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A label-free electrochemical immunosensor based on rhombic dodecahedral Cu<inf>3</inf>Pt nanoframes with advanced oxygen reduction performance for highly sensitive alpha-fetoprotein detection
发布时间：2021-03-15
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- 关键字：Platinum alloys;Binary alloys - Chlorine compounds - Copper alloys - Electrolytic reduction - Immunosensors - Oxygen
- 摘要：Herein, rhombic dodecahedral Cu<inf>3</inf>Pt nanoframes (Cu<inf>3</inf>Pt NFs) were prepared via solvothermal strategy using theobromine as the reductant and structure-directing agent, coupled with cetyltrimethylammonium chloride (CTAC) as the co-structure-director. The samples showed dramatically boosted catalytic performance for oxygen reduction reaction (ORR), owing to their highly open structures with enlarged specific surface areas. Using Cu<inf>3</inf>Pt NFs catalyzed ORR as signal amplification platform, a novel electrochemical immunosensor was constructed to monitor alpha-fetoprotein (AFP). The as-fabricated immunosensor displayed a wide linear range of 0.1–10<sup>4</sup> pg mL<sup>–1</sup> and a low detection limit of 0.033 pg mL<sup>–1</sup>.<br/> © 2019 Elsevier B.V.
- 卷号：288
- 是否译文：否
