Charge Transfer Processes at Microscopic Liquid Interfaces

本研究项目研究微观两相液体颗粒的非均相过程。在分析和表面化学项目的支持下，纽约城市大学皇后学院化学和生物化学系的Michael Mirkin教授使用微米和亚微米大小的金属电极和基于移液管的安培传感器来研究微观界面上的耦合电子和离子转移过程。扫描电化学显微镜用于在包括磷脂囊泡和生物细胞在内的微观领域进行动力学测量。小型电极传感器的使用使耦合电子和离子转移反应的快速动力学测量成为可能。研究结果影响了对生物细胞中能量储存和转化、药物转运、信号传导和代谢的基本理解。这项工作定义了控制由不混相液相形成的界面上电荷传输的基本关系。

This research project investigates heterogeneous processes in microscopic two-phase liquid particles. With the support of the Analytical and Surface Chemistry Program, Professor Michael Mirkin in the Department of Chemistry and Biochemistry at Queens College, City University of New York, uses micrometer- and submicrometer-sized metal electrodes and pipet-based amperometric sensors to investigate coupled electron and ion transfer processes across microscopic interfaces. The scanning electrochemical microscope is employed to perform kinetic measurements in microscopic domains that include phospholipid vesicles and biological cells. The use of small electrode sensors is enabling rapid kinetic measurements of coupled electron and ion transfer reactions. Results impact fundamental understanding of energy storage and conversion, drug transport and signaling and metabolism in biological cells. The work is defining basic relationships that govern charge transport across interfaces formed by immiscible liquid phases.