2020 Fiscal Year Final Research Report
Study on real-time monitoring of droplets by thermal sensor in microchannel
| Project/Area Number |
19K23497
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
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| Research Institution | Meiji University |
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Principal Investigator |
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| Project Period (FY) |
2019-08-30 – 2021-03-31
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| Keywords | MEMS熱センサ / 微小液滴 / ナノ粒子 / マイクロ熱流体 / 熱物性 / インライン分析 |
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| Outline of Final Research Achievements |
Droplet-based microfluidics is a promising strategy for the synthesis of high-quality nanomaterials because of the uniform concentration and temperature distribution can be formed inside the small droplets. In this study, a MEMS thermal sensor to monitor the small droplets in the microchannel for the reaction control is investigated. The prototype of the MEMS thermal sensor was fabricated and tested. In addition, protocol for the droplet formation in the microchannel have been validated. Furthermore, the experimental investigation of the target reaction to be controlled and the development of the in-line method for the analysis of synthesized nanoparticles have been performed. The fundamental researches for the development of component technology have been conducted to realize the proposed integrated microfluidic system.
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| Free Research Field |
熱工学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，提案する熱センサ試作し，センサ表面に物性の異なる液滴を滴下した際に，短時間（1秒以内）に識別可能であることを確認した．また，マイクロ流路内でpL～nL液滴を形成する装置を構築し，安定した液滴形成を確認した．その他，還元法による金ナノ粒子合成反応を合成制御対象として実験的に検討し，生成粒子を逐次評価するインライン分光器も作製した．本課題を通して，液滴を用いた合成に向けて各要素の基礎的な技術開発に取り組んだ．今後の研究継続により，これら要素技術を発展・統合し，高品位合成・分析を行うマイクロ熱流体デバイスが実現できると考えられる．
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