We describe herein the synthesis and electrochemical polymerization of a viologen monomer functionalized by a biotin group and the use of its redox properties for the impedimetric sensing of protein binding. The electrochemical oxidation of the pyrrole group at 0.85 V in CH3CN led to a biotinylated polypyrrole film allowing the successive anchoring of an avidin layer and a biotinylated cholera toxin
我们在本文中描述了由生物素基团官能化的紫精单体的合成和电化学聚合,以及其氧化还原特性用于蛋白质结合的阻抗感测的用途。CH 3 CN中0.85 V时吡咯基团的电化学氧化导致生物素化的聚吡咯膜得以连续锚定亲和素层和生物素化的霍乱毒素层。在溶液中没有氧化还原探针的情况下,在-0.45 V / SCE下进行的EIS显示抗霍乱毒素抗体的特异性固定。