Biogenic synthesis of iron oxide nanoparticles via Skimmia laureola and their antibacterial efficacy against bacterial wilt pathogen Ralstonia solanacearum

Materials Science & Engineering. C, Materials for Biological Applications
Tariq AlamMohammad Ali

Abstract

Plant diseases are threat to global food security. The excessive use of agrochemicals is the leading cause of pesticides resistance and toxicity to beneficial life forms. The quest for innocuous and alternate antimicrobial agent is crucial in order to overcome the pathogen resistance and the birth of nanotech offers pledge to combat pathogenic organisms. In this study, a facile benign biogenic approach was adopted for the synthesis of biocompatible iron oxide nanoparticles (Fe2O3-NPs) via Skimmia laureola leaf extract and the synthesized nanoparticles were evaluated for their antibacterial efficacy against bacterial wilt pathogen Ralstonia solanacearum in vitro and in planta. Physico-chemical characterization of the synthesized nanoparticles was performed through UV-Visible spectroscopy, Fourier Transform Infrared Spectroscopy, X-Ray Diffraction, Energy Dispersive X-ray Spectroscopy and Scanning Electron Microscopy. The results revealed polydisperse nanoparticles in the size range of 56 nm to 350 nm. The culture media containing 6 mg/mL of Fe2O3-NPs dramatically inhibited the bacterial growth in vitro. Scanning electron microscopy revealed degenerative characteristics including degraded, shriveled and concentrated cell walls. D...Continue Reading

Citations

May 8, 2020·Biological Trace Element Research·Salem S Salem, Amr Fouda
Aug 14, 2020·Canadian Journal of Microbiology·Shikha Kapil, Vipasha Sharma
Jun 27, 2020·International Journal of Pharmaceutics·Edouard Alphandéry
Oct 27, 2021·Advanced Drug Delivery Reviews·Sajid AsgharThierry F Vandamme

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