Speakers - 2026

Title: Microwave assisted synthesis of antimicrobial silver nano particles using propolis extracts

Abstract

Silver nanoparticles (AgNPs) biosynthesis using propolis extracts as capping 28 and reducing agents presents multiple opportunities for solving many biological challenges. This study demonstrates sustainable, low toxicity and high production cost phy-30 tochemical synthesis of AgNPs using propolis extracts and microwaves. Biosynthesized 31 with propolis AgNPs are analyzed by various methods–phytochemical, physicochemical, 32 and morphological, such as TEM. The determined antimicrobial and antioxidant activity 33 of propolis extracts is compared with the activity of green synthesized AgNPs with prop-34 olis. The green synthesized AgNPs are spherical shaped with an average size ranging 35 from 6 to 40 nm. The biosynthesized AgNPs demonstrate potential antibacterial activity 36 on tested microorganism strains by two folds higher than pure propolis extracts.

The audience take away from presentation:

• The audience will learn that this study focuses on the green biosynthesis of silver nanoparticles (AgNPs) using propolis extracts as both capping and reducing agents. It highlights that this method is sustainable, low in toxicity, and cost-effective, offering a promising approach for addressing various biological challenges.
• The nanoparticles were synthesized using propolis extracts and microwaves, and their properties were analyzed through phytochemical, physicochemical, and morphological techniques such as Transmission Electron Microscopy (TEM).
• The results show that the green-synthesized AgNPs are spherical in shape, with sizes ranging from 6 to 40 nanometers. Furthermore, the antimicrobial and antioxidant activities of these AgNPs were compared with those of pure propolis extracts, revealing that the synthesized nanoparticles exhibited twice the antibacterial activity of pure propolis. Overall, the paragraph informs readers that propolis-based synthesis provides an efficient and eco-friendly way to produce silver nanoparticles with enhanced biological activities.