Title of article :
Plant‑mediated bio‑synthesis of silver–montmorillonite nanocomposite and antibacterial effects on gram‑positive and ‑negative bacteria
Author/Authors :
Ghiassi, Setareh Department of Chemistry - Faculty of Science - Rasht Branch - Islamic Azad University, Rasht , Sedaghat, Sajjad Department of Chemistry - Faculty of Science - Shahr-e-Qods Branch - Islamic Azad University, Tehran , Mokhtary, Masoud Department of Chemistry - Faculty of Science - Rasht Branch - Islamic Azad University, Rasht , Kefayati, Hassan Department of Chemistry - Faculty of Science - Rasht Branch - Islamic Azad University, Rasht
Abstract :
In this project, facile, rapid biosynthesis and characterization of silver–montmorillonite (MMT) nanocomposite is carried out at
ambient temperature. Silver nanoparticles (Ag-NPs) were prepared by water extract of the plant [Satureja hortensis (L)] as the
reducing agent and MMT as interlamellar space for controlling the size of Ag-NPs. MMT was sonicated in the aqueous AgNO3
solution and Ag+
ions were reduced to Ag° using water extract of Satureja hortensis (L). The nanocomposite was evaluated using
ultraviolet–visible spectroscopy (UV–Vis), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission
electron microscopy (TEM). TEM study showed the formations of nanocomposite using water extract of Satureja hortensis L
in the range of 4.88–26.70 nm and an average particles size of 15.79 nm. In addition, XRD studies indicated that the particles
have a face centred cubic (FCC) structure. The nanocomposite showed antibacterial effects against bacteria.
Keywords :
Antibacterial effects , Montmorillonite , Nanocomposite , Satureja hortensis L , Transmission electron microscopy
Journal title :
Astroparticle Physics
