Fish Gill-Inspired Bidirectional Porous Polysaccharide Aerogels for Micro/Nanoplastics Removal.

ABSTRACT: Micro/nanoplastics (MNPs) pose a threat to freshwater ecosystems and human health due to their intrinsic toxicity, leaching of harmful degradation byproducts, and transport of pollutants through food chains. However, the efficient removal of MNPs using conventional methods such as filtration, flocculation, and biodegradation remains a significant challenge. Inspired by the structure of fish gills, we developed a sustainable bidirectionally porous polysaccharide-based aerogel composed of chitosan (CS), cellulose nanofibers (CNFs), and polydopamine (PDA) for the effective removal of MNPs. The aerogel demonstrated outstanding adsorption capacities exceeding 300 mg/g for various MNP types, including carboxylated polystyrene (PS-COOH), PS, poly(methyl methacrylate) (PMMA), polyethylene (PE), an

SUBMITTER: Yang Y 

PROVIDER: S-EPMC12635965 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature