In this work, antimicrobial potential of silver nanoparticles synthesized from
extract of Myrtus communis on different pathogenic bacteria and yeast was
investigated. 10 mL of extract was mixed with 90 mL of 2 mM aqueous AgNO3
and heated at 70 °C for 3 min.
A change from greenish to dark brown color was observed. Characterization using UV-VIS spectrophotometery and X- ray
diffraction analysis were performed. The UV-Vis spectral analysis showed silver
surface plasmon resonance band at 425 nm. X- ray diffraction showed that the
particles were crystalline in nature with face centered cubic structure (FCC) of the
bulk silver with broad beaks at 38.50° and 44.76°.
Antimicrobial activity against six microorganisms was tested using well diffusion method. The synthesized silver
nanoparticles efficiently inhibited various pathogenic organisms in a dosedependent
manner was more pronounced against Gram-positive bacteria than
Gram-negative bacteria. The approach of green synthesis seems to be cost
effective, eco-friendly and easy alternative to conventional methods of silver
nanoparticles synthesis. The powerful bioactivity demonstrated by the synthesized
silver nanoparticles leads towards the clinical use as antimicrobial.
Keywords: Myrtus communis; Silver Nanoparticles; Antimicrobial activity.
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