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61,005 resultsShowing papers similar to A contrasting alteration of sulfamethoxazole bioaccessibility in two different soils amended with polyethylene microplastic: In-situ measurement using diffusive gradients in thin films
ClearImpact on sulfadiazine bio-accessibility in soils through organic diffusive gradients in thin films (o-DGT): Differentiation based on microplastic polymers, aging, and soil properties
Microplastics of different polymer types and aging states were shown to alter the bio-accessibility of the antibiotic sulfadiazine in agricultural soils, measured using organic diffusive gradient thin-film devices that mimic biological uptake.
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.
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.
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.
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.
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.
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.
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.
LDPE and HDPE Microplastics Differently Affect the Transport of Tetracycline in Saturated Porous Media
Researchers compared how two types of polyethylene microplastics (LDPE and HDPE) affect the movement of the antibiotic tetracycline through soil, finding that HDPE more strongly retarded tetracycline transport. This shows that different plastic types can alter the spread of antibiotic contamination in soils, with implications for both groundwater quality and antibiotic resistance.
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.
Effect of polyethylene microplastics on antibiotic resistance genes: A comparison based on different soil types and plant types
This study compared how polyethylene microplastics affect antibiotic resistance genes across different soil types and found that contaminated soils and the presence of certain plants influenced which resistance genes proliferated. The results suggest that microplastics in agricultural soil can help spread antibiotic resistance, which is a serious concern for human health because resistant bacteria can enter the food supply through crops.
Comparison of adsorption and desorption of triclosan between microplastics and soil particles
Researchers compared adsorption and desorption of triclosan on polyethylene and polystyrene microplastics versus soil particles, finding that PE had the highest adsorption rate and equilibrium capacity while PS and soil showed similar profiles. The results suggest that microplastics in soil environments can compete with soil particles for triclosan binding, potentially altering the contaminant's mobility and bioavailability.
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.
Insights into behavior and mechanism of tetracycline adsorption on virgin and soil-exposed microplastics
Researchers studied how common microplastics absorb the antibiotic tetracycline, finding that soil-exposed plastics absorbed significantly more than fresh ones, with polylactic acid showing the greatest increase at 88%. The study revealed that environmental weathering changes how microplastics interact with antibiotics through different physical and chemical mechanisms. These findings are important for understanding how microplastics may carry and spread antibiotic contamination in soil environments.
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.
Interaction behaviors of sulfamethoxazole and microplastics in marine condition: Focusing on the synergistic effects of salinity and temperature
This study found that microplastics in ocean water readily absorb the antibiotic sulfamethoxazole, but the amount absorbed drops sharply as salinity increases — with seawater conditions reducing uptake by over 50% compared to fresh water. The findings reveal that in realistic marine conditions, the dynamics of antibiotic-microplastic interactions differ substantially from freshwater lab studies, which has implications for understanding how microplastics spread antibiotic contamination through marine food webs.
[Research Progress on Adsorption, Migration, and Compound Toxicity of Microplastics and Antibiotics in Soil].
This review examined how microplastics adsorb antibiotics in soil, drive their co-migration, and produce combined toxic effects on soil fauna, plants, and microorganisms. Hydrophobic partitioning, electrostatic interactions, and hydrogen bonding are the primary adsorption mechanisms, and co-exposure often amplifies toxicity to soil ecosystems.
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.
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.
Microplastic effects on soil organic matter dynamics and bacterial communities under contrasting soil environments
Researchers compared microplastic effects on soil organic matter dynamics and bacterial communities across contrasting soil environments, finding that the type of microplastic polymer and soil conditions together determine whether microbial activity and carbon cycling are stimulated or suppressed.
Interactive effects of soil characteristics and polymer types reveal patterns of denitrifying bacteria enrichment in the soil plastisphere
A field study examined how soil characteristics (texture, organic matter, pH) and polymer type interact to determine microplastic persistence and mobility in agricultural soils. The results show that soil properties are as important as plastic type in predicting environmental fate.
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.