cells and qPCR confirmed release and activity of carried RNA.
- Subjects
FURNACE atomic absorption spectroscopy; GOLD nanoparticles; NUCLEIC acids; GENE transfection; ENERGY dispersive X-ray spectroscopy; ELECTRON energy loss spectroscopy; CONFOCAL microscopy
- Publication
Scientific Reports, 2023, Vol 13, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-023-41567-7