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61,005 resultsShowing papers similar to Effects of biofilm on metal adsorption behavior and microbial community of microplastics
ClearAdsorption behavior of UV aged microplastics on the heavy metals Pb(II) and Cu(II) in aqueous solutions
Researchers examined how UV aging affects the adsorption of lead and copper onto polypropylene, polyethylene, and polystyrene microplastics, finding that aging creates new oxidation functional groups that enhance heavy metal adsorption capacity.
Enhanced copper adsorption by polyamide and polylactic acid microplastics: The role of biofilm development and chemical aging
Researchers studied how chemical aging and biofilm growth on polyamide and polylactic acid microplastics changed their ability to absorb copper from water. Both processes significantly increased the surface area and chemical reactivity of the plastics, making them absorb substantially more copper than fresh microplastics. The study suggests that as microplastics age and develop biofilms in natural waterways, they become increasingly effective at concentrating heavy metals, potentially altering how these contaminants move through aquatic environments.
Biofilm enhances the copper (II) adsorption on microplastic surfaces in coastal seawater: Simultaneous evidence from visualization and quantification
Researchers found that biofilm formation on microplastic surfaces significantly enhanced copper adsorption in coastal seawater, with visual and quantitative evidence showing that biofilm-coated microplastics accumulate substantially more copper than uncoated particles, increasing their potential as vectors for metal contaminant transport.
Biofilm colonization on non-degradable and degradable microplastics change the adsorption of Cu(II) and facilitate the dominance of pathogenic microbes
Researchers studied how biofilm growth on both degradable and non-degradable microplastics alters their ability to absorb copper from water. They found that aging and biofilm colonization significantly increased the adsorption capacity of both polyamide and polylactic acid microplastics for copper ions. The study also revealed that biofilm-covered microplastics harbored a higher proportion of potentially pathogenic microbes, raising concerns about microplastics as vectors for both heavy metals and harmful bacteria.
Adsorption of heavy metals by biofilm-coated microplastics in aquatic environments: Mechanisms, isotherm and kinetic processes, and influencing factors
This review synthesizes research on how biofilms—microbial coatings that naturally form on microplastics in water—alter the particles' ability to absorb heavy metals like lead, copper, and cadmium, finding that biofilmed microplastics generally adsorb more metal than bare plastic and that electrostatic forces and surface complexation are the dominant mechanisms. This matters because microplastics coated in both biofilm and toxic metals may deliver a double dose of contamination to organisms that ingest them. The review identifies key gaps, including how competitive metal mixtures and shifting biofilm composition over time affect this combined pollution risk.
Effects of biofilm formation on triclosan adsorption by UV-aged and pristine polystyrene microplastics in aquatic environments
Researchers investigated how biofilm formation on UV-aged versus pristine polystyrene microplastics affected triclosan adsorption, finding that biofilm-colonized aged microplastics had altered surface properties that changed triclosan uptake compared to unaged particles.
Sorption behavior of Pb(II) onto polyvinyl chloride microplastics affects the formation and ecological functions of microbial biofilms
Researchers found that lead sorption onto PVC microplastics significantly affected microbial biofilm formation and ecological functions, with lead-enriched microplastics altering biofilm community structure and metabolic activities in aquatic systems.
Adsorption of Cu2+ by UV aged polystyrene in aqueous solution
UV-aged polystyrene microplastics showed altered surface chemistry and enhanced adsorption of copper ions compared to virgin particles, with the degree of adsorption increasing with aging duration. The findings indicate that environmental weathering transforms microplastics into more potent heavy metal carriers, intensifying their role as pollutant vectors.
Aging mechanism of microplastics with UV irradiation and its effects on the adsorption of heavy metals
Researchers aged polystyrene microplastics using UV irradiation under three conditions (air, pure water, seawater) and found that aging changed surface chemistry and increased the microplastics' capacity to adsorb heavy metals, with seawater aging producing the most pronounced surface oxidation.
Untangling the role of biotic and abiotic ageing of various environmental plastics toward the sorption of metals
Using factorial experiments, researchers disentangled the contributions of UV weathering, microbial biofilm colonization, and their interaction to metal sorption onto five types of environmental plastic, finding that both biotic and abiotic aging independently and synergistically enhance metal binding to plastic surfaces.
The effects of metals and polymer types on the development of biofilm on microplastic surface
Researchers examined biofilm development on three polymer types (PVC, polystyrene, and polyethylene) in the presence of three heavy metals (lead, chromium, and cadmium) to determine how metal contamination influences the formation and composition of plastisphere communities. The study assessed whether metal-microplastic co-contamination alters the structure of microbial biofilms that colonize plastic surfaces in aquatic environments.
The Effect of Different Aging Methods on the Heavy Metal Adsorption Capacity of Microplastics
Polystyrene and polylactic acid microplastics were aged under UV and high-temperature conditions, and aged microplastics showed altered surface properties that affected their adsorption capacity for heavy metals cadmium, copper, and zinc.
Study on the Adsorption Behavior and Mechanism of Heavy Metals in Aquatic Environment before and after the Aging of Typical Microplastics
Researchers investigated the adsorption behavior and mechanisms of heavy metals by typical microplastics before and after environmental aging, finding that aging significantly alters microplastics' surface properties and capacity to bind metals such as cadmium and lead in aquatic systems.
Adsorption of copper by naturally and artificially aged polystyrene microplastics and subsequent release in simulated gastrointestinal fluid
Researchers compared how naturally and artificially aged polystyrene microplastics adsorb copper and then release it in simulated digestive fluids. They found that naturally aged microplastics from a lake adsorbed the most copper, largely due to metallic oxide deposits on their surfaces. The study suggests that aged microplastics may act as vectors for transporting metals into organisms through ingestion, with the aging method significantly affecting how much metal is carried and released.
Monitoring of biofilm development and physico-chemical changes of floating microplastics at the air-water interface
Researchers monitored biofilm development on floating polyethylene microplastics and found that biofilm growth increased particle density, metal adsorption capacity (52% higher for lead), and surface cracking, but did not cause the particles to sink even after 12 weeks.
Adsorption properties and mechanism of Cu(II) on virgin and aged microplastics in the aquatic environment
Researchers examined how UV aging changes the surface properties of polyamide and polylactic acid microplastics and affects their ability to adsorb copper ions in water. The study found that UV irradiation altered the physical and chemical characteristics of both plastic types, increasing their capacity to bind heavy metals. Evidence indicates that weathered microplastics may act as more effective carriers of heavy metal contaminants in aquatic environments compared to virgin plastics.
Research progress on the role of biofilm in heavy metals adsorption-desorption characteristics of microplastics: A review
This review examines how biofilm formation on microplastics in aquatic environments modifies their properties and changes how they adsorb and release heavy metals. Researchers found that biofilm-covered microplastics behave significantly differently than bare microplastics, which has important implications for understanding the combined environmental risks of microplastics and heavy metal contamination.
Microplastics as an emerging anthropogenic vector of trace metals in freshwater: Significance of biofilms and comparison with natural substrates
Scientists placed virgin polystyrene microplastics in a eutrophic urban lake and a drinking water reservoir for four weeks to allow biofilm development, then measured trace metal accumulation, finding that biofilm-coated microplastics accumulated significantly more metals than virgin plastics or natural substrates.
Effect of particle size on the colonization of biofilms and the potential of biofilm-covered microplastics as metal carriers
Industrial and food-grade polystyrene microplastics of different sizes were colonized by biofilms in aquatic conditions, with smaller particles supporting denser biofilm growth and showing greater metal adsorption capacity than larger ones. The findings suggest that particle size is a key factor governing both the ecological properties of the plastisphere and the capacity of microplastics to concentrate heavy metals.
Biofilm facilitates metal accumulation onto microplastics in estuarine waters
This study demonstrated that biofilm colonization on microplastics in estuarine waters significantly enhanced their sorption of metals such as copper and zinc, suggesting biofouling changes the contaminant-carrying capacity of plastic debris.
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 properties and influencing factors of Cu(II) on polystyrene and polyethylene terephthalate microplastics in seawater
Researchers investigated how polystyrene and polyethylene terephthalate microplastics adsorb copper ions in seawater, characterizing adsorption kinetics and influencing factors to understand microplastics' role as vectors for heavy metal pollutants in marine environments.
Effect of biofilm colonization on Pb(II) adsorption onto poly(butylene succinate) microplastic during its biodegradation
Researchers found that biofilm colonization on biodegradable PBS microplastics during degradation increased lead adsorption roughly tenfold compared to virgin plastic, suggesting that degrading biodegradable plastics may concentrate heavy metals more effectively in aquatic environments.
Investigation of the process of adsorption of heavy metals in coastal sands containing micro-plastics, with special attention to the effect of aging process and bacterial spread in micro-plastics
Researchers investigated how aging and bacterial culture affect the adsorption of heavy metals (lead, cadmium, copper, zinc, chromium, and nickel) in coastal sands containing microplastics. UV aging for 14 days increased metal adsorption capacity by up to 60%, and simultaneous bacterial culture with aging further increased adsorption power by up to 80% for all studied metals.