Open AccessИсследование электрофизических свойств композиционных волокон на основе хитозана и полипиррола для тканевой инженерии
Author(s) -
P. A. Aleshin,
А. Н. Алешин,
Е.Ю. Розова,
Е. Н. Дресвянина,
Н. Н. Сапрыкина,
В Е Юдин
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.11.51545.143-21
Subject(s) - materials science , drop (telecommunication) , chitosan , polymer , scanning electron microscope , electrical resistivity and conductivity , composite material , conductivity , composite number , immersion (mathematics) , polypyrrole , liquid medium , chemical engineering , chemistry , chromatography , polymerization , telecommunications , electrical engineering , mathematics , computer science , pure mathematics , engineering
Composite fibers based on chitosan, coated with a conducting polymer, polypyrrole (PPyr), have been obtained. Their morphology was studied by scanning electron microscopy. The electrical conductivity of the fibers in a dry state and in a liquid culture medium simulating tissue fluid has been estimated. The values of resistivity, ro, and conductivity, sigma , of the investigated fibers are determined depending on the number of PPyr layers, the degree of drawing (orientation) of the fibers in dry and in liquid media. It was found that with an increase in the amount of drawing from 0 to 100%, ro of fibers decreases both in a dry state and in a liquid culture medium. In this case, the maximum drop ro of fibers upon immersion in a liquid culture medium was observed for undrawn fibers with two layers of PPyr. It was shown that after an initial drop in ro of oriented chitosan fibers with 1 and 2 layers of PPyr ro changes weakly in a liquid culture medium for 2 hours. The investigated oriented polymer fibers of chitosan coated with 1 and 2 layers of PPyr are promising for use in the field of tissue engineering and regenerative medicine.