Electroconductive PEDOT:PSS-based hydrogel prepared by freezing-thawing method

Pavel M Gotovtsev; Gulfiya U Badranova; Yan V Zubavichus; Nikolay K Chumakov; Christina G Antipova; Roman A Kamyshinsky; Mikhail Yu Presniakov; Kazbek V Tokaev; Timofei E Grigoriev

doi:10.1016/j.heliyon.2019.e02498

Electroconductive PEDOT:PSS-based hydrogel prepared by freezing-thawing method

Heliyon. 2019 Sep 20;5(9):e02498. doi: 10.1016/j.heliyon.2019.e02498. eCollection 2019 Sep.

Authors

Affiliations

¹ National Research Centre "Kurchatov Institute", Moscow, 123182, Russia.
² Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia.
³ Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia.
⁴ Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics", Russian Academy of Sciences, Moscow, Russia.
⁵ National Medical Center of Physiopulmonology and Infectious Diseases, Ministry of Health of the Russian Federation, 127473, Moscow, Russia.

Abstract

Biopolymer-based composition with adding of conductive polymer poly-(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT PSS) was made by mixing of iota-carrageenan (CRG), polyvinyl alcohol (PVA) and PEDOT PSS followed by freezing/thawing cycles. The method is environmentally friendly and based on the formation of polymer matrix upon of mixing CRG, PVA and PEDOT PSS and formation of porous physical gel due to freezing/thawing cycles. It is necessary to mention that all components are well-known as biocompatible materials. The resulting material is stable in water and also has swelling capability both in distilled water and physiological solutions. Structure of material was characterized by means of X-ray diffraction, optical and electron microscopy. Electrophysical investigations also were performed. The conductivity of the gel immersed in distilled water is comparable with the dry gel value and close to 0.01 [S/cm].

Keywords: Biomedical devices; Biomedical engineering; Biomedical materials; Biopolymers; Conductive polymers; Hydrogels; Iota-carrageenan; Materials synthesis; Nanotechnology; Nanotechnology fabrication; PEDOT PSS; Polymers; Polyvinyl alcohol.