Electroosmotically induced hydraulic pumping with integrated electrodes on microfluidic devices.
Electroosmotically induced hydraulic pumping with integrated electrodes on microfluidic devices.
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DOI：
10.1021/ac010048a
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发表时间：
2001-07
影响因子：
7.4
通讯作者：
Timothy E. McKnight;C. Culbertson;S. C. Jacobson;J. Michael Ramsey
中科院分区：
文献类型：
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作者：
Timothy E. McKnight;C. Culbertson;S. C. Jacobson;J. Michael Ramsey
使用集成在基板和盖板界面处的微流体通道内的薄金属电极来证明流体的电渗操纵。通过在玻璃盖板上对电极进行光刻图案化来制造器件，然后将玻璃盖板结合到聚合物基底上，在聚合物基底中铸造通道。聚合物基底用于提供可渗透膜，用于输送和去除在电极处产生的气态电解产物。证明了叉指电极之间的电渗流，并在电极对外部的通道部分中提供了无电场的流体泵送。所得到的泵浦速度被证明是依赖于所施加的电压，而不是所施加的电场强度，和独立的长度的electrochemically泵浦区域。
Electroosmotic manipulation of fluids was demonstrated using thin metal electrodes integrated within microfluidic channels at the substrate and cover plate interface. Devices were fabricated by photolithographically patterning electrodes on glass cover plates that were then bonded to polymeric substrates into which the channels were cast. Polymeric substrates were used to provide a permeable membrane for the transport and removal of gaseous electrolysis products generated at the electrodes. Electroosmotic flow between interdigitated electrodes was demonstrated and provided electric field-free pumping of fluids in sections of the channel outside of the electrode pairs. The resultant pumping velocities were shown to be dependent on the applied voltage, not on the applied field strength, and independent of the length of the electroosmotically pumped region.