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Solanum torvum mediated synthesis and characterization of silver nanoparticles for antibacterial activities

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Abstract

The silver nanoparticles (AgNPs) with biogenic synthesis employing plants have been grown to be a promising alternative to the traditional chemical synthesis method. The AgNPs were triumphantly synthesized using Solanum torvum (Turkey berry) fruit extract characterized by UV–Visible spectrum as a consequence of strong surface plasmon resonance peak at 442 nm. The existence of bio-molecules acting as a capping and stabilizing agent in the AgNPs with Solanum torvum was revealed by Fourier transform infrared spectroscopy analysis. X-ray diffraction investigation for the greener route synthesized AgNPs witnessed as face centered cubic crystalline nature along with an average crystalline size of 25 nm. Scanning electron microscope images evidenced that the nanoparticles have an irregular shape of hexagonal morphology and the presence of silver element was depicted in Energy-dispersive X-ray spectroscope profile. The AgNPs were explored against two gram-positive and negative bacteria via antibacterial activity. The results showed that biosynthesized AgNPs have a strong inhibitory effect on bacteria with a more pronounced inhibition against Bacillus subtilis. AgNPs with very high antibacterial activity can also be employed as an efficient material for different medicinal applications.

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Abbreviations

AgNPs:

Silver nanoparticles

SPR:

Surface plasmon resonance

FT-IR:

Fourier transform infrared spectroscopy

XRD:

X-ray diffraction

SEM:

Scanning electron microscope

EDX:

Energy-dispersive X-ray spectroscope

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Correspondence to R. Renuka.

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Renuka, R., Renuka Devi, K., Sivakami, M. et al. Solanum torvum mediated synthesis and characterization of silver nanoparticles for antibacterial activities. J. Plant Biochem. Biotechnol. 30, 596–601 (2021). https://doi.org/10.1007/s13562-021-00650-8

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  • DOI: https://doi.org/10.1007/s13562-021-00650-8

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