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61,005 resultsShowing papers similar to Can nature-based biochar and biochar nanoparticles diminish the impacts of silver nanoparticles and microplastics on microbially-driven stream detrital ecosystem?
ClearMicroplastics and silver nanoparticles compromise detrital food chains in streams through effects on microbial decomposers and invertebrate detritivores
Researchers tested how microplastics and silver nanoparticles, both common pollutants from personal care products, affect stream food webs built around decomposing leaf litter. They found that both pollutants, alone and in combination, reduced fungal decomposition and harmed invertebrate feeding and growth, disrupting the base of the food chain. The study suggests that the co-occurrence of these contaminants in freshwater could impair nutrient cycling in stream ecosystems.
Can microplastics from personal care products affect stream microbial decomposers in the presence of silver nanoparticles?
This study exposed freshwater fungal decomposers to microplastics from personal care products and silver nanoparticles, individually and in combination, finding that both pollutants reduced microbial activity and that combined exposure often produced additive or synergistic inhibition. The results highlight the risk to stream-based decomposition processes from personal care product-derived pollutants.
Impacts of low concentrations of nanoplastics on leaf litter decomposition and food quality for detritivores in streams
Researchers found that low concentrations of polystyrene nanoplastics impaired leaf litter decomposition in forested streams by reducing aquatic hyphomycete fungal activity and decreasing food quality for detritivore invertebrates, threatening stream ecosystem function.
Effects of nanoplastic exposure routes on leaf decomposition in streams
Researchers conducted a microcosm experiment showing that dietary exposure to nanoplastics — through eating contaminated leaf litter — more severely disrupts stream food webs than waterborne exposure, reducing microbial enzyme activity, lowering leaf lipid content, and decreasing river snail feeding rates by up to 17%.
Nanoplastic pollution inhibits stream leaf decomposition through modulating microbial metabolic activity and fungal community structure
Researchers found that polystyrene nanoplastics significantly inhibited leaf litter decomposition in freshwater streams, even at low concentrations. The study suggests this occurs through suppression of key microbial enzymes and shifts in fungal community structure, indicating that nanoplastic pollution could disrupt important nutrient cycling processes in freshwater ecosystems.
Effects of long-term exposure to silver nanoparticles on the structure and function of microplastic biofilms in eutrophic water
Long-term exposure to silver nanoparticles altered the structure and function of microbial biofilms on microplastics in eutrophic water, with nanoparticles suppressing biofilm biomass, changing community composition, and reducing metabolic activity, raising concerns about combined pollutant effects in urban aquatic systems.
Exploring the potential of biochar for the remediation of microbial communities and element cycling in microplastic-contaminated soil
Scientists found that adding biochar (a charcoal-like material made from plant waste) to soil contaminated with microplastics helped restore healthy microbial communities and nutrient cycling. The biochar reversed negative effects that microplastics had on soil chemistry, including nitrogen and phosphorus availability. This suggests biochar could be a practical tool for repairing farmland damaged by microplastic pollution.
Impacts of Lead and Nanoplastic Co-Exposure on Decomposition, Microbial Diversity, and Community Assembly Mechanisms in Karst Riverine Miscanthus Litter
Researchers conducted a 90-day experiment exposing plant litter in simulated karst river conditions to lead, nanoplastics, and their combinations. Low-dose nanoplastics accelerated litter decomposition while high doses suppressed it, and co-exposure with lead produced complex, non-linear effects. The study found that bacterial communities remained resilient to contamination, while fungal communities were far more vulnerable, suggesting fungi are the weaker link in pollutant-stressed decomposition processes.
Adsorptive behavior of micro(nano)plastics through biochar: Co-existence, consequences, and challenges in contaminated ecosystems
This review examines how biochar can adsorb micro- and nanoplastics with over 90% removal efficiency in aqueous systems, while also discussing their combined effects on soil properties, microbial communities, and plant growth.
Comparative Study of Biocides and Nanoparticles on Bacterial Microorganisms
Researchers compared how biocides and nanoparticles affect stream microbial communities, finding that both can disrupt bacteria and potentially promote antibiotic resistance. Microplastics in streams similarly alter microbial communities, and understanding these effects is important for protecting the ecological services that stream microbes provide.
How to safeguard soil health against silver nanoparticles through a microbial functional gene-based approach?
This review examines how silver nanoparticles harm soil health by disrupting the microbial communities that keep soil fertile and functional. While focused on silver nanoparticles rather than microplastics, the research is relevant because both types of particles accumulate in soil and can have overlapping toxic effects on the microorganisms that support food production. The proposed framework for protecting soil health could apply to microplastic contamination as well.
Nanoplastics intensify metal-induced impacts in freshwater ecosystems
Researchers found that polystyrene nanoplastics — both bare and carboxylated — intensified metal-induced impairment of leaf litter decomposition by aquatic hyphomycetes in freshwater microcosms, with combined stressor effects observed at environmentally relevant concentrations and amplified at higher exposures.
