Synthesis of Bioactive Nickel Nanoparticles Using Bacterial Strains from an Antarctic Consortium

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, Rhodoco...

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Bibliographic Details
Published in:Marine Drugs
Main Authors: Joseph Amruthraj Nagoth, Maria Sindhura John, Kesava Priyan Ramasamy, Alessio Mancini, Marco Zannotti, Sara Piras, Rita Giovannetti, Lydia Rathnam, Cristina Miceli, Maria Chiara Biondini, Sandra Pucciarelli
Other Authors: Amruthraj Nagoth, Joseph, Sindhura John, Maria, Priyan Ramasamy, Kesava, Mancini, Alessio, Zannotti, Marco, Piras, Sara, Giovannetti, Rita, Rathnam, Lydia, Miceli, Cristina, Chiara Biondini, Maria, Pucciarelli, Sandra
Format: Article in Journal/Newspaper
Language:English
Published: 2024
Subjects:
Antarctic
Antarc*
Online Access:https://hdl.handle.net/11581/479588
https://doi.org/10.3390/md22020089
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10890439/
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Summary: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.

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