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61,005 resultsShowing papers similar to Salinity Moderated the Toxicity of Zinc Oxide Nanoparticles (ZnO NPs) towards the Early Development of Takifugu obscurus
ClearEcological Risks of Zinc Oxide Nanoparticles for Early Life Stages of Obscure Puffer (Takifugu obscurus)
This study tested the toxic effects of zinc oxide nanoparticles on the early life stages of the obscure puffer fish, finding reduced hatching rates, deformities in larvae, and significant mortality at higher concentrations. While focused on zinc oxide rather than microplastics, the research is relevant because zinc oxide nanoparticles from sunscreen are commonly found alongside microplastics in aquatic environments. The combined presence of multiple nanoparticle pollutants may compound the risks to aquatic ecosystems and the fish people eat.
Toxic Effects and Mechanisms of Silver and Zinc Oxide Nanoparticles on Zebrafish Embryos in Aquatic Ecosystems
Researchers tested the toxic effects of silver and zinc oxide nanoparticles on zebrafish embryos in natural water environments. They found that both nanoparticle types caused acute toxicity, increased oxidative stress, apoptosis, and autophagy, though toxicity was lower in natural water compared to pure water due to environmental interactions. The study suggests that the complex components in natural water may transform nanoparticles in ways that reduce but do not eliminate their harmful effects on aquatic organisms.
The Effects of Environmental Factors on the Toxicity of Nanomaterials in Fish
This review examined how environmental factors such as temperature, pH, and salinity modify the toxicity of nanomaterials and nanoplastics in fish. Understanding how contextual factors alter toxicity is important for accurately assessing the real-world risks of nanoplastics to aquatic life.
Particles rather than released Zn2+ from ZnO nanoparticles aggravate microplastics toxicity in early stages of exposed zebrafish and their unexposed offspring
Researchers investigated the combined effects of polystyrene microplastics and zinc oxide nanoparticles on zebrafish embryos and their unexposed offspring. They found that ZnO particles adhered to microplastic surfaces and amplified toxic effects including growth inhibition, oxidative stress, and hormonal disruption, with impacts carrying over to the next generation. Interestingly, dissolved zinc ions actually reversed some microplastic toxicity, suggesting that it is the physical particles rather than the released zinc that drive the increased harm.
Evaluating the Effectiveness of Vitamins E and C in Mitigating the Toxic Effects of Zinc Oxide Bulk and Nanoparticles on Fish: A Review
This paper is not relevant to microplastics — it is a review of how vitamins E and C can reduce the toxic effects of zinc oxide nanoparticles on fish in aquatic environments.
Functional silver-based nanomaterials affecting zebrafish development: the adverse outcomes in relation to the nanoparticle physical and chemical structure
Researchers investigated how silver-based nanoparticles with different physical and chemical properties affect zebrafish embryo development. They found that nanoparticles coated with the polymer hydroxyethyl cellulose, combined with small particle size and a positive surface charge, showed increased biological reactivity toward the embryos. The study highlights how the design and surface chemistry of nanomaterials can significantly influence their toxicity to aquatic organisms.
Toxicity of nanoplastics to zooplankton is influenced by temperature, salinity, and natural particulate matter
Researchers found that increased temperature and salinity promoted nanoplastic toxicity to zooplankton, while the presence of organic matter and natural colloids mitigated toxic effects, suggesting environmental conditions significantly modulate nanoplastic risks.
Effects of Zinc Oxide Nanoparticle Exposure on Human Glial Cells and Zebrafish Embryos
Researchers investigated the toxicity of zinc oxide nanoparticles on human brain glial cells and zebrafish embryos, finding that both were harmed at relatively low concentrations. The nanoparticles reduced cell viability in the glial cells and caused developmental abnormalities in the zebrafish embryos. The study suggests that the dissolved zinc ions released from these widely used nanoparticles play a significant role in their toxic effects on the nervous system.
Evaluation of distribution, chemical speciation, and toxic effects of CuO and ZnO nanoparticles in Daphnia magna and Danio rerio
Copper oxide and zinc oxide nanoparticles were toxic to both water fleas (Daphnia magna) and zebrafish at low concentrations, accumulating in tissues and causing oxidative damage. These nanoparticles are used in plastics as stabilizers and antimicrobials, making their aquatic toxicity relevant to assessing risks from plastic-derived nanoparticle release.
Catfish as an Ecotoxicological Model for Assessment of Nanoparticle Toxicity Profiling
This review examines catfish as an ecotoxicological model organism for assessing nanoparticle toxicity, evaluating approaches to using catfish as bioindicators in aquatic ecosystems where nanomaterial contamination poses poorly understood environmental risks.
Sensitivity of Hydra vulgaris to Nanosilver for Environmental Applications
Researchers tested a novel citrate and L-cysteine functionalized silver nanoparticle formulation against freshwater Hydra vulgaris, characterizing its environmental safety and finding that the nanoparticles caused dose-dependent toxicity, providing a useful benchmark for assessing nanomaterial risks in aquatic ecosystems.
Nanoplastic toxicity towards freshwater organisms
This systematic review covers nanoplastic toxicity toward freshwater organisms, examining both conventional and bioplastic nanoplastics, and finds that size, shape, and surface chemistry all influence toxicity across a range of invertebrate and vertebrate freshwater species.
