Computational and experimental investigations of a microfluidic mixer for efficient iodine extraction using carbon tetrachloride enhanced with gas bubbles  

作　　者：Siddique Muhammad Kashif 孙林 李松晶 Siddique Muhammad Kashif;Sun Lin;Li Songjing(Department of Fluid Control and Automation,School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]Department of Fluid Control and Automation,School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Chinese Physics B》2023年第11期518-526,共9页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 51175101)。

摘　　要：Numerous studies have been conducted on microfluidic mixers in various microanalysis systems, which elucidated the manipulation and control of small fluid volumes within microfluidic chips. These studies have demonstrated the ability to control fluids and samples precisely at the microscale. Microfluidic mixers provide high sensitivity for biochemical analysis due to their small volumes and high surface-to-volume ratios. A promising approach in drug delivery is the rapid microfluidic mixer-based extraction of elemental iodine at the micro level, demonstrating the versatility and the potential to enhance diagnostic imaging and accuracy in targeted drug delivery. Micro-mixing inside microfluidic chips plays a key role in biochemical analysis. The experimental study describes a microfluidic mixer for extraction of elemental iodine using carbon tetrachloride with a gas bubble mixing process. Gas bubbles are generated inside the microcavity to create turbulence and micro-vortices resulting in uniform mixing of samples. The bubble mixing of biochemical samples is analyzed at various pressure levels to validate the simulated results in computational fluid dynamics(CFD). The experimental setup includes a high-resolution camera and an air pump to observe the mixing process and volume at different pressure levels with time. The bubble formation is controlled by adjusting the inert gas flow inside the microfluidic chip. Microfluidic chip-based gas bubble mixing effects have been elaborated at various supplied pressures.

关 键 词：microfluidic mixer iodine extraction CFD simulation micro-mixing properties 

分 类 号：TQ051.71[化学工程] TN492[电子电信—微电子学与固体电子学]