Rapid green biosynthesis of Silvermontmorillonite nanocomposite using water extract of Satureja hortensis L and evaluation of the antibacterial properties

TL;DR

This study presents a rapid, eco-friendly method to synthesize silver-montmorillonite nanocomposites at room temperature using Satureja hortensis extract, demonstrating effective antibacterial activity against various bacteria.

Contribution

It introduces a novel green biosynthesis approach for silver-montmorillonite nanocomposites utilizing plant extract as a reducing agent, with detailed characterization and antibacterial evaluation.

Findings

Nanocomposite particles ranged from 4.88 to 26.70 nm, averaging 15.79 nm.

The nanocomposite exhibited antibacterial activity against both Gram-positive and Gram-negative bacteria.

Characterization confirmed face-centered cubic structure of silver nanoparticles.

Abstract

In this work, facile, rapid and green biosynthesis and characterization of silvermontmorillonite nanocomposite is reported at room temperature. Silver nanoparticles were prepared by water extract of Satureja hortensis as the reducing agent and MMT as interlamellar space for controlling the size of Ag-NPs. MMT was suspended in the aqueous AgNO3 solution, and after the absorption of silver ions, Ag+ was reduced to Ag0 using water extract of Satureja hortensis. Evaluations of the antibacterial properties are also reported. The nanocomposite was characterized by ultraviolet-visible spectroscopy, powder Xray diffraction, scanning electron microscopy and transmission electron microscopy . TEM study showed the formations of nanocomposite using water extract of Satureja hortensis L in the 4.88-26.70 nm range and an average particles size of 15.79 nm. In addition, XRD study showed that the particles have a face centered cubic structure. The nanocomposite showed antibacterial properties against Gram positive and negative bacteria.