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Authors: Yuta Morizane and Toshiyuki Horiuchi

Affiliation: Tokyo Denki University, Japan

ISBN: 978-989-758-170-0

ISSN: 2184-4305

Keyword(s): Micro-Fluidic Device, Diffusion Mixing, Projection Exposure, Micro-Mixer, Phenolphthalein.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Instrumentation ; Biomedical Instruments and Devices ; Hardware ; Imaging and Visualization Devices ; MEMS ; Sensor Networks

Abstract: Mixing of laminar two-liquid flows in micro-mixers was visualized and analyzed by mixing alkaline solution and phenolphthalein. Micro-mixers with flow paths fabricated by optical projection lithography were used. The two liquids were injected using a syringe pump from Y-shape inlets, and states of mixing were observed using an optical microscope with a high-resolution digital camera. By using above mentioned two liquids, transparent liquids were colored in red when they were mixed. For this season, the mixing was clearly visualized. Because Reynolds number of the flow was so small as 0.27-17.7, the flow became the laminar one. Accordingly, two liquids were not mixed near the junction where they were joined together. However, they were gradually mixed by diffusion during they flowed in the mixer paths. It was clarified that the mixing ratio varied depending on the flow-path shape, flow rate, and flow-path width.

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Paper citation in several formats:
Morizane, Y. and Horiuchi, T. (2016). In Situ Observation of Diffusion Mixing in a Micro-fluidic Mixer.In Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1 BIODEVICES: BIODEVICES, (BIOSTEC 2016) ISBN 978-989-758-170-0, ISSN 2184-4305, pages 209-215. DOI: 10.5220/0005757902090215

@conference{biodevices16,
author={Yuta Morizane. and Horiuchi, T.},
title={In Situ Observation of Diffusion Mixing in a Micro-fluidic Mixer},
booktitle={Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1 BIODEVICES: BIODEVICES, (BIOSTEC 2016)},
year={2016},
pages={209-215},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005757902090215},
isbn={978-989-758-170-0},
}

TY - CONF

JO - Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1 BIODEVICES: BIODEVICES, (BIOSTEC 2016)
TI - In Situ Observation of Diffusion Mixing in a Micro-fluidic Mixer
SN - 978-989-758-170-0
AU - Morizane, Y.
AU - Horiuchi, T.
PY - 2016
SP - 209
EP - 215
DO - 10.5220/0005757902090215

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