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In this paper, platinum (Pt)–selenium (Se) nanostructures and Pt nanoparticles were synthesized by a facile one-step chemical reduction route and their catalytic performance was evaluated as oxidase mimic. pp keren wanita The results of structure characterization revealed that Pt–Se nanostructures consist of Pt and Se atoms (the Pt/Se atomic molar ratio is approximately 7:3), while Pt nanoparticles . couple pp wa anime