Acute Aquatic Toxicity to Zebrafish and Bioaccumulation in Marine Mussels of Antimony Tin Oxide Nanoparticles
Researchers studied the toxicity and bioaccumulation of antimony tin oxide nanoparticles in zebrafish and marine mussels, finding low acute toxicity in zebrafish but measurable bioaccumulation in mussel tissues, highlighting potential risks in aquatic food chains.
Combined toxic effects of environmental predominant microplastics and ZnO nanoparticles in freshwater snail Pomaceae paludosa
Researchers assessed the toxic effects of zinc oxide nanoparticles and polypropylene microplastics, both individually and combined, on the freshwater snail Pomeacea paludosa over 28 days. The study found that combined exposure caused more severe oxidative stress, disrupted antioxidant and digestive enzyme activity, and led to tissue damage and DNA damage compared to individual pollutant exposure. Evidence indicates that microplastics interacting with nanoparticles can amplify toxic effects in freshwater organisms.
The Effect of the Chorion on Size-Dependent Acute Toxicity and Underlying Mechanisms of Amine-Modified Silver Nanoparticles in Zebrafish Embryos
Researchers tested whether the chorion (outer egg membrane) of zebrafish embryos protects against silver nanoparticle toxicity, finding that dechorionated embryos were significantly more sensitive, with effects depending on nanoparticle size and surface modification.
Nanoplastics in Aquatic Environments: Impacts on Aquatic Species and Interactions with Environmental Factors and Pollutants
This review examines how nanoplastics affect aquatic species, focusing on their cellular and molecular toxicity as well as how environmental factors like temperature, salinity, and co-existing pollutants influence their harmful effects. Researchers found that nanoplastics can be absorbed more easily than larger plastic particles, transfer through food webs, and disrupt cellular function in aquatic organisms. The study highlights the need to consider real-world environmental conditions when assessing nanoplastic risks.
Charge-dependent negative effects of polystyrene nanoplastics on Oryzias melastigma under ocean acidification conditions
This study tested the combined effects of differentially charged polystyrene nanoplastics and ocean acidification on the marine fish Oryzias melastigma, finding that surface charge significantly influenced both independent and interactive toxicity. Negatively charged particles were generally more harmful, with effects exacerbated under acidified conditions.
Shape-Dependent Toxicity of Silver Nanoparticles on Freshwater Cnidarians
Researchers investigated how the shape of silver nanoparticles affects their toxicity to freshwater Hydra vulgaris, finding that triangular nanoplates were significantly more toxic than spherical or rod-shaped particles, challenging the assumption that toxicity is shape-independent.
Single and Combined Toxicity Effects of Zinc Oxide Nanoparticles: Uptake and Accumulation in Marine Microalgae, Toxicity Mechanisms, and Their Fate in the Marine Environment
This review examined the toxicity of zinc oxide nanoparticles to marine microalgae, which form the base of the aquatic food chain. Researchers found that toxicity mechanisms include the release of zinc ions, direct interaction with algae cells, and generation of reactive oxygen species, and the study highlights the need for more research on combined pollutant exposures that better reflect real-world conditions.
Size-dependent toxicity of nano- and microplastics with zinc oxide nanoparticles in the marine rotifer Brachionus koreanus
Researchers studied the combined toxic effects of zinc oxide nanoparticles with nano- and microplastics on marine rotifers. They found that the presence of plastic particles increased the toxicity of zinc oxide, with nanoplastics causing more harm than microplastics, and the combined exposure reduced reproduction and population growth. The study demonstrates that microplastics can amplify the harmful effects of other environmental contaminants on small marine organisms.
Toxicological Mechanism of the Size–Form Synergy of Nano-Copper Oxide in Danio rerio
This study compared the toxicity of copper oxide nanoparticles (CuO-NPs) of different sizes and morphologies in zebrafish (Danio rerio). Smaller CuO-NPs caused greater oxidative stress and developmental toxicity, demonstrating that particle size and form are key determinants of nanotoxicity in aquatic organisms.
Inhibition of Xenobiotics Transporters’ Efflux Ability after Nanoplastics Exposure in Larval Japanese Medaka
Nanoplastics exposure in larval Japanese medaka fish disrupted the efflux activity of ATP-binding cassette transporters, which normally protect cells by pumping out xenobiotics and toxins. The finding suggests that nanoplastics can impair a key cellular defense mechanism in fish, potentially increasing vulnerability to co-occurring chemical pollutants.
Natural Bioactive Phytocompounds to Reduce Toxicity in Common Carp Cyprinus carpio: A Challenge to Environmental Risk Assessment of Nanomaterials
Researchers investigated the toxic effects of copper oxide nanoparticles on common carp and found that Myristica fragrans seed extract provided protective benefits by reducing oxidative stress and mitigating nanoparticle-induced damage.
Toxicological Effects of Nanomaterials on the Aquatic Biota
This review examines the toxicological effects of nanomaterials on aquatic organisms, covering engineered nanomaterials used in industrial applications and their entry into aquatic environments through wastewater and runoff. The review synthesizes evidence on how nanomaterial properties such as size, surface chemistry, and composition determine their bioavailability, uptake, and toxicity across diverse aquatic biota.