Diffusion, Interactions, and Structural Properties of Colloidal Suspensions in One-Dimensional Channels

提案号：cts -0217746机构：U chicago opi名称：B. lin标题：一维通道中胶体悬浮液的扩散、相互作用和结构性质摘要该项目是关于悬浮在狭窄通道内液体中的胶体颗粒的动力学行为。这种排列方式为研究颗粒在一维孔隙中的输运特性提供了实验条件。结果表明，附近壁面的存在会影响平移粒子的阻力，粒子之间的相互作用会在孔隙内产生非菲克式输运。实验的目的是研究一维扩散的特性，在这种复杂的几何结构和实际应用中很难进行理论分析。其目标是获得现有理论无法预测的受限几何中输运的新信息。拟议的项目将阐明颗粒的大小（相对于通道尺寸），通过一维扩散模型来描述运输。

Proposal Number: CTS-0217746Institution: U ChicagoPI Name: B. LinTitle: Diffusion, interactions and structural properties of colloidal suspensions in one-dimensional channelsABSTRACTThe proposed project is on the dynamical behavior of colloidal particles suspended in liquid confined within a narrow channel. This arrangement provides an experimental setup to investigate the particle transport characteristics in one-dimensional pores. It is shown that the presence of nearby walls affects the drag on a translating particle where interactions among particles produce non-Fickian transport within a pore. The experiments are designed to investigate the characteristics of one-dimensional diffusion, difficult to analyze theoretically in this complicated geometry and in realistic applications. The goal is to obtain new information about transport in confined geometry not anticipated from existing theories. The proposed project will shed light on the size of the particles (relative to the channel dimensions) for transport to be described by a one-dimensional diffusion model.