Leonard Edward F, Aucoin Christian P, Nanne Edgar E
Department of Chemical Engineering Columbia University in the City of New York.
Colloids Surf A Physicochem Eng Asp. 2006 Jul 20;282-283:75-78. doi: 10.1016/j.colsurfa.2006.02.061.
A microfluidic device for the measurement of solute diffusion as well as particle diffusion and migration in flowing complex fluids is described. The device is particularly suited to obtaining diffusivities in such fluids, which require a desired flow state to be maintained during measurement. A method based on the Loschmidt diffusion theory and short times of exposure is presented to allow calculation of diffusivities from concentration differences in the flow streams leaving the cell.
本文描述了一种用于测量溶质扩散以及颗粒在流动复杂流体中的扩散和迁移的微流控装置。该装置特别适合于获取此类流体中的扩散系数，而这需要在测量过程中维持所需的流动状态。提出了一种基于洛施密特扩散理论和短暴露时间的方法，以便根据离开细胞的流动流中的浓度差异来计算扩散系数。
