A high surface area, Pt-Ir coating was electrodeposited onto the contacts of Advanced Bionics HiFocus 1j electrode arrays. The coating was imaged using optical and scanning electron microscopy (SEM) and the impedance was directly measured using clinically relevant voltage transients of biphasic pulses as short as 17 μs. The coating, which SEM showed to completely cover the underlying substrate, decreased the polarization impedance of 17 μs and 32 μs pulses by 91% and 93%, respectively.

中文翻译：

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低阻抗高表面积Pt-Ir电沉积在人工耳蜗电极上

将高表面积的Pt-Ir涂层电沉积到Advanced Bionics HiFocus 1j电极阵列的触点上。使用光学和扫描电子显微镜（SEM）对涂层成像，并使用临床相关的双相脉冲（短至17μs）瞬态电压直接测量阻抗。SEM显示该涂层完全覆盖了下层基板，使17μs和32μs脉冲的极化阻抗分别降低了91％和93％。