We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Plastisphere Formation on Microplastics: A Key Mechanism for Potential Toxic Element Accumulation in Wetlands
AI summary Read the abstract
This review summarizes existing research on how microplastics in wetlands get coated with microbial biofilms, called the plastisphere, which can absorb more metal pollutants than bare plastic. It also describes how this biofilm layer can look like food to small organisms, potentially allowing metals to pass up the food chain, though the authors note more real-world studies are needed.
Microplastics (MPs) serve as dynamic vectors for environmental contaminants, rather than inert physical pollutants, and undergo microbial colonisation, transforming pristine polymers into active bio-interfaces known as the plastisphere. This review provides an overview of current literature about the interactions between microplastics, metal pollutants, and microbes in four different aspects in wetlands: (1) Interaction of microplastics with different types of wetland microbes; (2) EPS-mediated adsorption of potentially toxic elements (PTEs) on microplastics (MPs); (3) Factors influencing the adsorption mechanisms of the plastisphere; (4) Trophic transfer of potentially toxic elements carried by the plastisphere. This literature review includes palustrine, estuarine/mangrove, and artificial wetlands, with marine, lake, wastewater, and laboratory studies serving as mechanistic analogues for the wetlands in question. Based on the synthesis of current knowledge, biofouled MPs tend to adsorb more PTEs than pristine MPs, and the adsorption capacity depends on the type of wetland and environmental factors. The physical appearance that resembles natural food is produced by biofilm growth on MPs, and then eaten by small trophic levels. At the same time, the wetland habitats result in rapid PTE desorption, and those metals are then bound to the biofilm, thereby increasing plastisphere bioavailability, systemic tissue translocation, and biomagnification through higher trophic levels. This study illustrates significant gaps in field-based data and emphasises the necessity for real-world environmental exposure investigations to support targeted remediation initiatives.
More Papers Like This
Biofilm formation and its implications on the properties and fate of microplastics in aquatic environments: A review
AI summary Read the abstract
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.
Microplastic surface biofilms: a review of structural assembly, influencing factors, and ecotoxicity
AI summary Read the abstract
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.
Microplastic-Associated Biofilms and Their Role in the Fate of Microplastics in Aquatic Environment
AI summary Read the abstract
This review examines how microbial biofilms attached to microplastics in aquatic environments mediate the accumulation and transfer of chemical pollutants, exploring how the 'plastisphere' community influences the fate and ecotoxicological impact of microplastics and co-contaminants.
The role of microplastics biofilm in accumulation of trace metals in aquatic environments
AI summary Read the abstract
This review examines how biofilms that form on microplastics in aquatic environments enhance the accumulation of trace metals from surrounding water. Researchers found that microorganisms colonizing plastic surfaces produce extracellular substances that facilitate metal sorption, effectively turning microplastics into concentrated carriers of metallic contaminants. The study highlights the dual pollution risk posed by microplastics serving as both physical pollutants and vehicles for toxic metal transport in waterways.
Biofilms on microplastics across ecological systems: Formation mechanisms, community composition, environmental impacts, and ecotoxicity
AI summary Read the abstract
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
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.