Antimicrobial Application and Assessment of Green Synthesized Silver Nanoparticles Using Aqueous Leaf Extract of Ficus Copiosa

  • David Timi
  • Subramaniyam Gopalakrishnan Department of Applied Sciences, PNG University of Technology, PMB, Lae, Papua New Guinea.
  • Macquin Maino Department of Agriculture, PNG University of Technology, PMB, Lae, PNG.
Keywords: Silver nanoparticles, Antimicrobial Application, Green Synthesis, Ficus copiosa

Abstract

Plant mediated green-synthesized silver nanoparticles (AgNPs) and the bioactivity on pathogenic micro-organisms is discussed. In the present investigation, aqueous leaf extracts of a medicinal plant, Ficus copiosa was utilized to construct AgNPs. The synthesized AgNPs was characterized by Ultraviolet-visible (UV-vis), Fourier Transform-infrared (FT-IR), X-ray Diffraction (XRD) spectrometer and Scanning Electron Microscopy (SEM) analysis. The phytosynthesized AgNPs exhibited comparable antimicrobial activity with two reference antibiotics against five indicator micro-organisms including two gram-positive (G+) bacteria, two gram-negative (G-) bacteria and a Protozoa (Pz). Study of the minimum inhibition concentration shows the two gram-negative bacteria to be more susceptible to AgNPs than the two gram-positive bacteria. The organisms included in the study are namely, B. Subtilis (G+), S. aureus (G+), E. coli (G-), S. pneumonia (G-) and T. vaginalis (Pz). Agar Disc diffusion technique was employed to assess the efficacy of the silver nanoparticles on the micro-organisms.

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Published
2019-12-30
How to Cite
Timi, D., Gopalakrishnan, S., & Maino, M. (2019). Antimicrobial Application and Assessment of Green Synthesized Silver Nanoparticles Using Aqueous Leaf Extract of Ficus Copiosa. Journal of Biomedical Engineering and Medical Imaging, 6(3), 06-15. https://doi.org/10.14738/jbemi.63.7641