We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Sorption of antibiotics onto aged microplastics in freshwater and seawater
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.
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.
Sorption behavior and mechanism of hydrophilic organic chemicals to virgin and aged microplastics in freshwater and seawater
UV-accelerated aging of polystyrene and PVC microplastics increased surface oxidation and introduced microcracks, and aged MPs showed significantly increased adsorption of the hydrophilic antibiotic ciprofloxacin compared to virgin MPs. The findings demonstrate that even hydrophilic organic chemicals can accumulate on aged microplastics, expanding the range of compounds that microplastics may carry and deliver to organisms.
Interaction between antibiotics and microplastics: Recent advances and perspective
This review examines how microplastics in water can absorb antibiotic pollutants onto their surface, especially as the plastics age and develop bacterial biofilms. This interaction is concerning for human health because microplastics carrying antibiotics could promote antibiotic-resistant bacteria in waterways, making infections harder to treat.
Tetracycline adsorption trajectories on aged polystyrene in a simulated aquatic environment: A mechanistic investigation
Researchers found that aging of polystyrene microplastics in simulated aquatic environments progressively altered their surface properties and enhanced tetracycline antibiotic adsorption over time, with pseudo-second-order kinetics best describing the process, highlighting how weathered microplastics may increase antibiotic transport in aquatic systems.
Quantitative assessment of interactions of hydrophilic organic contaminants with microplastics in natural water environment
Researchers quantified how microplastics interact with common antibiotic pollutants in natural water conditions, comparing virgin and environmentally aged polystyrene particles. They found that aged microplastics absorbed significantly more antibiotics than new ones due to increased surface area and chemical changes from weathering. The study suggests that as microplastics age in the environment, they become more effective at concentrating and transporting other harmful pollutants.
Mechanisms of microplastics sorption of antibiotics and impacts on aquatic ecosystems for sustainable development goals
This review examines how microplastics serve as carriers for antibiotics in aquatic ecosystems through sorption mechanisms including hydrophobic interactions, electrostatic forces, and chemical bonding. The study found that environmental factors like pH, salinity, and organic matter affect how antibiotics bind to microplastics, while weathering processes can transform microplastics into nanoplastics that potentially increase pollutant mobility.
Adsorption characteristics of ciprofloxacin hydrochloride on polystyrene microplastics in freshwater
Researchers studied how polystyrene microplastics adsorb the antibiotic ciprofloxacin in freshwater, comparing pristine and aged particles. They found that aging treatment, particularly Fenton oxidation over seven days, significantly enhanced the adsorption capacity of the microplastics for the antibiotic. The study suggests that as microplastics weather in the environment, they may become increasingly effective carriers of pharmaceutical contaminants in water systems.
Behavior and mechanisms of ciprofloxacin adsorption on aged Polylactic Acid and Polyethylene microplastics
This study examined how aged polylactic acid (PLA) and polyethylene (PE) microplastics absorb the antibiotic ciprofloxacin in water. Aging changes the surface chemistry of microplastics, affecting how they pick up and carry antibiotics — which could deliver higher doses of these drugs to organisms that ingest the particles.
Aging characteristics of degradable and non-biodegradable microplastics and their adsorption mechanism for sulfonamides
Researchers investigated how aging processes affect the ability of degradable and non-biodegradable microplastics to adsorb sulfonamide antibiotics in aquatic environments. The study found that aging increased the hydrophilicity and polarity of microplastics, boosting the adsorption capacity of polylactic acid by up to 3.18 times, suggesting that weathered microplastics may pose greater ecological risks as carriers of co-existing contaminants.
Adsorption behavior of levofloxacin hydrochloride on non‐degradable microplastics aging with H 2 O 2
This study explored how microplastics act as carriers for the antibiotic levofloxacin in water, finding that chemically aged plastics (simulating environmental weathering) adsorb significantly more of the drug than fresh plastics. All three plastics tested — PVC, polystyrene, and PET — showed increased drug-binding capacity after aging, primarily through pore-filling. This matters because microplastics in rivers and lakes don't just pose a physical hazard; they can pick up and concentrate pharmaceutical contaminants, potentially delivering them to aquatic organisms at higher doses.
