Silver nanoparticles reduced using natural compounds, with applications in plant with Hemileia vastratrix (Roya)

This study focuses on developing an eco-friendly and effective alternative to control coffee rust, a devastating fungal disease. To achieve this, silver nanoparticles (AgNPs) were synthesized using natural compounds present in coffee extract, followed by their application as a fungicide. The characterization of the AgNPs was performed using UV-visible spectroscopy (UV/Vis) to identify the characteristic plasmonic absorption band. Particle size determination was conducted through Dynamic Light Scattering (DLS) and Scanning Electron Microscopy (SEM). Additionally, the reduction of silver atoms (Ag⁰) by the functional groups in the coffee extract was confirmed by analyzing the oxidized functional groups coating the AgNPs, as compared to the extract, using Fourier-Transform Infrared Spectroscopy (FTIR). The results obtained from applying AgNPs to plants qualitatively demonstrate significant progress in the search for sustainable solutions to control crop diseases, highlighting the potential of these materials in combating coffee rust.

کلیدواژه ها:

Synthesis ، Nanoparticles ، Silver ، Hemileia vastratrix (Roya)