Nickel Oxide Nanoparticles via Green Synthesis: Insights into Antimicrobial, Antifungal and Dye Degradation Potentials

The study utilized Alternanthera sessilis aqueous extract to synthesize nickel oxide nanoparticles (NiONPs) through a simple and cost-effective biological method. The extract, known for its health benefits including promoting hair growth, served as a capping agent to prevent agglomeration. Characterization of NiONPs was performed using photoluminescence and UV-visible spectroscopy, confirming their formation. The nanoparticles demonstrated significant antimicrobial activity against Bacillus subtilis, antifungal activity against Candida albicans, and effective dye-reduction capabilities against Rhodamine B and Methylene Blue, highlighting their potential for various applications.