Electrical enhancement technique for mixing chemicals in droplets passing through a droplet-based microreactor

Research Project

Project/Area Number	21560202
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Thermal engineering
Research Institution	Tokyo Gakugei University
Principal Investigator	MOCHIZUKI Takaaki 東京学芸大学, 教育学部, 准教授 (70280360)
Project Period (FY)	2009 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords	マイクロ・ナノデバイス / マイクロリアクター / 電気流体力学 / 交番電場液滴内混合挙動観察法 / 混合手法 / 周期的変形運動 / 交番電場 / 液滴内混合手法 / 電場 / 液滴内混合挙動観察法
Research Abstract	When a water droplet, which has no net electric charge and passes through an immiscible dielectric liquid, is subjected to an alternating electric field, the droplet shows periodical deformation due to the electrostatic force whose strength varies with time. In this study, a novel technique, using the periodical deformation of an aqueous micro-droplet, to mix some species dissolved in the droplet has been experimentally studied. This study also presents an optical arrangement to observe mixing phenomena inside a droplet.