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61,005 resultsShowing papers similar to Impact on sulfadiazine bio-accessibility in soils through organic diffusive gradients in thin films (o-DGT): Differentiation based on microplastic polymers, aging, and soil properties
ClearA contrasting alteration of sulfamethoxazole bioaccessibility in two different soils amended with polyethylene microplastic: In-situ measurement using diffusive gradients in thin films
Researchers found that polyethylene microplastics altered the bioaccessibility of the antibiotic sulfamethoxazole differently in two soil types, increasing it in sandy soil but decreasing it in clay soil, demonstrating that soil composition critically mediates microplastic-antibiotic interactions.
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.
Influence of microplastics on the availability of antibiotics in soils
Researchers tested how three common types of microplastics affect the availability of antibiotics in different soil types. They found that microplastics significantly reduced the amount of antibiotics accessible in soil by providing extra binding sites and altering soil chemistry. The findings suggest that microplastic contamination in agricultural soils could change how antibiotics move through the environment.
Aging reconfigures physicochemical inhibition mechanisms of polyamide microplastics on antibiotic transport in saturated soils: Micro-CT based pore characterization coupled with transport modeling
This study compared how fresh and environmentally aged polyamide microplastics affect the movement of the antibiotic trimethoprim through water-saturated soil, using soil column experiments, CT scanning to visualize pore structure, and computer modeling. Aged microplastics were more effective at blocking antibiotic movement than fresh ones, but the two types acted through different mechanisms — fresh plastics repelled the drug electrostatically while aged plastics changed soil pore structure. As both microplastics and antibiotics are widespread in agricultural soils, understanding how aging microplastics alter antibiotic transport is important for groundwater safety and antibiotic resistance risk.
Do Microplastics in Soil Influence the Bioavailability of Sulfamethoxazole to Plants?
Researchers investigated how three types of microplastics affect the availability and toxicity of the antibiotic sulfamethoxazole in soil using sorghum plants. They found that low concentrations of the antibiotic actually stimulated plant growth, while higher concentrations inhibited it, and the presence of microplastics generally reduced the antibiotic's toxicity. The study highlights that microplastics in agricultural soils can alter how pharmaceutical contaminants behave, with polystyrene having the strongest effect on drug availability.
Identification of the aged microplastics film and its sorption of antibiotics and bactericides in aqueous and soil compartments
Researchers simulated UV aging of polyethylene microplastics from black garbage bags and examined their sorption behavior toward antibiotics and bactericides in both water and soil. They found that UV-aged PE microplastics exhibited decreased crystallinity and hydrophobicity, significantly enhancing their capacity to adsorb these contaminants compared to virgin microplastics.
Microplastics inhibit oxytetracycline degradation in soils: Insights into biofilm-enhanced adsorption and microbial community shifts
Researchers examined how polyethylene and polylactic acid microplastics affect oxytetracycline degradation in organic fertilizer-amended paddy soil, finding that both plastic types significantly inhibited antibiotic degradation by lowering degradation rates 11.1-20.2%. Biofilm formation on microplastic surfaces enhanced oxytetracycline adsorption and shifted microbial community composition, reducing the abundance of antibiotic-degrading microorganisms.
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.
Enhance in mobility of oxytetracycline in a sandy loamy soil caused by the presence of microplastics
Researchers used batch and column experiments to study how the presence of polyamide (PA) microplastics affects the sorption and transport of the antibiotic oxytetracycline (OTC) in sandy loamy soil. They found that PA microplastics increased soil pH and reduced overall OTC sorption, leading to enhanced mobility of the antibiotic through the soil column, raising concerns about accelerated antibiotic transport to groundwater in microplastic-contaminated agricultural soils.
UV-aging reduces the effects of biodegradable microplastics on soil sulfamethoxazole degradation and sul genes development
Researchers compared how two biodegradable microplastics, PBAT and PHA, affect the breakdown of the antibiotic sulfamethoxazole and the development of antibiotic resistance genes in soil. The study found that virgin biodegradable microplastics increased dissolved organic carbon and altered antibiotic degradation rates, but UV aging reduced these effects. Evidence indicates that the environmental impact of biodegradable microplastics on soil antibiotic contamination depends on both plastic type and weathering state.
Soil health risks caused by interactions of microplastics and pesticides
Chlorpyrifos adsorption and desorption on pristine and UV-aged LDPE and biodegradable microplastics derived from plastic mulch films was investigated in laboratory experiments, along with bioconcentration in earthworms. Aging altered the adsorption-desorption behavior of both plastic types and affected pesticide bioavailability to earthworms, highlighting risks from pesticide-microplastic interactions in agricultural soils.
