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    • 10. 发明申请
    • ELECTRODEPOSITION OF REDOX POLYMERS AND CO-ELECTRODEPOSITION OF ENZYMES BY COORDINATIVE CROSSLINKING
    • 氧化还原聚合物的电沉积和辅助交联的酶的共沉淀
    • WO2003025257A1
    • 2003-03-27
    • PCT/US2002/030105
    • 2002-09-20
    • THERASENSE, INC.
    • HELLER, AdamGAO, ZhiqiangDEQUAIRE, Murielle
    • C25D9/02
    • C25D9/02C12Q1/004C12Q1/6825C25D5/18
    • Thin films of transition metal complex-based redox polymers (94) are electrodeposited on electrodes (90) via application of fixed or cycled potential. When hydrated, an electrodeposited film conducts electrons by electron exchange between backbone-bound, but mobile, functional segments of its redox polymer constituents. These functional segments, or redox complexes, have labile ligands, such as chloride anions, for example, in their coordinating spheres. The backbones of the redox polymers have strongly coordinating ligands, such as pyridine- or imidazole-containing functions, for example, which are generally not coordinated prior to deposition. Electrodeposition results from coordinative crosslinking by exchange of labile ligands and strongly coordinating ligands between polymer chains, provided sufficient functional segments of the redox polymers are present at the electrode surface. When a biological macromolecule or protein (98), such as redox enzyme, is added to the solution from which the redox polymer is electrodeposited, it is co-electrodeposited on the electrode surface.
    • 基于过渡金属络合物的氧化还原聚合物(94)的薄膜通过施加固定或循环电位电沉积在电极(90)上。 当水合时,电沉积膜通过其氧化还原聚合物组分的主链结合但可移动的功能区段之间的电子交换导电。 这些功能区段或氧化还原络合物在其配位球中具有不稳定的配体,例如氯化物阴离子。 氧化还原聚合物的主链具有强配位配体,例如含吡啶或咪唑的功能,例如在沉积之前通常不协调。 电沉积是通过交换不稳定配体和在聚合物链之间强配位配体而产生的协调交联,只要氧化还原聚合物的足够的功能区段存在于电极表面。 当将生物大分子或蛋白质(98)如氧化还原酶加入到电沉积氧化还原聚合物的溶液中时,它共同电沉积在电极表面上。