SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
Lab Chip. 2013 Jun 21;13(12):2359-63. doi: 10.1039/c3lc00028a. Epub 2013 May 3.
We present a technique to measure the velocity and flow profiles of a nanofluid in a microfluidic channel. Importantly, we extract the flow velocity from a series of standard brightfield images without employing particle tracking or laser-enhanced methods. Our analysis retrieves the flow information from the image structure function of sub-diffraction limited nanoparticles in suspension. We are able to spatially resolve the flow velocity and map out the parabolic flow profile across the width of a microfluidic channel.
我们提出了一种测量微流道中纳米流体速度和流动剖面的技术。重要的是，我们从一系列标准明场图像中提取流速，而不采用粒子跟踪或激光增强方法。我们的分析从悬浮亚衍射限制纳米粒子的图像结构函数中检索流信息。我们能够空间分辨流速并绘制微流道宽度上的抛物线流动剖面。
