Brady Áine, Wagner Michal, Forster Robert J
School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
FutureNeuro, SFI Research Centre for Chronic and Rare Neurological Diseases, Dublin City University, Dublin 9, Ireland.
Chem Commun (Camb). 2024 Nov 5;60(89):13000-13003. doi: 10.1039/d4cc03996c.
The ability to induce different potentials in different regions of a (bipolar) electrode could transform applications such as on-demand drug delivery, the electrostimulation of biological cells, the development of advanced electroceuticals, and multi-analyte detection devices where different analytes could be wirelessly detected in different regions of a single sensing surface dramatically simplifying the device design. Here, we demonstrate the use of multiple feeder electrodes to control the electric field distribution in solution thus changing the potential induced in different regions of the bipolar electrode depending on the feeder voltage, polarity and feeder electrode position. The principle is demonstrated for the deposition of films of the conducting polymer, Poly(3,4-EthyleneDiOxyThiophene) (PEDOT), without the need for a physical template to control the regions in which polymer deposits.
在（双极）电极的不同区域诱导不同电位的能力可以改变诸如按需药物递送、生物细胞的电刺激、先进电疗药物的开发以及多分析物检测设备等应用。在多分析物检测设备中，不同的分析物可以在单个传感表面的不同区域进行无线检测，这极大地简化了设备设计。在此，我们展示了使用多个馈线电极来控制溶液中的电场分布，从而根据馈线电压、极性和馈线电极位置改变双极电极不同区域感应的电位。这一原理通过导电聚合物聚（3,4 - 乙撑二氧噻吩）（PEDOT）薄膜的沉积得到了证明，无需物理模板来控制聚合物沉积的区域。
