论文标题
电荷稳定的胶体分散体的微流体渗透压缩：状态和集体扩散系数的方程
Microfluidic osmotic compression of a charge-stabilized colloidal dispersion: Equation of state and collective diffusion coefficient
论文作者
论文摘要
我们使用模型耦合的质量传输和液体理论计算进行电荷稳定的胶体分散剂，扩散显着限制了其状态方程（EOS）的测量时间，使用渗透压压缩技术，渗透压与组成。在此结果之后，我们提出了一个微流体芯片，使一个芯片可以在几个小时内在纳米尺度上测量带电分散的整个EO。我们还表明，在这个微流体实验中，时间分辨为平衡的时间分析，导致对与盐储层中Donnan平衡中分散体的集体扩散系数的直接估计。
We show, using a model coupling mass transport and liquid theory calculations for a charge-stabilized colloidal dispersion, that diffusion significantly limits measurement times of its Equation Of State (EOS), osmotic pressure vs composition, using the osmotic compression technique. Following this result, we present a microfluidic chip allowing one to measure the entire EOS of a charged dispersion at the nanoliter scale in a few hours. We also show that time-resolved analyses of relaxation to equilibrium in this microfluidic experiment lead to direct estimates of the collective diffusion coefficient of the dispersion in Donnan equilibrium with a salt reservoir.
