Synthesis of Bioactive Nickel Nanoparticles Using Bacterial Strains from an Antarctic Consortium.
Mar Drugs
; 22(2)2024 Feb 14.
Article
in En
| MEDLINE
| ID: mdl-38393060
ABSTRACT
Marine microorganisms have been demonstrated to be an important source for bioactive molecules. In this paper we report the synthesis of Ni nanoparticles (NiSNPs) used as reducing and capping agents for five bacterial strains isolated from an Antarctic marine consortium Marinomonas sp. ef1, Rhodococcus sp. ef1, Pseudomonas sp. ef1, Brevundimonas sp. ef1, and Bacillus sp. ef1. The NiSNPs were characterized by Ultraviolet-visible (UV-vis) spectroscopy, Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopic analysis. The maximum absorbances in the UV-Vis spectra were in the range of 374 nm to 422 nm, corresponding to the Surface plasmon resonance (SPR) of Nickel. DLS revealed NiSNPs with sizes between 40 and 45 nm. All NiSNPs were polycrystalline with a face-centered cubic lattice, as revealed by XRD analyses. The NiSNPs zeta potential values were highly negative. TEM analysis showed that the NiSNPs were either spherical or rod shaped, well segregated, and with a size between 20 and 50 nm. The FTIR spectra revealed peaks of amino acid and protein binding to the NiSNPs. Finally, all the NiSNPs possess significant antimicrobial activity, which may play an important role in the management of infectious diseases affecting human health.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Metal Nanoparticles
/
Anti-Bacterial Agents
Limits:
Humans
Language:
En
Journal:
Mar Drugs
Journal subject:
BIOLOGIA
/
FARMACOLOGIA
Year:
2024
Document type:
Article
Affiliation country:
Italy
Country of publication:
Switzerland