We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Surface functional groups and biofilm formation on microplastics: Environmental implications
Summary
This review explains that microplastics in the environment are not the same as freshly made plastic -- weathering and aging change their surface chemistry and allow bacteria to form films on them. These changes make microplastics more toxic and better at absorbing and transporting other pollutants through water and soil. Understanding this transformation is important because it means the microplastics humans encounter are likely more harmful than lab-tested pristine particles suggest.
Microplastics (MPs) contamination is becoming a significant environmental issue, as the widespread omnipresence of MPs can cause many adverse consequences for both ecological systems and humans. Contrary to what is commonly thought, the toxicity-inducing MPs are not the original pristine plastics; rather, they are completely transformed through various surface functional groups and aggressive biofilm formation on MPs via aging or weathering processes. Therefore, understanding the impacts of MPs' surface functional groups and biofilm formation on biogeochemical processes, such as environmental fate, transport, and toxicity, is crucial. In this review, we present a comprehensive summary of the distinctive impact that surface functional groups and biofilm formation of MPs have on their significant biogeochemical behavior in various environmental media, as well as their toxicity and biological effects. We place emphasis on the role of surface functional groups and biofilm formation as a means of influencing the biogeochemical processes of MPs. This includes their effects on pollutant fate and element cycling, which in turn impacts the aggregation, transport, and toxicity of MPs. Ultimately, future research studies and tactics are needed to improve our understanding of the biogeochemical processes that are influenced by the surface functional groups and biofilm formation of MPs.
Sign in to start a discussion.
More Papers Like This
Physicochemical behavior and ecological risk of biofilm-mediated microplastics in aquatic environments
This review explores how biofilm formation on microplastics in water environments changes their physical and chemical behavior, potentially increasing their ecological risks. Researchers found that biofilm-coated microplastics more readily absorb pollutants and antibiotic resistance genes, and may disrupt gut microbiota in organisms that ingest them. The findings suggest that the biological aging of microplastics in nature makes them more dangerous than freshly produced particles.
Colonization characteristics and surface effects of microplastic biofilms: Implications for environmental behavior of typical pollutants
This review examines how bacteria colonize microplastic surfaces in water, forming biofilms that change how the plastics behave in the environment. These biofilms alter the surface properties of microplastics and affect how they absorb and transport heavy metals and other pollutants. Understanding biofilm formation on microplastics is important because it can make the particles more dangerous by concentrating toxic substances that could eventually enter the food chain.
Biofilm on microplastics in aqueous environment: Physicochemical properties and environmental implications
This review examines how bacteria and other microorganisms form sticky films called biofilms on microplastic surfaces in water. These biofilms change how microplastics move through the environment and increase their ability to absorb pollutants like heavy metals, pesticides, and antibiotics. Biofilm-coated microplastics may also carry harmful bacteria, making them a greater potential health risk than clean microplastic particles.
Effect of weathering on environmental behavior of microplastics: Properties, sorption and potential risks
This review examines how environmental weathering changes the physical and chemical properties of microplastics, affecting their ability to absorb pollutants and their toxicity to organisms. Researchers found that weathered microplastics develop altered surface chemistry, increased surface area, and changed color, all of which influence how they interact with contaminants and are ingested by aquatic life. The study also evaluates the toxic potential of chemical byproducts released during the weathering process itself.
Microplastic surface biofilms: a review of structural assembly, influencing factors, and ecotoxicity
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.