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Article

Electrochemomechanical Behavior of Polypyrrole-Coated Nanofiber Scaffolds in Cell Culture Medium

1
Intelligent Materials and Systems Lab, Faculty of Science and Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
2
Institute of Physics, Faculty of Science and Technology, University of Tartu, W. Ostwaldi Str 1, 50411 Tartu, Estonia
3
Conducting polymers in composites and applications Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(6), 1043; https://doi.org/10.3390/polym11061043
Received: 14 May 2019 / Revised: 7 June 2019 / Accepted: 12 June 2019 / Published: 13 June 2019
(This article belongs to the Special Issue Polymeric Materials for Tissue Engineering)
Glucose-gelatin nanofiber scaffolds were made conductive and electroactive by chemical (conductive fiber scaffolds, CFS) and additionally electrochemical polypyrrole deposition (doped with triflouromethanesulfonate CF3SO3, CFS-PPyTF). Both materials were investigated in their linear actuation properties in cell culture medium (CCM), as they could be potential electro-mechanically activated cell growth substrates. Independent of the deposition conditions, both materials showed relatively stable cation-driven actuation in CCM, based on the flux of mainly Na+ ions from CCM. The surprising result was attributed to re-doping by sulfate anions in CCM, as also indicated by energy-dispersive X-ray (EDX) spectroscopy results. Overall, the electrochemically coated material outperformed the one with just chemical coating in conductivity, charge density and actuation response. View Full-Text
Keywords: CFS; CFS-PPyTF; linear actuation; CCM; cation driven CFS; CFS-PPyTF; linear actuation; CCM; cation driven
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MDPI and ACS Style

Harjo, M.; Torop, J.; Järvekülg, M.; Tamm, T.; Kiefer, R. Electrochemomechanical Behavior of Polypyrrole-Coated Nanofiber Scaffolds in Cell Culture Medium. Polymers 2019, 11, 1043. https://doi.org/10.3390/polym11061043

AMA Style

Harjo M, Torop J, Järvekülg M, Tamm T, Kiefer R. Electrochemomechanical Behavior of Polypyrrole-Coated Nanofiber Scaffolds in Cell Culture Medium. Polymers. 2019; 11(6):1043. https://doi.org/10.3390/polym11061043

Chicago/Turabian Style

Harjo, Madis, Janno Torop, Martin Järvekülg, Tarmo Tamm, and Rudolf Kiefer. 2019. "Electrochemomechanical Behavior of Polypyrrole-Coated Nanofiber Scaffolds in Cell Culture Medium" Polymers 11, no. 6: 1043. https://doi.org/10.3390/polym11061043

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