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Biofilm formation and its implications on the properties and fate of microplastics in aquatic environments: A review
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Researchers reviewed how microplastics in water attract and support communities of bacteria and other microorganisms that form biofilms — living coatings that alter the plastic particles' movement, help them carry pathogens, and affect how toxic chemicals attached to the plastic are absorbed by living things. Understanding this "plastisphere" ecosystem is critical for predicting where microplastics go and how harmful they become.
Particulate plastic fragments (micro and nano-plastics) in aquatic environments provide abundant solid substrates, which serve as an important habitat for a variety of microorganisms. Surfaces of microplastics (MPs) exhibit hydrophobicity that facilitate the adsorption of dissolved organic carbon (DOC) in the aquatic environment. Furthermore, MPs act as substrata, as well as a carbon source including the readily bioavailable DOC, which promote the formation of microbial biofilms. These biofilms have varied metabolic actions that govern the subsequent succession of micro- and meso-organisms habitation of MPs. The assemblage of ecosystems colonising the plastic environment is often referred to as the “plastisphere”. Polymer type, environmental conditions, including nutrient status, salinity, and season, affect the microbial composition of the biofilm. Microbial habitation accelerated by biofilm formation on particulate plastics enables the movement of microorganisms, especially in the aquatic environment, and impacts the transport and toxicity of contaminants associated with these particulate plastic fragments. This review paper describes the processes of microbial habitation and subsequent biofilm formation, the factors affecting biofilm formation, and the implications of biofilm formation on the mobility of microorganisms, degradation of MPs, and the bioavailability of contaminants associated with MPs.
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This review examines how biofilms — communities of microorganisms that form on microplastic surfaces — affect the fate and ecological effects of plastic pollution. Biofilm formation alters how microplastics are transported, ingested, and degraded in the environment, and the plastisphere can harbor pathogens and antibiotic-resistant bacteria that may pose risks to human health.
Microplastic-Associated Biofilms and Their Role in the Fate of Microplastics in Aquatic Environment
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This review examines how biofilms — communities of microorganisms that coat microplastics — change the behavior of plastic particles in aquatic environments, affecting how they move, sink, and interact with ecosystems. Understanding biofilm formation on microplastics is key to predicting where these particles end up and what risks they pose to water quality and aquatic life.
Biofilms on microplastics across ecological systems: Formation mechanisms, community composition, environmental impacts, and ecotoxicity
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Tiny plastic particles floating in water, soil, and air quickly get coated with layers of bacteria, fungi, and other microbes, kind of like plaque on teeth, forming what scientists call a "plastisphere." This review pulls together existing research showing these microbial coatings can make microplastics more dangerous by helping them carry disease-causing germs, antibiotic-resistant genes, and toxic chemicals like heavy metals and PFAS ("forever chemicals") into our food and water. The takeaway: microplastics aren't just plastic, they're rafts for harmful microbes and pollutants, which means understan
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This review explores how microbial biofilms form on microplastic surfaces in natural environments, creating tiny ecosystems known as the plastisphere. Researchers found that these biofilms change the physical and chemical properties of microplastics and can significantly alter their toxicity to living organisms. The study emphasizes that most toxicity research still uses pristine microplastics, which may not accurately reflect the real-world risks posed by biofilm-coated particles.
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