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61,005 resultsShowing papers similar to Sorption of sulfamethoxazole onto six types of microplastics
ClearAdsorption of antibiotics on microplastics
This study examined the adsorption of antibiotics onto different microplastic types, finding that sorption capacity depended on both the antibiotic's chemical properties and the plastic's surface characteristics, with implications for antibiotic transport in aquatic environments.
The sorption kinetics and isotherms of sulfamethoxazole with polyethylene microplastics
The sorption of the antibiotic sulfamethoxazole onto polyethylene microplastics was well described by pseudo-second-order kinetics and Freundlich isotherms, with the process controlled by partitioning into the polymer matrix. The study demonstrates that microplastics can accumulate antibiotics from seawater, raising concerns about contributing to antibiotic resistance through environmental spread of these compounds.
The fate and risk of microplastic and antibiotic sulfamethoxazole coexisting in the environment
Researchers investigated sulfamethoxazole antibiotic adsorption onto polyamide microplastics and found that pH significantly influenced uptake, with adsorbed antibiotics more readily released in natural water than ultrapure water, posing environmental risks.
Sorption properties of tylosin on four different microplastics
This study tested the sorption of the antibiotic tylosin onto four types of microplastics, finding that sorption capacity varied significantly by plastic type, with implications for how microplastics may transport antibiotics through aquatic environments.
The Sword of Damocles: Microplastics and the molecular dynamics of sulfamonomethoxine revealed
Researchers studied how three types of microplastics interact with the antibiotic sulfamonomethoxine in water using molecular dynamics simulations and laboratory experiments. They found that polyamide had the strongest adsorption capacity while polyethylene terephthalate formed the most stable bonds with the antibiotic. The findings help explain how different microplastics can act as carriers for pharmaceutical pollutants in aquatic environments.
New insights into adsorption mechanism of pristine and weathered polyamide microplastics towards hydrophilic organic compounds
Adsorption of four hydrophilic organic compounds including antibiotics sulfamethoxazole and ciprofloxacin onto pristine and weathered polyamide microplastics was studied, finding that weathering introduced oxygen-containing surface groups that significantly altered adsorption capacity and mechanisms. The results improve predictions of how microplastics transport co-occurring pollutants in aquatic environments.
Adsorption of antibiotics on different microplastics (MPs): Behavior and mechanism
Researchers investigated how four common microplastic types adsorb three antibiotics, finding that adsorption follows pseudo-second-order kinetics and Freundlich isotherms, with polymer type and antibiotic structure influencing sorption capacity and mechanism.
Desorption of sulfamethoxazole from polyamide 6 microplastics: Environmental factors, simulated gastrointestinal fluids, and desorption mechanisms
Researchers examined the adsorption of sulfamethoxazole (SMX) onto polyamide 6 microplastics and the desorption behavior under different environmental conditions including simulated seawater, gastric fluid, and intestinal fluid, finding that desorption was significantly higher in gastrointestinal fluids than in aqueous environments. The results suggest that organisms ingesting antibiotic-loaded polyamide microplastics may experience higher internal antibiotic exposure than previously estimated.
Do microplastics affect sulfamethoxazole sorption in soil? Experiments on polymers, ionic strength and fulvic acid
Researchers investigated how microplastics affect the sorption of sulfamethoxazole antibiotic in soil, finding that polystyrene microplastics increased antibiotic adsorption rates but reduced equilibrium adsorption capacity, with ionic strength and fulvic acid further modifying the interaction in complex soil environments.
Sorption of tetracycline antibiotics by microplastics, associated mechanisms, and risk assessments
Researchers systematically investigated how three common microplastic types adsorb tetracycline antibiotics. The study found that polystyrene had the highest adsorption capacity at 178.57 micrograms per gram, followed by PVC and polyethylene, and that PVC and polystyrene strongly retained the antibiotics with minimal desorption, raising concerns about compound pollution from microplastic-antibiotic combinations in the environment.
Investigation of the Adsorption of Sulfamethoxazole by Degradable Microplastics Artificially Aged by Chemical Oxidation
Three types of microplastics were artificially aged by chemical oxidation and then tested for sulfamethoxazole antibiotic adsorption, with results showing that aging increased surface oxidation and enhanced antibiotic sorption capacity.
Sorption of sulfamethazine onto different types of microplastics: A combined experimental and molecular dynamics simulation study
The sorption of sulfamethazine (a veterinary antibiotic) onto different microplastic polymer types was studied through laboratory experiments and molecular dynamics simulations, revealing that sorption kinetics and binding strength varied by polymer type and antibiotic concentration. The findings help predict how microplastics in agricultural waterways contaminated with livestock antibiotics could transport these drugs in the environment.
