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Adsorption Behaviors of Triclosan by Non-Biodegradable and Biodegradable Microplastics:Kinetics and Mechanism
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Adsorption behaviors and mechanisms of azithromycin on degradable and non-degradable microplastics aged with UV/sodium percarbonate
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Scientists found that when microplastics (both regular plastic and "eco-friendly" biodegradable plastic) get weathered by sunlight and cleaning chemicals used in wastewater treatment, their surfaces become rougher and chemically altered, making them up to 4 times better at soaking up azithromycin, a common antibiotic that surged in use during COVID-19. This matters because these antibiotic-loaded microplastics could act as carriers, potentially transporting drugs through water systems and the environment in ways that aren't fully understood yet, including possibly contributing to antibiotic resistance or human exposure down the line.
Investigation of the Adsorption of Norfloxacin by Biodegradable and Non-biodegradable Microplastics Aged by Chemical Oxidation
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Researchers chemically aged three types of microplastics—biodegradable PLA, PET, and polypropylene—and found that aging significantly increased their capacity to adsorb norfloxacin antibiotic, with aged PLA showing the greatest enhancement due to increased surface area and roughness. These results show that environmentally weathered microplastics act as more effective vectors for antibiotic transport in water systems, potentially worsening co-contamination risks for aquatic life and human health.
Adsorption of Tylosin and Tetracycline onto Microplastics: Behavior and Effects of Adsorbents and Salinity
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Batch adsorption experiments showed that polyethylene, polystyrene, and PVC microplastics can adsorb the antibiotics tylosin and tetracycline, with PVC showing the highest adsorption capacity and salinity enhancing tylosin uptake through a salting-out effect. This confirms that environmental microplastics act as mobile carriers for antibiotic pollutants, potentially spreading antimicrobial resistance to new ecosystems and amplifying the health risks of plastic pollution.
Interaction Between Polyurethane Microplastics and Ciprofloxacin: A Study on Adsorption Behaviour and Ecological Implications
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Polyurethane microplastics adsorb the antibiotic ciprofloxacin, creating combined pollutant complexes with potential ecological implications for aquatic environments. This interaction highlights how microplastics can serve as carriers for toxic co-contaminants, amplifying environmental risks beyond what either pollutant poses alone.
Interaction Between Polyurethane Microplastics and Ciprofloxacin: A Study on Adsorption Behaviour and Ecological Implications
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Polyurethane microplastics demonstrate significant adsorption capacity for the antibiotic ciprofloxacin, suggesting that plastic particles in aquatic environments can act as vectors for pharmaceutical pollutants. This interaction raises ecological concerns about the combined toxicity of microplastic-antibiotic complexes in waterways and their potential impacts on aquatic organisms and antimicrobial resistance.
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