The object
Fionn Ferreira invented a method that binds microplastic particles to ferrofluid and separates them magnetically from water. The claim is limited to a tangible separation method/device and does not imply deployed universal water-treatment infrastructure, municipal adoption, or a universal cleanup solution.
01
What Fionn did
Invented a ferrofluid-based method and device for extracting microplastics from water.
02
Why it matters
The approach turns hard-to-filter microplastic particles into a magnetically removable material stream, a consequential physical-water-treatment concept.
03
Living-status check
ETH Zurich's current 2026 Barnes Group directory lists Ferreira among its PhD students, providing direct current institutional evidence.