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Nanoceria Nanozyme — Redox-Cycling Antioxidant Simulator

Interactive 3D model of a cerium-oxide (CeO2-x) nanoparticle acting as a self-regenerating antioxidant nanozyme: watch surface Ce3+/Ce4+ sites cycle through SOD-mimetic and catalase-mimetic steps as they scavenge reactive oxygen species.

Chemistry & Materials3DModerate60 FPS📱 Mobile-adapted

Cerium-oxide (CeO_2-x) nanoparticles carry oxygen vacancies that let surface cerium ions shuttle between Ce³⁺ and Ce⁴⁺, giving the particle both superoxide-dismutase-mimetic and catalase-mimetic catalytic activity — a self-regenerating "nanozyme". This simulator renders such a nanoparticle in 3D with a live population of Ce³⁺/Ce⁴⁺ surface sites: incoming superoxide radicals are neutralized by Ce³⁺ sites, which oxidize to Ce⁴⁺ and then regenerate after a catalase-mimetic turnover step, releasing O₂. Tune the particle's diameter (surface-to-volume ratio), the radical influx rate and the turnover time, and watch the Ce³⁺/Ce⁴⁺ ratio, scavenging rate and cumulative catalytic turnovers respond in real time.

⚙ Under the hood

Watch a cerium-oxide (CeO2-x) nanoparticle act as a self-regenerating antioxidant nanozyme, cycling surface Ce3+/Ce4+ sites through SOD-mimetic and catalase-mimetic reactions to scavenge reactive oxygen species.

nanochemistrynanozymecerium oxideredox catalysisantioxidantreactive oxygen species

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install