Open AccessВлияние низкочастотного магнитного поля на полиэлектролитные микрокапсулы с наночастицами магнетита
Author(s) -
И.А. Бурмистров,
Д.Б. Трушина,
Т.Н. Бородина,
М.М. Веселов,
Н.Л. Клячко,
В.Б. Зайцев,
Y. GonzálezAlfaro,
Т.В. Букреева
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.09.49672.405-19
Subject(s) - polystyrene sulfonate , polyelectrolyte , materials science , permeability (electromagnetism) , penetration (warfare) , dextran , magnetic nanoparticles , magnetic field , polystyrene , chemical engineering , nanoparticle , composite material , chemistry , nanotechnology , chromatography , membrane , polymer , biochemistry , physics , pedot:pss , operations research , quantum mechanics , engineering
Polyelectrolyte microcapsules have been prepared by sequential adsorption of oppositely charged sodium polystyrene sulfonate and polyallylamine hydrochloride molecules on the surface of calcium carbonate particles. The capsule shells are functionalized with Fe3O4 magnetic nanoparticles to provide control over the localization of microcapsules and the permeability of their shells. The control of microcapsule permeability using a low-frequency non-heating magnetic field is based on the magneto-mechanical actuation, which, due to its high penetration ability, locality and safety, is preferable for application in vivo to magnetic hyperthermia. Here we report on the results of analysis of the effect of a low-frequency pulsed sinusoidal magnetic field with a frequency of 50 Hz on the permeability of the microcapsule shell for fluorescently labeled dextran molecules. It was found that the permeability of the shell increases with a decrease in the duration of the pause between magnetic field pulses, causing an increase in the amount of dextran in the shell.