Prague Team’s Niosome Breakthrough Targets Stubborn Biofilms

In the ever-evolving landscape of antibacterial therapies, a groundbreaking study published in *Small Science* (translated from Czech as *Small Science*) is making waves. Researchers from the University of Chemistry and Technology Prague have successfully encapsulated bacteriophages within niosomes, a type of nanovesicle, potentially revolutionizing the delivery of these viral agents against bacterial infections. The lead author, Ashley Hannah George, and her team have opened new avenues for treating stubborn bacterial infections, particularly in sectors like energy where biofilms can cause significant issues.

Bacteriophages, or phages, are viruses that infect and replicate within bacteria, making them a promising tool in the fight against antibiotic-resistant bacteria. However, delivering these phages effectively has been a challenge. Enter niosomes—vesicular nanocarriers known for their versatility in delivering a range of therapeutic agents. George and her team explored the encapsulation of phages within niosomes, a feat that could enhance the stability and targeted delivery of these viral agents.

The researchers prepared niosome formulations with varying concentrations of stearylamine, a cationic cosurfactant, to optimize the interaction between phages and the vesicular membranes. “We wanted to understand how different concentrations of stearylamine would affect the stability of the niosomes and the encapsulation efficiency of the phages,” George explained. Through dynamic light scattering, zeta potential analysis, and viral titration, they characterized the niosomes, determining the optimal stearylamine concentration for successful phage encapsulation. Cryo-electron microscopy confirmed the encapsulation, providing a visual testament to their success.

The stability and activity of the encapsulated phages were further evaluated through pH stability tests and in vitro kinetic assays. The results were promising, demonstrating that niosomes could indeed serve as effective carriers for bacteriophage delivery. This breakthrough could have significant implications for industries like energy, where bacterial biofilms can cause corrosion and contamination in pipelines and equipment. “The potential to deliver phages more effectively could lead to more efficient and targeted treatments, reducing downtime and maintenance costs in industrial settings,” George noted.

The study highlights the broader applicability of niosomes for encapsulating unconventional or sensitive therapeutic agents, offering a promising strategy for antibacterial applications. As the world grapples with the rise of antibiotic-resistant bacteria, this research could pave the way for innovative solutions in both medical and industrial contexts. The findings, published in *Small Science*, underscore the importance of interdisciplinary research in addressing global health and industrial challenges.

In the energy sector, where bacterial biofilms can lead to costly inefficiencies, the ability to deliver phages effectively could be a game-changer. By encapsulating phages within niosomes, industries could potentially reduce the impact of bacterial contamination, leading to more sustainable and efficient operations. As George and her team continue to explore the potential of this technology, the future of antibacterial therapies looks increasingly bright.

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