Control of electroosmotic flow by polymer coating: effects of the electrical double layer |
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| Authors: | Qiao R |
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| Institution: | Department of Mechanical Engineering, College of Engineering and Science, Clemson University, Clemson, SC 29634, USA. rqiao@clemson.edu |
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| Abstract: | We report on the molecular dynamics simulations of electroosmotic flow control by polymer coating. We show that polymer coating modulates the flow by rendering drag to fluids and by changing the ion distribution and ion-surface interactions in the electrical double layer. Because of the latter two effects, the polymer coating can even enhance the flow under certain conditions. Identifying the effects of these processes is crucial for the rational design of polymer coating for electroosmotic flow control. |
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