The separation of blood components (WBCs, RBCs, and platelets) is important for medical applications. Recently, standing surface acoustic wave (SSAW) microfluidic devices are used for the separation of particles. In this paper, the design analysis of SSAW microfluidics is presented. Also, the analysis of SSAW force with Rayleigh angle effect and its attenuation in liquid-loaded substrate, viscous drag force, hydrodynamic force, and diffusion force are explained and analyzed. The analyses are provided for selecting the piezoelectric material, width of the main microchannel, working area of SAW, wavelength, minimum input power required for the separation process, and widths of outlet collecting microchannels. The design analysis of SSAW microfluidics is provided for determining the minimum input power required for the separation process with appropriated the displacement contrast of the particles.The analyses are applied for simulation the separation of blood components. The piezoelectric material, width of the main microchannel, working area of SAW, wavelength, and minimum input power required for the separation process are selected as LiNbO3, 120 μm, 1.08 mm2, 300 μm, 371 mW. The results are compared to other published results. The results of these simulations achieve minimum power consumption, less complicated setup, and high collecting efficiency. All simulation programs are built by MATLAB.
展开▼
机译:血液成分(WBC,RBC和血小板)的分离对于医疗应用很重要。近来,驻声表面波(SSAW)微流体装置被用于分离颗粒。本文介绍了SSAW微流体的设计分析。此外,还解释了分析了具有瑞利角效应的SSAW力及其在载液基底中的衰减,粘性阻力,流体动力和扩散力。提供了用于选择压电材料,主微通道的宽度,SAW的工作区域,波长,分离过程所需的最小输入功率以及出口收集微通道的宽度的分析。提供了SSAW微流体的设计分析,以确定分离过程所需的最小输入功率,并适当调整了颗粒的位移对比,并将这些分析用于模拟血液成分的分离。选择分离过程所需的压电材料,主微通道的宽度,声表面波的工作面积,波长和最小输入功率为LiNbO3、120μm,1.08 mm 2 sup>,300μm,371 mW 。将结果与其他已发布的结果进行比较。这些仿真的结果实现了最低的功耗,更简单的设置以及更高的收集效率。所有仿真程序均由MATLAB构建。
展开▼