School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, PR China.
Food Chem. 2024 Jan 30;432:137246. doi: 10.1016/j.foodchem.2023.137246. Epub 2023 Aug 22.
Melamine added to milk powder can lead to kidney injury and even death, but rapid detection is still hard due to the strong interference of milk powder solution. Herein, the CC/CeO/CNPs mesh was constructed to detect melamine by using the photo-enhanced barrier effects on electrochemical response. Schottky barrier was regulated effectively to produce electrochemical response to melamine by photo-induced electrostatic interaction, which exhibited strong resistance to interference in milk powder solution. Sensitivity was enhanced by nearly 5 times and the lowest detection limit was reduced as low as 0.274 nM. The obtained high recovery (100%-104%) and good stability in milk powder solution indicated the good potential for practical applications. It provides a new opportunity for achieving strong resistance to interference by using the photo-enhanced barrier driving effect on electrochemical response.
三聚氰胺添加到奶粉中会导致肾脏损伤甚至死亡，但由于奶粉溶液的强烈干扰，快速检测仍然很困难。在此，通过利用光电增强的阻挡效应在电化学生物传感器上构建了 CC/CeO/CNPs 网来检测三聚氰胺。通过光诱导静电相互作用有效地调节肖特基势垒，从而对三聚氰胺产生电化学生物传感器响应，对奶粉溶液中的干扰表现出很强的抵抗力。灵敏度提高了近 5 倍，最低检测限低至 0.274 nM。在奶粉溶液中获得的高回收率（100%-104%）和良好的稳定性表明了其在实际应用中的良好潜力。它为利用光电增强的阻挡驱动效应在电化学生物传感器上实现强抗干扰能力提供了新的机会。
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