Synergistic effects between polyvinylpyrrolidone and oxygen vacancies on improving the oxidase-mimetic activity of flower-like CeO2nanozymes

The synergy between polyvinylpyrrolidone and enriched oxygen vacancies can promote the adsorption of reactants (TMB and O₂) and desorption of reaction products, which results in the enhanced oxidase-mimetic activity of CeO₂nanoflowers.