Catalytic topological insulator Bi2Se3 nanoparticles for invivo protection against ionizing radiation

Layer-like Bi2Se3 with high active surface area can protect mice against ionizing radiation based on their superior antioxidant activities and electrocatalytic properties. Bi2Se3 NPs can significantly increase the surviving fraction of mice up to 70% after exposure of high-energy radiation of gamma ray. Bi2Se3 NPs behaved as functional free radical scavengers and significantly decreased the level of methylenedioxyamphetamine. In vivo toxicity studies showed that Bi2Se3 NPs did not cause significant side effects in panels of blood chemistry, clinical biochemistry and pathology.104