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Impact of Weathered and Virgin Polyethylene Terephthalate (Pet) Micro- and Nanoplastics on Growth Dynamics and the Production of Extracellular Polymeric Substance (Eps) of Microalgae
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A brief overview of the interaction between micro/nanoplastics and algae
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This review synthesizes research on how micro- and nanoplastics harm algae — disrupting growth, pigmentation, photosynthesis, and oxidative balance — while also exploring algae as a promising eco-friendly method to remove plastic particles from water. Because algae anchor aquatic food webs as primary producers, MNP-driven algal stress cascades upward through trophic levels, ultimately threatening ecosystem health and human seafood safety.
Impact of weathered and virgin polyethylene terephthalate (PET) micro- and nanoplastics on growth dynamics and the production of extracellular polymeric substances (EPS) of microalgae
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Researchers compared how fresh and sun-weathered PET micro and nanoplastics affect microalgae growth and the sticky substances (EPS) algae produce in response to stress. Weathered plastics triggered more EPS production and had greater effects on algae than fresh plastics did. Since algae form the base of aquatic food chains and most ocean microplastics have been weathered by sunlight, these findings suggest real-world impacts on marine ecosystems may be worse than laboratory studies with fresh plastics indicate.
Persistent Microplastics in Ecosystem: The Role of Microalgae-Microplastic Interactions
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This review examines interactions between microalgae and microplastics in aquatic environments, focusing on how algae can adsorb, ingest, and respond to plastic particles, and how these interactions affect microplastic persistence and transport. Microalgae form the base of aquatic food webs, so their uptake of microplastics initiates the trophic transfer chain that ultimately delivers plastic particles and associated chemical contaminants to human consumers through seafood.
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