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20 resultsShowing papers similar to Effects of heavy metals on the adsorption of ciprofloxacin on polyethylene microplastics: Mechanism and toxicity evaluation
ClearAdsorption behavior of the antibiotic levofloxacin on microplastics in the presence of different heavy metals in an aqueous solution
Researchers studied how the antibiotic levofloxacin sticks to PVC microplastics in water and how the presence of heavy metals affects this process. They found that certain metals like copper, zinc, and chromium increased the amount of antibiotic absorbed by the plastic, while cadmium and lead reduced it. The findings reveal that microplastics can act as carriers for both antibiotics and metals in polluted water, potentially creating complex contamination scenarios.
Adsorption interactions between typical microplastics and enrofloxacin: Relevant contributions to the mechanism
This study investigated how common microplastics (polyethylene, PVC, and polystyrene) absorb the antibiotic enrofloxacin from the environment. The researchers found that microplastics can effectively bind antibiotics through multiple chemical mechanisms, with the strength of binding depending on water conditions like acidity. This is concerning because microplastics carrying antibiotics could transport them into the food chain, potentially contributing to antibiotic resistance and affecting human health.
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.
Heavy metal-mediated adsorption of antibiotic tetracycline and ciprofloxacin on two microplastics: Insights into the role of complexation
This study investigated how heavy metals copper and cadmium affect the adsorption of antibiotics tetracycline and ciprofloxacin onto polyamide and polyvinyl chloride microplastics. Heavy metals enhanced antibiotic adsorption through surface complexation, with copper promoting stronger binding than cadmium due to its greater complexation ability.
Adsorption behavior of Cu(II) and Cr(VI) on aged microplastics in antibiotics-heavy metals coexisting system
Researchers investigated how antibiotics affect the adsorption of copper and chromium onto aged polystyrene and PVC microplastics, finding that antibiotic co-contamination alters heavy metal binding behavior on weathered plastics in aqueous environments.
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.
Influence of cephalexin on cadmium adsorption onto microplastic particles in water: Human health risk evaluation
Researchers studied how the antibiotic cephalexin influences the adsorption of the toxic metal cadmium onto polyethylene microplastics in water. They found that smaller microplastic particles absorbed more cadmium, and that the combined presence of cadmium and microplastics poses health risks, particularly for children exposed through contaminated groundwater. The study provides evidence that microplastics can act as carriers for heavy metals, potentially increasing human exposure to toxic substances.
Aged microplastics enhance their interaction with ciprofloxacin and joint toxicity on Escherichia coli
Researchers found that aged microplastics showed enhanced adsorption of the antibiotic ciprofloxacin compared to pristine particles, and that their combined exposure produced greater toxicity to E. coli at the molecular level than either pollutant alone.
Adsorption 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 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.
Combined pollution of tetracyclines and microplastics in the aquatic environment: Insights into the occurrence, interaction mechanisms and effects
This review examines how microplastics and tetracycline antibiotics interact in water environments, since microplastics can absorb and carry antibiotics on their surfaces. Factors like pH, heavy metals, and organic matter in water influence how tightly antibiotics bind to microplastics, and the combined pollution is more harmful to aquatic life than either pollutant alone. This is relevant to human health because these microplastic-antibiotic combinations can enter drinking water supplies and promote antibiotic resistance.
Adsorption of Different Pollutants by Using Microplastic with Different Influencing Factors and Mechanisms in Wastewater: A Review
This review examines how microplastics adsorb various pollutants including heavy metals, antibiotics, and organic contaminants in wastewater, analyzing the key factors and mechanisms that influence their adsorption capacity and environmental behavior.
Effect of cadmium on the sorption of tylosin by polystyrene microplastics
Researchers found that cadmium ions significantly influence the sorption of the antibiotic tylosin onto polystyrene microplastics, with competitive and cooperative interactions depending on concentration ratios, highlighting that co-contamination with heavy metals alters microplastic-mediated antibiotic transport in aquatic environments.
Impact of Microplastics on Ciprofloxacin Adsorption Dynamics and Mechanisms in Soil
Researchers investigated how microplastics affect the adsorption dynamics and mechanisms of ciprofloxacin (an antibiotic) in soil, finding that microplastics competed with soil particles for antibiotic binding and altered the overall fate and mobility of ciprofloxacin in the soil environment.
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.
A critical review of the adsorption-desorption characteristics of antibiotics on microplastics and their combined toxic effects
This systematic review examines how microplastics absorb and release antibiotics in the environment, and the combined toxic effects of this interaction. When microplastics carrying antibiotics are ingested by living organisms, they may promote antibiotic resistance and cause greater harm than either pollutant alone, which is a growing concern for human health.
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.
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.
Adsorption behavior of aged polybutylece terephthalate microplastics coexisting with Cd(II)-tetracycline
Researchers studied how aged polybutylene terephthalate microplastics interact with cadmium and the antibiotic tetracycline in water, finding that weathered microplastics adsorb these pollutants more readily than pristine ones. The study suggests that aging changes the surface properties of microplastics, increasing their capacity to carry heavy metals and antibiotics and potentially amplifying their environmental toxicity.
The types of microplastics, heavy metals, and adsorption environments control the microplastic adsorption capacity of heavy metals
Using nearly 5,000 data points, researchers mapped out which types of microplastics are best at absorbing which heavy metals from water. They found that the plastic type, the specific metal, and environmental conditions like pH and temperature all significantly affect how much metal sticks to the plastic. This is important because microplastics carrying heavy metals into the food chain could amplify the toxic effects of both pollutants on human health.