We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
20 resultsShowing papers similar to Adsorption of As(III) by microplastics coexisting with antibiotics
Clear[Adsorption Characteristics of Arsenic on UV-aged Polypropylene Microplastics in Aqueous Solution].
This study examined how UV weathering (aging) changes the ability of polypropylene microplastics to adsorb arsenic from water, finding that aged plastic had rougher surfaces and more oxygen-containing groups, which enhanced arsenic adsorption. Environmental factors like pH and dissolved organic matter also influenced how much arsenic stuck to the plastic. Because aged microplastics bind more arsenic, they could carry this toxic heavy metal into aquatic food webs more effectively than pristine plastic particles.
Impact of Microplastics on the Fate and Behaviour of Arsenic in the Environment and Their Significance for Drinking Water Supply
This review highlights a largely overlooked problem: microplastics in the environment can adsorb arsenic — one of the world's most dangerous water contaminants — onto their surfaces and potentially transport it to new locations or make it harder to remove during drinking water treatment. The authors call for urgent research into how the presence of microplastics affects the performance of arsenic removal technologies, since both pollutants now co-occur in water sources globally.
Effect and mechanism of coexistence of microplastics on arsenate adsorption capacity in water
Researchers examined how the presence of microplastics affects the ability of different materials to adsorb arsenate from contaminated water. They found that microplastics can interfere with the adsorption process, particularly by competing for binding sites on adsorbent materials like ZIF-8. The study highlights that co-contamination of water with both microplastics and heavy metals may complicate pollution remediation efforts.
Interface adsorption characteristics of microplastics on multiple morphological arsenic compounds
Researchers studied how polystyrene and PET microplastics adsorb different forms of arsenic, a toxic element commonly found in contaminated water. They found that polystyrene had a much higher capacity to bind arsenic compounds than PET, and that the arsenic-loaded microplastics were more toxic to organisms than either pollutant alone. The study highlights that microplastics can act as carriers for toxic heavy metals, amplifying their environmental harm.
Adsorption of arsenite to polystyrene microplastics in the presence of humus
Polystyrene microplastics adsorb arsenic more effectively when humic acid is present in the water, because the organic matter forms a coating on the plastic surface that attracts more arsenic ions. This finding suggests that microplastics can serve as vectors for the toxic metalloid arsenic in natural water environments.
Effects of heavy metals on the adsorption of ciprofloxacin on polyethylene microplastics: Mechanism and toxicity evaluation
Researchers studied how heavy metals in water affect the ability of polyethylene microplastics to absorb the antibiotic ciprofloxacin. They found that heavy metals competed with the antibiotic for binding sites on the microplastic surface, changing how much of each pollutant the plastic could carry. This is important because it shows microplastics in real-world environments may transport different combinations of pollutants, potentially delivering both antibiotics and heavy metals into the food chain.
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 role of microplastics in altering arsenic fractionation and microbial community structures in arsenic-contaminated riverine sediments
The addition of microplastics to arsenic-contaminated riverine sediments altered arsenic fractionation and shifted microbial community structures, with biodegradable plastics producing different effects compared to conventional polymers. The study demonstrates that microplastics can modify the environmental behavior of co-existing toxic metals in sediment ecosystems.
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.
Microplastics enhance the adsorption capacity of zinc oxide nanoparticles: Interactive mechanisms and influence factors
Researchers found that the presence of microplastics enhances the ability of zinc oxide nanoparticles to adsorb antibiotics from water, with aged microplastics showing different effects than virgin ones. The interactions between microplastics and nanoparticles were driven primarily by electrostatic forces, and factors like pH and humic acid further influenced adsorption rates. The study warns that microplastics may help spread antibiotic contamination more widely through aquatic environments.
Arsenic adsorption by carboxylate and amino modified polystyrene micro- and nanoplastics: kinetics and mechanisms
Researchers found that functionalized polystyrene micro- and nanoplastics can adsorb arsenic from water, with carboxylate-modified particles showing higher capacity than amino-modified ones, and that salinity and humic acids inhibit adsorption, confirming microplastics can alter arsenic behavior in ecosystems.
Behavior, mechanisms and hazardous changes of interactions with microplastics when heterogeneous pollutants coexist: Arsenic and thiram
Researchers studied how six types of microplastics interact with arsenic and the pesticide thiram when these pollutants coexist. They found that both contaminants adsorb onto microplastics through physical diffusion and chemical processes in a competitive and synergistic manner. While the adsorbed pollutants did not significantly increase acute environmental toxicity, the study suggests they may pose a stronger potential hazard to human health.
Adsorption 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.
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.
Microplastics play a minor role in tetracycline sorption in the presence of dissolved organic matter
Researchers studied the sorption of the antibiotic tetracycline onto microplastics in the presence of dissolved organic matter, finding that dissolved organics competed strongly for binding sites on microplastics, meaning real-world conditions substantially reduce microplastic uptake of tetracycline.
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.
As(III) adsorption onto different-sized polystyrene microplastic particles and its mechanism
Researchers studied how arsenic adsorbs onto polystyrene microplastic particles of different sizes prepared by ball milling. They found that smaller particles with greater surface area adsorbed more arsenic, with hydrogen bonding and electrostatic attraction driving the process. The study indicates that microplastics in the environment could serve as carriers for arsenic contamination, with adsorption influenced by pH, temperature, and the presence of other ions.
The adsorption of arsenic on micro- and nano-plastics intensifies the toxic effect on submerged macrophytes
Researchers investigated how arsenic adsorbs onto microplastics of varying types and sizes, and how those particles affect underwater plants. They found that nanoplastics increased arsenic absorption in aquatic macrophytes by 36-47%, causing more severe leaf damage and oxidative stress than either contaminant alone.
Microplastics affect arsenic bioavailability by altering gut microbiota and metabolites in a mouse model
Researchers investigated how microplastic co-ingestion affects arsenic bioavailability in mice by examining changes in gut microbiota and metabolites. The study found that smaller polyethylene particles (30 micrometers) at high doses significantly increased arsenic oral bioavailability from 72% to nearly 90%, while larger particles did not have this effect. Evidence indicates that microplastics alter gut microbiota and metabolite profiles in ways that can enhance the absorption of co-ingested toxic pollutants.
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.