New US Patent Published Online - US20220354973A1

Prof. Wu's US Patent "Iron nitride nanoparticle suspension" (US20220354973A1) is published online today. This patent covers the wet ball milling of iron nitride nanoparticles in the presence of a surface active agent. The method solves the challenges in pursing inexpensive, high magnetic moment, low biotoxicity, colloidal stable, and environmentally friendly iron nitride magnetic nanoparticles (MNPs).