10.1007/s40097-018-0280-7

Plant-mediated bio-synthesis of silver–montmorillonite nanocomposite and antibacterial effects on gram-positive and -negative bacteria

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  • Setareh Ghiassi1,
  • Sajjad Sedaghat*2,
  • Masoud Mokhtary1,
  • Hassan Kefayati1,
  1. Department of Chemistry, Faculty of Science, Rasht Branch, Islamic Azad University, Rasht, IR
  2. Department of Chemistry, Faculty of Science, Shahr-e-Qods Branch, Islamic Azad University, Tehran, IR
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Published in Issue 31-08-2018

How to Cite

Ghiassi, S., Sedaghat, S., Mokhtary, M., & Kefayati, H. (2018). Plant-mediated bio-synthesis of silver–montmorillonite nanocomposite and antibacterial effects on gram-positive and -negative bacteria. Journal of Nanostructure in Chemistry, 8(3 (September 2018). https://doi.org/10.1007/s40097-018-0280-7
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Abstract

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 AgNO 3 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. Graphical abstract

Keywords

  • Antibacterial effects,
  • Montmorillonite,
  • Nanocomposite,
  • Satureja hortensis L,
  • Transmission electron microscopy
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