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Research Article Open access CC BY 4.0

Medicinal Properties of Cobalt and Copper Nanoparticles Synthesized Using Limonia acidissima Leaf Extract

S. Panicker, A. Mathew, S. Dalvi, M. Chattaraj

Biotechnology Journal International · pp. 36–45 · Published 16 Apr 2024

10.9734/bji/2024/v28i2717

Abstract

Aim: The present investigation was undertaken to synthesize Cobalt and copper nanoparticles (NPs) using Limonia acidissima L. leaf extract and to test their few medicinal properties like antimicrobial antioxidant and anti-diabetic activities. Methodology: Limonia acidissima plant leaves were collected from the vicinity of the College and the study was completed in 11 months. The hot aqueous leaf extract and soxhlet extract using ethyl acetate as solvent were prepared. Phytochemical analysis of the leaf extract showed the presence of Tannins, Flavonoids, Alkaloids and absence of Phenols. The leaf extract was then used to make Cobalt and copper nanoparticles (NPs) using Cobalt acetate and Copper sulphate respectively.  Results: The formation of NPs was checked by color change and confirmed with UV–visible spectrophotometry. The typical peaks of Co-NPs were detected in the range of maximum wavelength between 380-520 nm and that for Cu NPs was detected between 260-580 nm. The antimicrobial activity of the synthesized NPs of both metal oxides was then tested against Gram positive and Gram negative bacteria and also against two Candida sps. Cobalt NPs exhibited strong antimicrobial activity against all tested organisms but Copper NPs showed no antimicrobial activity. The both NPs were also tested for antioxidant and anti-diabetic properties. Comparatively the Copper NPs possessed higher antioxidant and anti-diabetic activity than the cobalt nanoparticles. Conclusion: Thus, this underutilized plant from India can be further exploited for more medicinal properties and bring it into pharmaceutical usage.

Limonia acidissima nanoparticles antimicrobial antioxidant anti-diabetic

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