Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China.
Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China.
Talanta. 2020 Nov 1;219:121299. doi: 10.1016/j.talanta.2020.121299. Epub 2020 Jun 26.
The NiMnO/C necklace-like microspheres (NLM) were successfully prepared by hydrothermal method and oil bath. This unique necklace-like structure makes them exhibit the enhanced intrinsic oxidase-like activity, as the special interface can help capture electrons from 3,3',5,5'-tetramethylbenzidine. The fabricated NiMnO/C NLM were successfully used as the high-performance oxidase mimetic to catalyze the oxidation of TMB directly for the color reaction. A simple colorimetric method for detection of ascorbic acid by fading was developed, and the high sensitivity with the low detection limit (0.047 μM) was achieved. It is a facile route to fabricate the NiMnO/C NLM as the high-performance oxidase mimetic for colorimetric biosensing.
通过水热法和油浴法成功制备了 NiMnO/C 项链状微球 (NLM)。这种独特的项链状结构使它们表现出增强的内在氧化酶样活性，因为特殊的界面可以帮助从 3,3',5,5'-四甲基联苯胺中捕获电子。所制备的 NiMnO/C NLM 成功用作高性能氧化酶模拟物，直接催化 TMB 的氧化以进行显色反应。建立了一种基于褪色的用于检测抗坏血酸的简单比色法，实现了高灵敏度和低检测限（0.047 μM）。这是一种简便的方法来制备作为高性能氧化酶模拟物的 NiMnO/C NLM 用于比色生物传感。