Adsorption of Macrolide Antibiotics by Aged Microplastics of Different Sizes: Mechanisms and Effects
Researchers investigated how aging affects the ability of polystyrene microplastics to adsorb macrolide antibiotics in water, testing two particle sizes under simulated natural aging conditions. They found that aging increased surface roughness and oxygen-containing functional groups on the microplastics, significantly enhancing their ability to adsorb azithromycin, clarithromycin, and erythromycin. The findings suggest that weathered microplastics in the environment may carry higher loads of antibiotic contaminants than pristine particles.
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.
Adsorption-desorption behaviors of ciprofloxacin onto aged polystyrene fragments in aquatic environments
Researchers investigated how UV and chemical aging of polystyrene microplastic fragments affects their adsorption and desorption of the antibiotic ciprofloxacin in aquatic environments, finding that aging increased surface area and altered surface chemistry, thereby enhancing adsorption capacity. The study identified key physicochemical properties controlling antibiotic-microplastic interactions and their potential to affect antibiotic bioavailability in contaminated waters.
Microplastics influence the fate of antibiotics in freshwater environments: Biofilm formation and its effect on adsorption behavior
Researchers found that biofilm formation on microplastics in freshwater environments enhanced antibiotic adsorption by 24-51%, with potential pathogens detected in all biofilm communities across PVC, PA, and HDPE plastics.
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.
The occurrence of microplastic in specific organs in commercially caught fishes from coast and estuary area of east China
Researchers studied how polyethylene microplastics interact with the antibiotic ciprofloxacin in aquatic environments and found that the plastic particles can absorb and concentrate the drug on their surface. The adsorption capacity increased with weathering of the plastic, suggesting that aged microplastics in the environment are more effective carriers of pharmaceutical pollutants. The findings raise concerns that microplastics could transport antibiotics through water systems, potentially contributing to antimicrobial resistance.
Characterization of microplastics and their interaction with antibiotics in wastewater
Researchers characterized microplastics in wastewater and investigated their interactions with antibiotics, examining how microplastic surfaces adsorb antibiotic compounds and the implications for antibiotic transport and dissemination in wastewater treatment systems.
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.
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.
Investigation of the adsorption–desorption behavior of antibiotics by polybutylene succinate and polypropylene aged in different water conditions
Researchers investigated how dissolved organic matter and salinity affect the aging of polybutylene succinate (PBS) and polypropylene (PP) microplastics and their subsequent adsorption-desorption of the antibiotic sulfamethoxazole, finding that dissolved organic matter promoted aging more strongly than salinity, especially for the biodegradable PBS, and that aging altered antibiotic binding behavior.
Adsorption properties and influencing factors of antibiotics on microplastics under simulated gastric fluid environment
Researchers investigated how microplastics adsorb antibiotics under simulated human stomach conditions and found that aged microplastics had significantly greater adsorption capacity than pristine ones. Among the antibiotics tested, amoxicillin was most readily adsorbed by all three microplastic types studied, and adsorption capacity increased with smaller particle sizes and lower ionic strength.
Mechanistic insight into different adsorption of norfloxacin on microplastics in simulated natural water and real surface water
This study compared the adsorption of norfloxacin antibiotic onto microplastics in simulated natural water versus real surface water, finding that natural organic matter and competing ions in real water significantly reduced antibiotic uptake by microplastics.
Ecotoxicological effects of antibiotic adsorption behavior of microplastics and its management measures
This review summarizes research on how microplastics adsorb antibiotics from the environment, creating combined pollutant complexes with potentially greater ecological harm. Researchers found that factors like plastic type, aging, and environmental conditions strongly influence how much antibiotic a microplastic particle can carry. The study highlights that these microplastic-antibiotic combinations may contribute to the spread of antibiotic resistance in the environment.