Self-Propelled Motion of Monodisperse Underwater Oil Droplets Formed by a Microfluidic Device

Naoko Ueno; Taisuke Banno; Arisa Asami; Yuki Kazayama; Yuya Morimoto; Toshihisa Osaki; Shoji Takeuchi; Hiroyuki Kitahata; Taro Toyota

doi:10.1021/acs.langmuir.7b00092

Self-Propelled Motion of Monodisperse Underwater Oil Droplets Formed by a Microfluidic Device

Naoko Ueno, Taisuke Banno, Arisa Asami, Yuki Kazayama, Yuya Morimoto, Toshihisa Osaki, Shoji Takeuchi, Hiroyuki Kitahata, Taro Toyota

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

We evaluated the speed profile of self-propelled underwater oil droplets comprising a hydrophobic aldehyde derivative in terms of their diameter and the surrounding surfactant concentration using a microfluidic device. We found that the speed of the oil droplets is dependent on not only the surfactant concentration but also the droplet size in a certain range of the surfactant concentration. This tendency is interpreted in terms of combination of the oil and surfactant affording spontaneous emulsification in addition to the Marangoni effect.

Original language	English
Pages (from-to)	5393-5397
Number of pages	5
Journal	Langmuir
Volume	33
Issue number	22
DOIs	https://doi.org/10.1021/acs.langmuir.7b00092
Publication status	Published - 2017 Jun 6

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/acs.langmuir.7b00092

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abstract = "We evaluated the speed profile of self-propelled underwater oil droplets comprising a hydrophobic aldehyde derivative in terms of their diameter and the surrounding surfactant concentration using a microfluidic device. We found that the speed of the oil droplets is dependent on not only the surfactant concentration but also the droplet size in a certain range of the surfactant concentration. This tendency is interpreted in terms of combination of the oil and surfactant affording spontaneous emulsification in addition to the Marangoni effect.",

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AU - Ueno, Naoko

AU - Banno, Taisuke

AU - Asami, Arisa

AU - Kazayama, Yuki

AU - Morimoto, Yuya

AU - Osaki, Toshihisa

AU - Takeuchi, Shoji

AU - Kitahata, Hiroyuki

AU - Toyota, Taro

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Self-Propelled Motion of Monodisperse Underwater Oil Droplets Formed by a Microfluidic Device

Abstract

ASJC Scopus subject areas

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