Honey-Based and Ultrasonic-Assisted Synthesis of Silver Nanoparticles and Their Antibacterial Activities

Food materials and biomolecular hosting the preparation of nanomaterials has achieved considerable attention in recent years. This work demonstrates a facile, rapid, low cost, and environmentally preparation of colloidal silver nanoparticles (Ag-NPs) under ultrasonic irradiation temperature using natural honey as a capping and reducing agent. The effect of the Ag+ concentration, reducing agent, and ultrasonic time in synthesis of Ag-NPs has been investigated. Well-defined spherical Ag-NPs with a mean particle size of about 11.8 nm have been prepared due to the ultrasonic process. The use of honey as a food capping/stabilizing and reducing agent provides green attributes to this study. Ag-NPs capped by honey biomolecules exhibited antibacterial activity against pathogenic bacteria. This suggested method is general and can be extended to other noble metals, such as gold, palladium, and copper and may possibly find various additional application from medicine to industry.