Dynamics of Nonmagnetic and Magnetic Emulsions in Microchannels of Various Materials
Dariya Kalyuzhnaya,
Evgeniy Sokolov,
Anastasia Vasilyeva,
Irina Sutarina,
Petr Ryapolov
Affiliations
Dariya Kalyuzhnaya
Department of Nanotechnology, Microelectronics, General and Applied Physics, Faculty of Natural Sciences, Southwest State University, 50 Let Oktyabrya Street, 94, Kursk 305040, Russia
Evgeniy Sokolov
Department of Nanotechnology, Microelectronics, General and Applied Physics, Faculty of Natural Sciences, Southwest State University, 50 Let Oktyabrya Street, 94, Kursk 305040, Russia
Anastasia Vasilyeva
Department of Nanotechnology, Microelectronics, General and Applied Physics, Faculty of Natural Sciences, Southwest State University, 50 Let Oktyabrya Street, 94, Kursk 305040, Russia
Irina Sutarina
Department of Nanotechnology, Microelectronics, General and Applied Physics, Faculty of Natural Sciences, Southwest State University, 50 Let Oktyabrya Street, 94, Kursk 305040, Russia
Petr Ryapolov
Department of Nanotechnology, Microelectronics, General and Applied Physics, Faculty of Natural Sciences, Southwest State University, 50 Let Oktyabrya Street, 94, Kursk 305040, Russia
The formation of droplets in microchannels (droplet microfluidics) has a large number of applications, such as in micro-dosing and gas meters. This paper considers the dynamics of direct and inverse emulsions based on water, polydimethylsiloxane, and synthetic and mineral oil in microfluidic chips based on two technologies: glass–parafilm–glass sandwich structures and removable scaffold in a silicone compound. It is shown that wettability, roughness and chip wall material; channel thickness; magnetic fluid flow rate; and magnetic field strength affect the size of emulsion droplets formed in a microfluidic chip. The addition of another mechanism for regulating the hydrodynamics of emulsions using a magnetic field opens up new possibilities for the development of promising devices.
