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In Vitro and In Vivo Evaluation of rPET/Cu-Alg Nanofibers for Anti-Infective Therapy
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Researchers developed wound dressing nanofibers from recycled PET plastic bottles, functionalized with copper-enhanced alginate for antimicrobial properties. Testing showed the materials effectively prevented bacterial growth and biofilm formation while remaining safe for living tissue in both lab and animal studies. The study demonstrates a promising way to repurpose plastic waste into valuable medical materials that could help fight wound infections.
With the growing interest in nanofibers and the urgent need to address environmental concerns associated with plastic waste, there is an increasing focus on using recycled materials to develop advanced healthcare solutions. This study explores the potential of recycled poly(ethylene terephthalate) (PET) nanofibers, functionalized with copper-enhanced alginate, for applications in wound dressings. Nanofibers with desirable antimicrobial properties were developed using chemical recycling and electrospinning techniques, offering a sustainable and effective option for managing wound infections and promoting healing. SEM and FT-IR analyses confirmed that the obtained nanofibers possess optimal physicochemical properties, including well-organized morphology, appropriate dimensions, and structural integrity. Biological evaluations revealed significant antimicrobial activity, with the materials effectively inhibiting microbial adherence and biofilm formation while maintaining good biocompatibility in both in vitro and in vivo studies. These findings highlight the potential of recycled PET-based nanofibers as advanced wound dressing materials to reduce infection risks and support tissue regeneration in clinical applications.
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Repurposing polyethylene terephthalate (PET) waste as an antibacterial packaging material
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Researchers repurposed PET plastic waste by integrating antimicrobial agents during reprocessing, creating antibacterial packaging material from recycled PET that inhibits bacterial growth — demonstrating a circular economy approach that adds functional value to plastic waste.
Catalytic Amounts of an Antibacterial Monomer Enable the Upcycling of Poly(Ethylene Terephthalate) Waste
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Scientists developed a new method to recycle PET plastic waste (commonly used in bottles) into high-value antibacterial material using only small amounts of a special monomer. This approach addresses both plastic pollution and the need for antimicrobial materials, while avoiding the biotoxicity problems of traditional metal-based antibacterial agents. The technique represents a promising way to upcycle plastic waste rather than simply discarding it.
Preparation of simple biodegradable, nontoxic, and antimicrobial PHB/PU/CuO bionanocomposites for safely use as bioplastic material packaging
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Researchers developed biodegradable films from polyhydroxybutyrate (PHB) extracted from microalgae combined with polyurethane and copper oxide nanoparticles for use as bioplastic packaging. The films showed antimicrobial activity against multiple pathogens, no cytotoxic effects on human cells, and improved mechanical and surface properties with CuO nanoparticle loading.
Multifunctional Alginate Composite Fibers Based on Pre-Crosslinked Spinning Solutions
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Scientists have created a new type of fiber made from seaweed extract (alginate) and titanium dioxide nanoparticles that's strong, biodegradable, and could replace plastic-based textiles—offering a potential way to cut down on microplastic pollution. As a bonus, these fibers can break down formaldehyde (a chemical found in some fabrics and furniture that can irritate lungs and eyes) and resist catching fire, making them promising for healthier, safer textiles in homes.
Synergistic dual-crosslinking and in situ silver functionalization for high-strength, photothermal, and antibacterial microfibrillated cellulose/alginate composite fibers
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Scientists engineered a plant-based fiber from cellulose and seaweed extract that's stronger than typical biodegradable materials and could replace some plastics that pollute our environment and break down into microplastics. By adding silver nanoparticles, the fiber also heats up under infrared light and kills over 97% of common bacteria like E. coli and staph, making it promising for wound dressings or antibacterial textiles. This matters because it points toward sustainable alternatives to plastic that don't sacrifice performance or safety.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.