Authors : Kingsley Obinna Iwuji; Tukur Sani Gadanya

Volume/Issue : Volume 10 - 2025, Issue 1 - January

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Google Scholar : https://tinyurl.com/knhykds9

Scribd : https://tinyurl.com/yxyne48s

DOI : https://doi.org/10.5281/zenodo.14800367

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Abstract : This study investigates passive fluid mixing in microfluidic devices through experimental evaluation of three geometries: straight channel, zigzag channel, and flow-splitting channel. Mixing was characterized using a custom-built syringe pump, 3D-printed devices, and ImageJ analysis. Results demonstrated that flow-splitting geometries achieved efficient mixing at lower flow rates compared to zigzag geometries. This work provides valuable insights for designing cost- effective micromixers for lab-on-a-chip applications, particularly in biomedical and chemical diagnostics.

Keywords : Microfluidics, Passive Mixing, 3D Printing, Lab-on-a-Chip, Zigzag Channels, Flow-Splitting Channels.

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