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Study of Electrophoresis Process in Magnetic Colloids by Magnetic Methods
Yurii I Dikansky1, Andrey S Drozdov2,3, Dmitry S Dorozhko1
1Department of Experimental Physics, Physical Technical Faculty, North-Caucasus Federal University, Stavropol, Russia.
Electrophoresis
|October 7, 2025
Summary
This study investigates water-based magnetic fluids, revealing how magnetic fields influence their electrophoretic behavior. Magnetic measurements enable calculation of electrophoretic velocity and particle properties, with field control offering precise regulation.
Area of Science:
- Colloid and Surface Science
- Nanotechnology
- Magnetohydrodynamics
Background:
- Electrokinetic phenomena are crucial for colloidal nanoparticles, with extensive research on various nanomaterials.
- A significant gap exists in studying magnetic systems, despite their potential benefits from magnetophoretic and electrophoretic techniques.
Purpose of the Study:
- To investigate the electrophoretic behavior of water-based magnetic fluids.
- To determine the effect of external magnetic fields on these properties.
- To develop methods for analyzing magnetic colloidal systems using electrophoresis.
Main Methods:
- Utilized magnetic measurements to analyze colloidal particles with charge and magnetic moment.
- Measured magnetic susceptibility and magnetization of electrode precipitates.
- Employed micrometric measurements to estimate precipitate thickness.
Main Results:
- Developed a formula to calculate electrophoretic velocity using magnetic measurements.
- Estimated zeta potential and charge of colloidal particles.
- Demonstrated that electrophoresis in magnetic fluids can be regulated by inhomogeneous magnetic fields.
Conclusions:
- Magnetic measurements provide a novel approach to studying magnetic colloidal systems.
- Electrophoretic techniques can be effectively controlled and optimized using magnetic fields.
- This research bridges the gap in understanding electrokinetic phenomena in magnetic nanomaterials.
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