Direct electrochemistry of cytochrome C at nanocrystalline boron-doped diamond.
Direct electrochemistry of cytochrome C at nanocrystalline boron-doped diamond.
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DOI：
10.1021/ja027019h
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发表时间：
2002-08
影响因子：
15
通讯作者：
S. Haymond;G. Babcock;G. Swain
中科院分区：
文献类型：
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作者：
S. Haymond;G. Babcock;G. Swain
在纳米晶硼掺杂金刚石薄膜电极上测量马心细胞色素 c 的直接电子转移。对于未经处理的金刚石，观察到准可逆、扩散控制的循环伏安响应。峰值电流随浓度线性变化，重要的是，不存在电极污垢。在氢封端且不带电的表面（即没有可电离的碳-氧官能团）上观察到的结果提出了关于细胞色素 c 相对快速的电极动力学所必需的表面相互作用的有趣问题。
Direct electron transfer of horse heart cytochrome c is measured at a nanocrystalline boron-doped diamond thin-film electrode. A quasi-reversible, diffusion-controlled cyclic voltammetric response is observed for untreated diamond. The peak currents change linearly with the concentration, and importantly, there is no electrode fouling. The results, observed for a hydrogen-terminated and uncharged surface, (i.e., no ionizable carbon-oxygen functional groups), raise interesting questions about the necessary surface interactions of cytochrome c for relatively rapid electrode kinetics.