Effects of co-loading of polyethylene microplastics and ciprofloxacin on the antibiotic degradation efficiency and microbial community structure in soil
Researchers studied how polyethylene microplastics and the antibiotic ciprofloxacin together affect soil microbial communities and antibiotic degradation. The study found that co-loading of microplastics with antibiotics altered microbial community structure and affected the rate of antibiotic degradation in soil, suggesting microplastic contamination may influence how soils process pharmaceutical pollutants.
Deciphering the interaction of sulfamethoxazole with biodegradable versus conventional, virgin versus aged microplastics in aquatic environment
Researchers compared how biodegradable and conventional microplastics interact with the antibiotic sulfamethoxazole in water, both before and after UV aging. They found that biodegradable polylactic acid microplastics had the highest capacity to absorb the antibiotic, and that aging generally increased absorption for all plastic types. The study suggests that microplastics in waterways may act as carriers for pharmaceutical pollutants, with biodegradable plastics potentially posing a greater transport risk than conventional ones.
Microplastic aging alters the adsorption-desorption behaviors of sulfamethoxazole in marine animals: A study in simulated biological liquids
Researchers tested how UV aging of polyhydroxyalkanoate (PHA) and polyethylene (PE) microplastics affects their adsorption and desorption of the antibiotic sulfamethoxazole in simulated fish intestinal and mammalian stomach fluids. Aging increased adsorption capacity for sulfamethoxazole, while desorption in digestive fluids was higher for aged PHA than aged PE, with implications for antibiotic bioavailability in organisms that ingest microplastics.
Insight into the effect of microplastics on the adsorption and degradation behavior of thiamethoxam in agricultural soils
Researchers found that microplastics in agricultural soil alter both the adsorption and degradation behavior of the pesticide thiamethoxam, with different plastic types showing varying effects on how the pesticide binds to soil and breaks down over time.
Impact of microplastics and aged microplastics on the toxicity of emerging contaminants in the soil
Researchers assessed how polypropylene (PP) microplastics and UV-aged PP microplastics modify the toxicity of eight emerging organic contaminants -- including diclofenac, ciprofloxacin, and diuron -- on soil organism Enchytraeus crypticus, finding that while PP alone had no effect at 5 mg/kg, its presence significantly amplified the toxicity of all tested organic pollutants.
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.
Research on the effect of dissolved organic matter on the adsorption of oxytetracycline by high-density polyethylene
Researchers studied how dissolved organic matter (DOM) influences the adsorption of oxytetracycline antibiotic onto high-density polyethylene microplastics in soil, finding that DOM acts as a bridging agent that enhances the HDPE–antibiotic interaction through hydrophobic complexation.
The impact of microplastic and sulfanilamide co-exposure on soil microbiota
This study investigated what happens when microplastics and the antibiotic sulfanilamide are present together in soil, finding that the combination significantly altered soil microbial communities compared to either pollutant alone. Both conventional polyethylene and biodegradable polylactic acid microplastics interacted with the antibiotic to change bacterial diversity and soil chemistry. The results show that microplastics and antibiotics in agricultural soil can have compounding effects on soil health, potentially affecting the crops grown in it.
Adsorption behavior and mechanism of different types of (aged) microplastics for napropamide in soils
Researchers studied how different types of microplastics, both conventional and biodegradable, affect the soil absorption of the herbicide napropamide. They found that aged microplastics had significantly different adsorption properties than new ones, and that the presence of microplastics generally altered how the herbicide behaved in soil. The findings suggest that microplastic pollution may change how agricultural chemicals move through and persist in farmland.
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.
Aged polyamide microplastics enhance the adsorption of trimethoprim in soil environments
This study found that aged polyamide microplastics in soil significantly enhanced the adsorption of the antibiotic trimethoprim — more than 20 times greater than soil alone — through both surface sorption and pH alteration effects. This "enrichment effect" means that microplastics in agricultural soil can concentrate antibiotics, potentially increasing the risk of antibiotic resistance development and reducing the effectiveness of soil as a natural buffer against pharmaceutical contamination.
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.
Microplastic aging mediates bacterial and antibiotic resistance gene composition in plastisphere and the associated soil solution
Researchers ran a microcosm experiment comparing how pristine versus aged microplastics influenced bacterial communities and antibiotic resistance gene (ARG) composition in the plastisphere and surrounding soil solution. Aged MPs enriched distinct ARGs and microbial taxa compared to pristine MPs, suggesting MP weathering intensifies the spread of antibiotic resistance in soils.