S‐Click Reaction for Isotropic Orientation of Oxidases on Electrodes to Promote Electron Transfer at Low Potentials
作者:Lin Xia、Ming‐Jie Han、Lu Zhou、Aiping Huang、Zhaoya Yang、Tianyuan Wang、Fahui Li、Lu Yu、Changlin Tian、Zhongsheng Zang、Qing‐Zheng Yang、Chenli Liu、Wenxu Hong、Yi Lu、Lital Alfonta、Jiangyun Wang
DOI:10.1002/anie.201909203
日期:2019.11.11
efficient electron transfer route between redox enzymes and electrodes is key for converting enzyme-catalyzed reactions into electrochemical signals, and for the development of robust, sensitive, and selective biosensors. We demonstrate that the site-specific incorporation of a novel synthetic amino acid (2-amino-3-(4-mercaptophenyl)propanoic acid) into redox enzymes, followed by an S-click reaction to wire
电化学传感器对于即时检验(POCT)和可穿戴传感设备必不可少。在氧化还原酶和电极之间建立有效的电子转移途径,对于将酶催化的反应转化为电化学信号,以及开发坚固,灵敏和选择性的生物传感器至关重要。我们证明了一种新型合成氨基酸(2-氨基-3-(4-巯基苯基)丙酸)在氧化还原酶中的位点特异性掺入,然后通过S-点击反应将酶连接到电极上,促进了电子的产生。转移。制成的生物传感器演示了血液和汗液样本中色氨酸(Trp)的实时和选择性监测,线性范围为0.02-0.8 mm。