Size-dependent electrophoretic motion of polystyrene particles at polyethylene glycol-dextran interfaces.
Electrophoresis
; 43(21-22): 2112-2119, 2022 11.
Article
em En
| MEDLINE
| ID: mdl-35753080
ABSTRACT
Currently, there is very limited information on the electrophoretic behavior of particles at a liquid-liquid interface formed by two conducting liquid solutions. Here, electrophoretic velocities of polystyrene particles at a polyethylene glycol (PEG)-dextran (DEX) interface were investigated in this paper. Experimental results show that the particle at the interface moves in the opposite direction to the applied electric field, with a velocity much lower than that in the PEG-rich phase and a litter larger than that in the DEX-rich phase. Similarly to the movement in Newtonian fluids, the velocity increases linearly with the increase in the applied electric field. Different to particle electrophoresis in Newtonian fluids, the velocities of the particles at the PEG-DEX interface increase linearly with the decrease in particle's diameters, implying a possible size-based particle differentiation at an interface.
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Base de dados:
MEDLINE
Assunto principal:
Polietilenoglicóis
/
Poliestirenos
Idioma:
En
Revista:
Electrophoresis
Ano de publicação:
2022
Tipo de documento:
Article