Wang Lei, Lian Wenjing, Liu Hongyun
College of Chemistry, Beijing Normal University, Beijing, 100875, People's Republic of China.
Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, People's Republic of China.
Chemistry. 2016 Mar 24;22(14):4825-32. doi: 10.1002/chem.201504812. Epub 2016 Feb 23.
A closed bipolar electrode (BPE) system was developed with electrochromic poly(3-methylthiophene) (PMT) films electropolymerized on the ITO/rGO electrode as one pole of BPE in the reporting reservoir and the bare ITO electrode as another pole of BPE in the analyte reservoir, in which rGO represents reduced graphene oxide. Under a suitable driving voltage (Vtot), the electrochemical reduction/oxidation of electroactive probes, such as H2O2/glutathione (Glu), in the analyte reservoir could induce the reversible color change of PMT films in the reporting reservoir between blue and red. Based on this, a keypad lock with H2O2 , Glu, and Vtot =-3.0 V as the three inputs and the color change of PMT films as the visible output was established. This system was easily operated and did not need to synthesize the complex compounds or DNA molecules. The security system was easy to reset and could be used repeatedly.
开发了一种封闭式双极电极（BPE）系统，其中在报告池中作为BPE一极的ITO/rGO电极上通过电聚合制备了电致变色聚（3-甲基噻吩）（PMT）薄膜，而在分析物池中裸ITO电极作为BPE的另一极，其中rGO代表还原氧化石墨烯。在合适的驱动电压（Vtot）下，分析物池中电活性探针（如H2O2/谷胱甘肽（Glu））的电化学还原/氧化可诱导报告池中PMT薄膜在蓝色和红色之间发生可逆的颜色变化。基于此，建立了一种以H2O2、Glu和Vtot = -3.0 V作为三个输入，PMT薄膜的颜色变化作为可见输出的按键锁。该系统操作简便，无需合成复杂化合物或DNA分子。该安全系统易于重置且可重复使用。