Implications of polystyrene and polyamide microplastics in the adsorption of sulfonamide antibiotics and their metabolites in water matrices
Researchers found that polystyrene and polyamide microplastics can absorb sulfonamide antibiotics from water, with smaller particles and acidic conditions increasing absorption significantly. This means microplastics in the environment can act as carriers for antibiotics, potentially spreading antimicrobial resistance. The finding raises concerns because people may be exposed to both microplastics and the drugs they carry through contaminated water and food.
Behavior and mechanisms of ciprofloxacin adsorption on aged polylactic acid and polyethlene microplastics
Researchers investigated how aging affects the adsorption of the antibiotic ciprofloxacin on polylactic acid and polyethylene microplastics, finding that aged plastics showed significantly enhanced adsorption capacity due to physicochemical surface changes.
Adsorption of Macrolide Antibiotics and a Metabolite onto Polyethylene Terephthalate and Polyethylene Microplastics in Aquatic Environments
Researchers studied how four macrolide antibiotics and a metabolite adsorb onto polyethylene terephthalate and polyethylene microplastics in water. They found that antibiotic adsorption followed a linear model, with PET showing higher adsorption capacity than polyethylene. The study suggests that microplastics in aquatic environments may serve as carriers for antibiotics, potentially affecting how these pharmaceutical pollutants are distributed in water systems.
Investigation of antibiotic clarithromycin adsorption potential on microplastics
Researchers investigated the adsorption potential of the antibiotic clarithromycin onto various microplastic types under controlled laboratory conditions, examining how surface properties and environmental factors influence pharmaceutical-microplastic interactions. The study found that microplastics can adsorb clarithromycin, raising concern about microplastics acting as vectors for antibiotic transport and spread in aquatic environments.
Microplastics from surgical masks: A piggy-back ride for sulfamethoxazole in the sea
This study found that microplastics derived from surgical masks can act as carriers for the antibiotic sulfamethoxazole in seawater, with the drug adsorbing onto mask-derived plastic particles and potentially increasing its persistence and bioavailability in marine environments.
Adsorption behaviors and mechanisms of antibiotic norfloxacin on degradable and nondegradable microplastics
Researchers investigated how degradable and nondegradable microplastics adsorb the antibiotic norfloxacin, comparing polybutylene succinate with conventional plastics to understand the environmental behavior and interaction mechanisms between these co-occurring pollutants.
Adsorption of levofloxacin by ultraviolet aging microplastics
Researchers studied how ultraviolet aging changes the ability of common microplastics to adsorb the antibiotic levofloxacin. The study found that UV-aged polystyrene, polyamide, and polyethylene microplastics all showed significantly enhanced adsorption capacity compared to their unaged counterparts, suggesting that weathered microplastics in the environment may carry higher pollutant loads.
Sorption and desorption of selected pharmaceuticals by polyethylene microplastics
Researchers tested the sorption and desorption of three pharmaceuticals — sulfamethoxazole, propranolol, and sertraline — onto polyethylene microplastics in water, finding that all three compounds sorbed to the plastic surface and were only partially released over time. The results suggest microplastics can act as vectors for pharmaceutical compounds in aquatic environments, potentially affecting their bioavailability.
Sorption of three common nonsteroidal anti-inflammatory drugs (NSAIDs) to microplastics
This study investigated the adsorption of three common nonsteroidal anti-inflammatory drugs (NSAIDs) onto microplastics, finding that polymer type, drug properties, and environmental conditions all influenced sorption capacity. The results suggest microplastics can act as vectors for pharmaceutical contaminants in aquatic environments.
Adsorption characteristics of antibiotics on microplastics: The effect of surface contamination with an anionic surfactant
Researchers found that the common anionic surfactant SDBS coating polystyrene and polyethylene microplastics significantly altered their adsorption of the antibiotics oxytetracycline and norfloxacin. SDBS changed the surface charge and hydrophobicity of MPs in ways that increased antibiotic binding, suggesting surfactant-contaminated MPs pose a greater risk as antibiotic vectors in aquatic environments.
Sorption behaviour of tebuconazole on microplastics: kinetics, isotherms and influencing factors
Researchers investigated the adsorption of tebuconazole fungicide onto polyamide, polystyrene, and polypropylene microplastics, finding polyamide had the highest sorption capacity and that pH, salinity, and metal presence all significantly affected adsorption. The dominant mechanisms differed by polymer type, with electrostatic and hydrogen bonding governing polyamide and polypropylene while hydrophobic and intermolecular forces dominated polystyrene.
Sorption of selected pharmaceutical compounds on polyethylene microplastics: Roles of pH, aging, and competitive sorption
Researchers found that polyethylene microplastics adsorb pharmaceutical compounds including an antibiotic, a beta-blocker, and an antidepressant, with sorption capacity influenced by pH, aging of the plastic, and competition between compounds — raising concern about microplastics as carriers of pharmaceuticals in aquatic environments.