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61,005 resultsShowing papers similar to Inorganic Nanoparticle and Nanoplastic Transformations and the Impact on Biouptake by Freshwater Algal Cells Using Single Cell and Single Particle Inductively Coupled Plasma Mass Spectrometry
ClearQuantification of palladium-labelled nanoplastics algal uptake by single cell and single particle inductively coupled plasma mass spectrometry
Researchers developed a method using palladium-labelled nanoplastics and single-cell mass spectrometry to quantify nanoplastic uptake by algal cells. The study demonstrated that this technique can measure nanoplastic exposure on a per-cell basis, providing a valuable new tool for understanding how nanoplastics interact with organisms at the base of aquatic food webs.
Influence of microplastics on the toxicity of chlorpyrifos and mercury on the marine microalgae Rhodomonas lens
Researchers examined how polyethylene microplastics influence the toxicity of chlorpyrifos and mercury to the marine microalga Rhodomonas lens, finding that microplastics can modify pollutant bioavailability and alter toxic effects depending on particle surface oxidation state.
Unraveling the impact of phytoplankton secretions on the behavior of metal-containing engineered nanoparticles in aquatic environment
This review examines how tiny algae (phytoplankton) release natural substances that change the way metal nanoparticles behave in water, affecting whether they dissolve, clump together, or get absorbed by organisms. While focused on engineered nanoparticles rather than microplastics, the same biological processes apply to how plastic particles interact with living things in aquatic environments. Understanding these interactions is important for predicting how pollutants, including microplastics, move through water ecosystems and potentially into the food chain.
An ecotoxicological approach towards the understanding of the impacts of micro- and nanoplastics in the marine environment
This PhD thesis investigated how micro- and nanoplastics affect marine microalgae and associated microbial consortia, examining how extracellular polymeric substances mediate plastic-biota interactions and how these effects cascade to higher trophic levels in marine food webs.
Characterisation of microplastics and unicellular algae in seawater by targeting carbon via single particle and single cell ICP-MS
Researchers used single particle and single cell ICP-MS to characterize microplastics and microalgae simultaneously in seawater by targeting carbon signals, demonstrating the technique as a rapid and sensitive tool for distinguishing plastic particles from biological material.
Impact of microalgal biomass and microplastics on the sorption behaviour of pesticides in soil: a comparative study
Researchers examined how microalgal biomass interacts with microplastics to influence pesticide sorption behavior, finding that algal exudates coating MP surfaces altered their affinity for pesticides and affected the overall fate of pesticide-MP complexes in water.
Transformations, interactions, and acute biological responses of nanoplastics on mixotrophic microalgae Poterioochromonas malhamensis
Nanoplastics affected the mixotrophic microalgae Poterioochromonas malhamensis in ways that depended on particle concentration, size, and the surrounding water chemistry. Notably, particle aggregation behavior was the most important factor determining how harmful nanoplastics were to these algae.
Effects of nanoplastics on microalgae and their trophic transfer along the food chain: recent advances and perspectives
This review summarized evidence on how nanoplastics affect microalgae — including growth inhibition, oxidative stress, and altered photosynthesis — and examined trophic transfer of nanoplastics up the food chain, finding that toxicity depended on NP concentration, size, and surface charge.
Microplastic interactions with freshwater microalgae: Hetero-aggregation and changes in plastic density appear strongly dependent on polymer type
Researchers studied interactions between microplastics and freshwater microalgae, finding that microplastics can physically attach to algal cells to form hetero-aggregates, altering both particle behavior and algal physiology.
Research progress of nanoplastics in freshwater
This review summarized the environmental fate, extraction methods, characterization techniques, and biological effects of nanoplastics in freshwater systems, noting that NPs' small size, high surface area, and cell-penetrating ability make them potentially more harmful than microplastics despite being less studied.
Micro/nano-plastics and microalgae in aquatic environment: Influence factor, interaction, and molecular mechanisms.
This review examined the interactions between micro/nanoplastics and microalgae in aquatic environments, summarizing how plastic particle size, surface chemistry, and co-pollutants influence algal toxicity through oxidative stress, photosynthesis inhibition, and gene expression changes.
A critical review of interactions between microplastics, microalgae and aquatic ecosystem function
This review of microplastic-microalgae interactions found that microplastics form distinct epiplastic algal communities that differ from surrounding water communities, and that the interactions are bidirectional — MP properties affect algal physiology while algal surface coatings alter MP behavior and fate.
Multi-omics reveals microplastics disrupt nitrogen assimilation in hydrophytes
Researchers used multi-omics approaches to investigate how microplastics and nanoplastics disrupt nitrogen assimilation pathways in hydrophytes, finding that plastic particle exposure impairs the nutrient removal function these aquatic plants provide in eutrophic water bodies.
