Researchers at RMIT University in Australia report a reusable water-treatment material that removes micro- and nanoplastics from water and can also reduce some PFAS chemicals. The work builds on the team’s earlier 2022 breakthrough for microplastics removal, extending the approach to much smaller particles and more complex wastewater conditions. The material uses magnetism to capture contaminants: as water passes through or contacts the magnetic material, microplastics are rapidly taken up, and the treated material can then be recovered using magnets for reuse. According to reporting, test results indicate removal of more than 95% of microplastics from water. The researchers also describe potential for removing certain PFAS compounds, which are widely regulated due to environmental persistence and health concerns. The sources characterize the development as a step toward practical, real-world application for water treatment facilities, focusing on performance against difficult-to-remove contaminants (including nanoscale plastics) and the ability to limit waste and operating costs through material reusability.