Biosynthesis of silver nanoparticles: Elucidation of prospective mechanism and therapeutic potential

J Colloid Interface Sci. 2014 Feb 1:415:39-47. doi: 10.1016/j.jcis.2013.10.018. Epub 2013 Oct 22.

Abstract

The synthesis of silver nanoparticles (AgNPs) was accomplished using Syzygium cumini fruit extract at room temperature. Various techniques were used to characterize the newly synthesized silver nanoparticles and their size was determined to be 10-15nm. Important findings of this study were the identification of biomolecules responsible for the synthesis of silver nanoparticles and elucidate the mechanism of biosynthesis. Flavonoids present in S. cumini were mainly responsible for the reduction and the stabilization of nanoparticles. The antioxidant properties of AgNPs were evaluated using various assays. The nanoparticles were also found to destroy Dalton lymphoma cell lines under in vitro condition. Silver nanoparticles (100μg/mL) decreased the viability of Dalton lymphoma (DL) cell lines up to 50%. The studies describing the biosynthesis of silver nanoparticles by fruit extract followed by the investigation of synthesis mechanism and anti-cancer activities may be useful for nanobiotechnology research opening a new arena in this field.

Keywords: Anti-cancer activity; Biological synthesis; Mechanism of nanoparticle biosynthesis; Nanoparticles; Silver.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents, Phytogenic / biosynthesis*
  • Antineoplastic Agents, Phytogenic / isolation & purification
  • Antineoplastic Agents, Phytogenic / pharmacology
  • Antioxidants / isolation & purification
  • Antioxidants / metabolism*
  • Antioxidants / pharmacology
  • Biphenyl Compounds / antagonists & inhibitors
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Flavonoids / chemistry
  • Flavonoids / immunology
  • Fruit / chemistry
  • Humans
  • Inhibitory Concentration 50
  • Lymphoma, T-Cell
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure
  • Mice
  • Mice, Inbred BALB C
  • Microscopy, Electron, Transmission
  • Neoplasms, Experimental / drug therapy*
  • Neoplasms, Experimental / pathology
  • Oxidation-Reduction
  • Picrates / antagonists & inhibitors
  • Plant Extracts / biosynthesis*
  • Plant Extracts / isolation & purification
  • Plant Extracts / pharmacology
  • Silver / chemistry*
  • Silver / pharmacology
  • Spectroscopy, Fourier Transform Infrared
  • Syzygium / chemistry*

Substances

  • Antineoplastic Agents, Phytogenic
  • Antioxidants
  • Biphenyl Compounds
  • Flavonoids
  • Picrates
  • Plant Extracts
  • Silver
  • 1,1-diphenyl-2-picrylhydrazyl