离子浓度极化电动分子浓度的理论极限和标度律
Theoretical Limits and Scaling Laws for Electrokinetic Molecular Concentration via Ion Concentration Polarization
摘要:
我们开发的第一个理论模型的分析描述离子浓差极化(ICP)为基础的电动分子浓度,这是不可能的,由于系统的异常复杂。我们定义了两个单独的限制,在一个给定的系统中实现的富集因子,并推导出关键参数的标度律,这是通过数值模拟和实验验证。这项工作为以前观察到的各种实验行为提供了明确的理论解释,同时为基于ICP的浓缩器和其他流体耦合电动系统的工程奠定了坚实的基础。
英文摘要:
We develop the first theoretical model for the analytical description of ion concentration polarization (ICP)-based electrokinetic molecular concentration, which had not been possible due to the extraordinary complexity of the system. We define the two separate limits for the enrichment factor achievable in a given system and derive the scaling laws for critical parameters, which are validated by numerical simulations and experiments. This work provides clear theoretical explanations on the diverse experimental behaviors previously observed yet unexplainable, while setting solid foundation for the engineering of ICP-based concentrators and other fluid-coupled electrokinetic systems.
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