Researchers Developed Eco-Friendly Nanoparticles from Plant Waste

Figure 1:. Flowchart summarizing the contents of the study, showing the bimetallic nanoparticle synthesis method and the subsequent physico-chemical characterization as well as antimicrobial activity experiments.

In the quest for sustainable solutions, this research focused on the green synthesis of nanoparticles, emphasizing the valorization of plant waste. "Our study aims to contribute to a circular economy by transforming agricultural waste into valuable materials," stated Jana Michailidu, the corresponding author of the study. "The use of Cannabis sativa and Vitis vinifera waste not only addresses waste management challenges but also provides an effective method to combat microbial infections."

The research involved extracting bioactive compounds from the scrap materials from these plants, which were then mixed with silver nitrate and tetrachloroauric acid to produce bimetallic nanoparticles (AgAuNPs). These nanoparticles were characterized using various advanced techniques such as UV-Vis spectrophotometry, transmission electron microscopy, and X-ray diffraction. The study highlighted that these nanoparticles exhibited significant antimicrobial activity against several strains of Pseudomonas aeruginosa, a notorious Gram-negative bacterium.

"The antimicrobial properties of the biosynthesized AgAuNPs are particularly promising," Michailidu explained. "They not only inhibit the growth of Pseudomonas aeruginosa but also prevent biofilm formation, which is crucial in the fight against antibiotic-resistant infections."

The study's findings emphasize the dual benefits of this approach: effective waste management and the production of valuable antimicrobial agents. "This research supports the development of eco-friendly and cost-effective approaches for nanoparticle production, addressing both environmental and public health challenges," Michailidu added.

The successful synthesis and characterization of these nanoparticles mark a significant step forward in sustainable nanotechnology. The University of Chemistry and Technology in Prague continues to lead in innovative research that aligns with global sustainability goals.

Text is based on the research article:

Bimetallic nanoparticle production using Cannabis sativa and Vitis vinifera waste extracts