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Investigating on the toxicity and bio-magnification potential of synthetic glitters on Artemia salina
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Researchers assessed the toxic effects of polyethylene terephthalate glitter microplastics on Artemia salina (brine shrimp) as a model zooplankton species. The study found that glitter ingestion caused gut wall damage, decreased cholinesterase activity, and demonstrated biomagnification potential, suggesting that synthetic glitter particles pose measurable toxicological risks to aquatic organisms.
Our research aims to assess the toxic impacts of polyethylene terephthalate (PET) glitters on Artemia salina as a model zooplankton. The mortality rate was assessed using a Kaplan Maier plot as a function of various microplastic dosages. The ingestion of microplastics was confirmed by their presence in digestive tract and faecal matter. Gut wall damage was confirmed by dissolution of basal lamina walls and an increase in the secretory cells. A significant decrease in the activities of cholinesterase (ChE) and glutathione-S-transferase (GST) were noted. A decrease in catalase activity could be correlated to an increase in the generation of reactive oxygen species (ROS). Cysts incubated in presence of microplastics exhibited delay in their hatching into 'umbrella' and 'instar' stages. The data presented in the study would be useful for scientists working on discovering new sources of microplastics, related scientific evidences, image data and model of study.
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Researchers tracked the distribution and toxic effects of polystyrene nanoplastics in brine shrimp, a key model organism for ecotoxicology. They found that nanoplastics accumulated in the gut and, at higher concentrations, caused gut deformities, with the lethal concentration decreasing by nearly half between 24 and 48 hours of exposure. The findings suggest that nanoplastics may also impair the salt gland, affecting osmoregulation and energy allocation in marine organisms.
Ecotoxicological Assessment of “Glitter” Leachates in Aquatic Ecosystems: An Integrated Approach
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Leachates from nine types of commercial glitter were tested for toxicity in freshwater and saltwater model organisms across three soak periods up to 180 days. Photosynthesizing primary producers were most sensitive to glitter leachates, with some formulations causing significant growth inhibition, raising ecotoxicological concerns about this largely overlooked microplastic category.
A Glow before Darkness: Toxicity of Glitter Particles to Marine Invertebrates
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Researchers evaluated the toxicity of glitter microplastic particles on marine invertebrate embryos, finding that both green and white glitter types caused developmental abnormalities in sea urchins and mussels, partly due to chemical leachates.
Toxicity evaluation of polypropylene microplastic on marine microcrustacean Artemia salina: An analysis of implications and vulnerability
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Researchers prepared polypropylene microplastics and tested their toxic effects on the marine crustacean Artemia salina at different life stages. They found that the particles accumulated in the organisms' digestive tracts and caused significant mortality, particularly in the earliest developmental stages. The study demonstrates that polypropylene microplastics pose a real threat to small marine organisms that form the base of ocean food webs.
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Researchers examined the effects of glitter microplastics on Mediterranean mussels and found that smaller particles were retained more in the digestive tract and induced greater oxidative stress, while crumbled glitter fragments amplified toxic responses.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.