Department of Chemistry and Drug Technologies, Sapienza University of Rome-P.le Aldo Moro 5, 00185 Rome, Italy.
Biosensors (Basel). 2018 Nov 14;8(4):108. doi: 10.3390/bios8040108.
A single-use electrochemical screen-printed electrode is reported based on biomimetic properties of nanoceria particles (CeNPs). The developed tool showed an easy approach compared to the classical spectrophotometric methods reported in literature in terms of ease of use, cost, portability, and unnecessary secondary reagents. The sensor allowed the detection of the total antioxidant capacity (TAC) in wine samples. The sensor has been optimized and characterized electrochemically and then tested with antioxidant compounds occurred in wine samples. The electrochemical CeNPs modified sensor has been used for detection of TAC in white and red commercial wines and the data compared to the 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid (ABTS)-based spectrophotometric method. Finally, the obtained results have demonstrated that the proposed sensor was suitable for the simple and quick evaluation of TAC in beverage samples.
本文报道了一种基于纳米氧化铈粒子（CeNPs）仿生特性的一次性电化学丝网印刷电极。与文献中报道的经典分光光度法相比，该开发工具在易用性、成本、便携性和不必要的辅助试剂方面具有优势。该传感器可用于检测葡萄酒样品中的总抗氧化能力（TAC）。该传感器已通过电化学方法进行了优化和表征，然后用葡萄酒样品中存在的抗氧化化合物进行了测试。电化学 CeNPs 修饰传感器已用于检测白葡萄酒和红葡萄酒中的 TAC，并将数据与基于 2,2'-联氮-双（3-乙基苯并噻唑啉-6-磺酸）（ABTS）的分光光度法进行了比较。最后，结果表明，该传感器适用于饮料样品中 TAC 的简单快速评估。
