Redox transitions in an electrolyte-free myoglobin fluid.
Redox transitions in an electrolyte-free myoglobin fluid.
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DOI：
10.1021/ja4104606
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发表时间：
2013-12
影响因子：
15
通讯作者：
K. Sharma;K. Bradley;Alex P. S. Brogan;S. Mann;A. Perriman;D. Fermín
中科院分区：
文献类型：
--
作者：
K. Sharma;K. Bradley;Alex P. S. Brogan;S. Mann;A. Perriman;D. Fermín
与血红素辅基在肌红蛋白聚合物表面活性剂无溶剂的液体中的氧化还原反应进行了研究，第一次在电解质溶液的情况下。来自生物流体的循环伏安图表现出与熔体中的移动的电荷的平面扩散一致的响应。温度依赖性的动态电化学和流变学响应的合理化血红素中心之间的有效电子跳跃率和本征离子物种在粘性蛋白质液体中的运输。
Redox responses associated with the heme prosthetic group in a myoglobin-polymer surfactant solvent-free liquid are investigated for the first time in the absence of an electrolyte solution. Cyclic voltammograms from the biofluid exhibit responses that are consistent with planar diffusion of mobile charges in the melt. Temperature-dependent dynamic electrochemical and rheological responses are rationalized in terms of the effective electron hopping rate between heme centers and the transport of intrinsic ionic species in the viscous protein liquid.