Biosynthesis of Silver Nanoparticles Using Acacia Leucophloea Extract and Their Antibacterial Activity

Overview

Journal Int J Nanomedicine

Publisher Dove Medical Press

Specialty Biotechnology

Date 2014 May 31

PMID 24876776

Citations 34

Authors

Kasi Murugan

Balakrishnan Senthilkumar

Duraisamy Senbagam

Saleh Al-Sohaibani

Affiliations

Soon will be listed here.

Abstract

The immense potential of nanobiotechnology makes it an intensely researched field in modern medicine. Green nanomaterial synthesis techniques for medicinal applications are desired because of their biocompatibility and lack of toxic byproducts. We report the toxic byproducts free phytosynthesis of stable silver nanoparticles (AgNPs) using the bark extract of the traditional medicinal plant Acacia leucophloea (Fabaceae). Visual observation, ultraviolet-visible spectroscopy, and transmission electron microscopy (TEM) were used to characterize the synthesized AgNPs. The visible yellow-brown color formation and surface plasmon resonance at 440 nm indicates the biosynthesis of AgNP. The TEM images show polydisperse, mostly spherical AgNP particles of 17-29 nm. Fourier transform infrared spectroscopy revealed that primary amines, aldehyde/ketone, aromatic, azo, and nitro compounds of the A. leucophloea extract may participate in the bioreduction and capping of the formed AgNPs. X-ray diffraction confirmed the crystallinity of the AgNPs. The in vitro agar well diffusion method confirmed the potential antibacterial activity of the plant extract and synthesized AgNPs against the common bacterial pathogens Staphylococcus aureus (MTCC 737), Bacillus cereus (MTCC 1272), Listeria monocytogenes (MTCC 657), and Shigella flexneri (MTCC 1475). This research combines the inherent antimicrobial activity of silver metals with the A. leucophloea extract, yielding antibacterial activity-enhanced AgNPs. This new biomimetic approach using traditional medicinal plant (A. leucophloea) barks to synthesize biocompatible antibacterial AgNPs could easily be scaled up for additional biomedical applications. These polydisperse AgNPs green-synthesized via A. leucophloea bark extract can readily be used in many applications not requiring high uniformity in particle size or shape.

Citing Articles

Suppression of Root Rot Fungal Diseases in Common Beans ( L.) through the Application of Biologically Synthesized Silver Nanoparticles.

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Macrofungal Mediated Biosynthesis of Silver Nanoparticles and Evaluation of Its Antibacterial and Wound-Healing Efficacy.

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Green Route Synthesis and Characterization Techniques of Silver Nanoparticles and Their Biological Adeptness.

Sharma N, Vishwakarma J, Rai S, Alomar T, AlMasoud N, Bhattarai A ACS Omega. 2022; 7(31):27004-27020.

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Biogenic Silver Nanoparticles as a Stress Alleviator in Plants: A Mechanistic Overview.

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