Article

Biomedical Microdevices

, Volume 13, Issue 3, pp 559-564

The effect of interfacial tension on droplet formation in flow-focusing microfluidic device

  • Lu PengAffiliated withKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Department of Physics, School of Physics and Technology, Wuhan University
  • , Min YangAffiliated withKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Department of Physics, School of Physics and Technology, Wuhan University
  • , Shi-shang GuoAffiliated withKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Department of Physics, School of Physics and Technology, Wuhan University
  • , Wei LiuAffiliated withKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Department of Physics, School of Physics and Technology, Wuhan University Email author 
  • , Xing-zhong ZhaoAffiliated withKey Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Department of Physics, School of Physics and Technology, Wuhan University Email author 

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Abstract

Interfacial tension plays an important role in microfluidic emulsification, which is the process of preparing emulsions. A promising method which controls droplet behavior according to the function of the interfacial tension in the process of microfluidic emulsification is reported. The droplet size and generation frequency changed regularly to obtain appropriate concentrations of surfactant. This method could be of great help for setting up the size-controllable droplet generation systems, and ameliorating the emulsification technology. The interfacial tension effect was first analyzed by computational simulation before the real experiment, which significantly improved the efficiency of the whole research process.

Keywords

Microfluidics Simulation Interfacial tension Droplet Flow-focusing