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Pseudomonas Stutzeri May Alter the Environmental Fate of Polystyrene Nanoplastics by Trapping Them with Increasing Extracellular Polymers
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Pseudomonas Stutzeri may alter the environmental fate of polystyrene nanoplastics by trapping them with increasing extracellular polymers
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Researchers found that the denitrifying bacterium Pseudomonas stutzeri physically traps polystyrene nanoplastics within secreted extracellular polymers, which impairs bacterial growth and nitrogen removal gene expression while altering the particles' environmental fate and dispersal.
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Researchers reviewed microbial nanobioremediation strategies — including bacterial biofilm formation, enzymatic degradation, and engineered microbial consortia — for breaking down micro- and nanoplastics in contaminated environments, while cataloging the significant challenges of slow degradation rates and toxicity to the remediating organisms. Developing effective biological cleanup methods is critical because micro- and nanoplastics are too small and widely distributed for mechanical collection, requiring in-situ solutions that work at the molecular level.
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