Altered Biological Responses of Primary Producers to Multiple Stressors in the Presence of Nanoplastics
This thesis investigated how nanoplastics interact with other environmental stressors — including elevated CO2, temperature, and light — to affect freshwater algae and cyanobacteria. The results show that nanoplastics can alter how aquatic plants respond to climate change, potentially disrupting the base of freshwater food webs.
Nanoplastic/metal interaction under flow conditions: an innovative coupling of microfluidic and spectrometry.
Researchers developed an innovative microfluidic-spectrometry coupling to study nanoplastic interactions with trace metals under flow conditions, investigating how oxidized surface functional groups on nanoplastics influence metal speciation and transport in natural aquatic matrices.
Migration, transformation, and ecological effects of microplastics in aquatic ecosystems
Researchers reviewed how microplastics migrate, transform, and affect aquatic ecosystems, summarizing evidence that physical aging, photochemical weathering, and biofouling reshape particle surfaces and enhance co-contaminant uptake, while ecological effects span oxidative stress and genotoxicity at the organism level to disrupted biogeochemical cycling at the ecosystem level.
Tracking nanoplastics in freshwater microcosms and their impacts to aquatic organisms
Researchers tracked palladium-doped polystyrene nanoplastics in freshwater microcosms and found they caused toxic effects on cyanobacteria, green algae, and crustaceans at varying concentrations, with particle aggregation and surface interactions driving organism-specific impacts.
Nanoplastic/metal interaction under flow conditions: an innovative coupling of microfluidic and spectrometry.
Researchers developed an innovative coupling of microfluidic systems with spectrometry to study nanoplastic and trace metal interactions under controlled flow conditions, examining how oxygenated surface functional groups on degraded plastic particles influence metal speciation and transport in aquatic matrices. The study demonstrated that nanoplastics with carboxylic surface groups formed under environmental degradation conditions can significantly alter trace metal behaviour, with implications for combined toxicity and metal cycling in natural waters.
Toxicological Evaluation and Quantification of Ingested Metal-Core Nanoplastic by Daphnia magna Through Fluorescence and Inductively Coupled Plasma-Mass Spectrometric Methods
Researchers developed a method using both fluorescence microscopy and ICP-MS to simultaneously quantify nanoplastic particles ingested by Daphnia magna and assess associated toxicity, finding dose-dependent uptake and toxic effects. The combined quantification and toxicity approach provides a more complete picture of nanoplastic risk to freshwater zooplankton than either method alone.
Hetero-Aggregation of Nanoplastics with Freshwater Algae and the Toxicological Consequences: The Role of Extracellular Polymeric Substances
Researchers studied how polystyrene and polylactic acid nanoplastics hetero-aggregate with the alga Chlorella vulgaris, finding that extracellular polymeric substances released by algae strongly influenced aggregation behavior and that aggregation altered the toxicity of nanoplastics.
The organism fate of inland freshwater system under micro-/nano-plastic pollution: A review of past decade.
This review synthesized a decade of research on how micro- and nano-plastics affect freshwater organisms including microalgae, macrophytes, zooplankton, benthic invertebrates, and fish, finding that impacts range from impaired photosynthesis and oxidative stress to reproductive disruption and behavioral changes across multiple biological levels.
Genome-Wide Molecular Adaptation in Algal Primary Productivity Induced by Prolonged Exposure to Environmentally Realistic Concentration of Nanoplastics
Researchers exposed algae to three types of nanoplastics at realistic environmental levels for 100 days and found the algae adapted by increasing their numbers and photosynthetic activity. However, this adaptation came with significant changes in gene expression and DNA modification patterns, meaning the nanoplastics fundamentally altered the algae's biology. Since algae are the foundation of aquatic food chains, these hidden molecular changes could have ripple effects through ecosystems that eventually affect human food sources.
Nanoplastics in Aquatic Ecosystems: Impact, Toxicity, Detection, and Remediation Strategies
This review synthesizes current knowledge on nanoplastics in freshwater and marine environments, covering their transformation through photodegradation and biodegradation, ecotoxicological impacts including oxidative stress and reproductive effects in aquatic organisms, and available remediation strategies.
Research advances on impacts micro/nanoplastics and their carried pollutants on algae in aquatic ecosystems: A review
This review examines how micro- and nanoplastics harm algae, which are the foundation of aquatic food chains, by slowing growth, reducing photosynthesis, and damaging cells. The effects are worse when microplastics carry other pollutants on their surfaces, creating a combined toxic effect. Since algae support the entire aquatic food web, damage to these organisms can ripple upward through fish and shellfish to affect the safety of seafood consumed by humans.