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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.
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Interaction Between Polyurethane Microplastics and Ciprofloxacin: A Study on Adsorption Behaviour and Ecological Implications
AI summary Read the abstract
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.
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.
The Sorption of Amoxicillin on Engineered Polyethylene Terephthalate Microplastics
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Aged PET microplastics derived from beach-collected bottles adsorbed significantly more amoxicillin antibiotic than unaged lab-produced microplastics due to increased surface area and hydrogen bonding interactions between the antibiotic and polymer ester groups. These findings confirm that weathered microplastics act as vectors for antibiotic transport in aquatic environments, potentially spreading pharmaceutical contamination far from its original source.
On the Influence of Environmental Conditions on Microplastic Sorption Dynamics and Mechanisms of Pharmaceuticals in Aquatic Ecosystems
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This review examines how environmental conditions — including temperature, pH, salinity, and dissolved organic matter — influence the dynamics and mechanisms by which microplastics sorb pharmaceutical pollutants in aquatic ecosystems. Microplastics acting as carriers for pharmaceutical compounds create combined exposure risks for aquatic organisms and humans, as pharmaceuticals sorbed to microplastics can be ingested together and may have synergistic toxic effects.
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.
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