2-Mercaptobenzothiazole (MBT) poses an unignorable risk to the aquatic environment and human health. Traditional analysis and prevention methods are unsuitable for broader applications due to their complexity and high-cost instruments. To address these challenges, a novel CuO@MnO (CM) nanozyme has been designed to establish absorbance-colorimetric dual-mode sensing and modulate the content of MBT through reactive oxygen species (ROS) mediated oxidative degradation. CM nanozyme exhibits notable catalytic ability with K 13.6 μM and V 0.763 μM/s. Furthermore, by integrating the generated O, O and •OH in the presence of O, the absorbance and colorimetric method for MBT sensing is developed, offering a linear detection range from 0.1 to 15 μM through the color change of 3,3′,5,5′-tetramethylbenzidine (TMB) and TMBox. Besides, the CM nanozyme can oxidatively decompose MBT, significantly reducing its biotoxicity without needing photocatalytic auxiliary equipment. This work presents a promising MBT detection and degradation approach in future applications.

中文翻译：

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一体化高性能 CuO@MnO2 纳米酶：双信号通道 2-巯基苯并噻唑传感和无设备氧化降解


2-巯基苯并噻唑（MBT）对水生环境和人类健康构成不可忽视的风险。传统的分析和预防方法由于其复杂性和高成本仪器而不适合更广泛的应用。为了应对这些挑战，设计了一种新型 CuO@MnO (CM) 纳米酶来建立吸光度-比色双模式传感，并通过活性氧 (ROS) 介导的氧化降解来调节 MBT 的含量。 CM 纳米酶表现出显着的催化能力，K 为 13.6 μM，V 为 0.763 μM/s。此外，通过在 O 存在的情况下整合生成的 O、O 和·OH，开发了用于 MBT 传感的吸光度和比色方法，通过 3,3',5 的颜色变化提供 0.1 至 15 μM 的线性检测范围。 ,5'-四甲基联苯胺 (TMB) 和 TMBox。此外，CM纳米酶可以氧化分解MBT，显着降低其生物毒性，无需光催化辅助设备。这项工作为未来的应用提供了一种有前景的 MBT 检测和降解方法。