Biomimetic Intensified Nh/Ch···Π Interaction Via Metal Oxide-Mediated Interfacial Polarization for Robust Nanoplastics Capture by Polyurethane Foam

Biomimetic intensified NH/CH···π interaction via metal oxide-mediated interfacial polarization for robust nanoplastics capture by polyurethane foam

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Researchers engineered a magnetic polyurethane foam by integrating iron oxide nanoparticles that polarize adjacent N-H and C-H bonds, amplifying non-covalent interactions with nanoplastics and achieving a 16-fold higher adsorption capacity than iron oxide alone, with easy magnetic regeneration avoiding energy-intensive centrifugation.

Magnetically recoverable Fe3O4-loaded poly(N-isopropylacrylamide)˗sodium carboxymethyl cellulose hydrogel beads for efficient removal of amine-functionalized polystyrene nanoplastics

Interfacial interaction-driven rapid capture and on-site analysis of nano- and microplastics enabled by multifunctional magnetic adsorbent

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Researchers developed a copper-doped polydopamine-functionalized magnetic silica adsorbent that captures nano- and microplastics within 3 minutes, and using its laccase-like catalytic activity combined with machine learning analysis, enables rapid on-site detection of diverse plastic particle types even at nanoscale concentrations in real water sources.

Harnessing Nanomaterials for the Mitigation of Micro-nanoplastics

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This review examined how engineered nanomaterials — including metal oxides, carbon-based materials, and zero-valent metals — can photocatalytically degrade, adsorb, or facilitate removal of micro- and nanoplastics from the environment. Nanomaterial-based remediation strategies represent a promising next-generation toolkit for addressing plastic pollution at scales relevant to water treatment and environmental cleanup.