Synergistic effects of nanoplastics and graphene oxides on microbe-driven litter decomposition in streams
Researchers ran a controlled aquatic experiment combining nanoplastics and graphene oxide to study their effects on leaf litter decomposition, finding that the combination altered bacterial diversity, boosted certain enzymatic activities, and produced time-dependent effects—initially inhibiting then promoting decomposition—with bacteria more affected than fungi.
Response of a simulated aquatic fungal community to nanoplastics exposure and functional consequence on leaf decomposition
Researchers exposed a simulated stream fungal community to nano-polystyrene and found that even low concentrations (1–100 µg/L) suppressed fungal reproduction and reduced the abundance of Geotrichum candidum, slowing leaf litter decomposition by up to 27.9% and disrupting a key aquatic nutrient cycling function.
Co-exposure effects of polystyrene nanoplastics and silver nanoparticles in constructed wetlands: Microbial and macrophyte responses
Researchers co-exposed constructed wetlands to polystyrene nanoplastics and silver nanoparticles and found synergistic disruption of the electron transport chain, impaired ATP production, and altered nitrogen transformation, with combined exposure more toxic than either contaminant alone.
Polystyrene nanoparticles intensify the algae-mediated negative priming effect on leaf litter decomposition
Researchers showed that polystyrene nanoplastics intensify the natural inhibitory effect of benthic algae on leaf litter decomposition in streams, reducing decomposition rates by 21%, by depleting labile carbon transfer from algae to fungal decomposers and reducing fungal diversity, including key decomposer genera essential for aquatic nutrient cycling.
The Removal and Mitigation Effects of Biochar on Microplastics in Water and Soils: Application and Mechanism Analysis
This review examines how biochar can be used to both remove microplastics from water and mitigate their harmful effects in soils. Researchers found that woody biochar was the most effective type for adsorbing microplastics, while also helping to restore soil enzyme activities and microbial communities disrupted by plastic contamination. The study calls for further research into optimizing biochar applications and understanding the long-term environmental implications of biochar-microplastic interactions.
The individual and combined effects of polystyrene and silver nanoparticles on nitrogen transformation and bacterial communities in an agricultural soil
Researchers ran a 45-day soil experiment combining polystyrene micro- and nanoplastics with silver nanoparticles, finding that the silver nanoparticles dominated nitrogen cycle disruption while polystyrene nanoplastics partially offset this by upregulating anammox genes — with particle size proving a critical variable in predicting combined ecological risk.
Role of Biochar and Microbes in Remediation of Microplastics in Soil
This review examines how biochar and soil microbes can be combined to remediate microplastic-contaminated soils, synthesizing evidence for biochar's adsorption capacity and microbial degradation pathways that reduce microplastic persistence and toxicity.
Microplastics have lethal and sublethal effects on stream invertebrates and affect stream ecosystem functioning
Using a mesocosm experiment, researchers showed that microplastics at environmentally relevant concentrations caused lethal and sublethal effects on freshwater invertebrates and reduced key ecosystem functions including leaf litter decomposition and algal colonization of streambed substrates.
Evidence of micro and macroplastic toxicity along a stream detrital food-chain.
Both micro- and macroplastic polyethylene pieces inhibited the decomposition of leaf litter in freshwater streams, with microplastics reducing the feeding activity of stream invertebrates. Since leaf litter decomposition is a critical process that nutrients and energy flow into freshwater food webs, plastic pollution could disrupt these fundamental ecosystem functions.
Effects of microsized and nanosized polystyrene on detrital processing and nutrient dynamics in streams
Researchers exposed a stream detrital food chain — leaf-decomposing microbes and a river snail — to nano- and microsized polystyrene particles and found that nanosized particles suppressed microbial growth while boosting certain enzymes, whereas microsized particles reduced leaf nitrogen content and snail feeding, indicating distinct ecological disruption pathways depending on particle size.
Biochar mitigates biodegradable microplastic-induced greenhouse gas emissions in lake sediments: Unraveling microbial mechanisms and particle-size effects
Researchers investigated how biochar addition to lake sediments mitigates greenhouse gas emissions caused by biodegradable microplastics (PBAT), finding that both bulk and nano-biochar suppress CO2 and methane emissions by modulating sediment pH, redox potential, and the microbial communities responsible for methanogenesis.
Biochar applications in microplastic and nanoplastic removal: mechanisms and integrated approaches
This review explores how biochar, a charcoal-like material made from organic waste, can be used to filter microplastics and nanoplastics out of water. Researchers found that biochar works through several mechanisms and becomes even more effective when combined with other water treatment technologies. The study suggests biochar-based approaches could be a practical, low-cost strategy for tackling plastic pollution in water systems.