RT Journal Article
T1 Conductive nanostructured materials based on poly-(3,4-ethylenedioxythiophene) (PEDOT) and starch/κ-carrageenan for biomedical applications
A1 García González, Carlos A.
A1 Zamora-Sequeira, Roy
A1 Ardao Palacios, Inés
A1 Starbird-Perez, Ricardo
K1 Aerogel
K1 K-carrageenan
K1 Nanostructuration
K1 Supercritical CO2 drying
K1 PEDOT
AB Smart electroactive biomaterials are sought to allow the direct delivery of electrical, electrochemical and electromechanical signals to biological tissues. Specifically, poly-(3,4- ethylenedioxythiophene) (PEDOT) is a polymer of special interest attending to its biocompatibility, tuneable electrical conductivity and processing versatility. In this work, nanostructured PEDOT was synthesized using starch/κ-carrageenan aerogels as templates. κ-carrageenan biopolymer acted as doping agent of the conductive polymer to enhance the biocompatibility and the electrical response. The physicochemical, morphological, mechanical and electrical properties of the nanostructured PEDOT and templates were characterized. The incorporation of κ-carrageenan to the nanostructured materials resulted in an increase in the compressive strength of ca. 40% and a decrease in the electrical impedance of one order-of-magnitude. The synergistic combination of the inherent electrical properties of the PEDOT, the advantageous features of κ-carrageenan as doping agent and the porous morphology of the aerogel template resulted in electroactive PEDOT nanostructures with relevant properties for biomedical applications.
PB Elsevier
SN 0144-8617
YR 2018
FD 2018
LK http://hdl.handle.net/10347/32439
UL http://hdl.handle.net/10347/32439
LA eng
NO oy Zamora-Sequeira, Inés Ardao, Ricardo Starbird, Carlos A. García-González, Conductive nanostructured materials based on poly-(3,4-ethylenedioxythiophene) (PEDOT) and starch/κ-carrageenan for biomedical applications, Carbohydrate Polymers, Volume 189, 2018, pp 304-312, ISSN 0144-8617, https://doi.org/10.1016/j.carbpol.2018.02.040.
NO Consejo de Galicia [ED431F 2016/010] y [ED431C 2016/008]; Agencia Estatal de Investigación (AEI);Instituto Tecnológico de Costa Rica (ITCR); NacionalInstituto de Aprendizaje (INA) y las Oficinas Tecnológicas de Costa Rica (MICITT yCONICIT). CAG-G. agradece al MINECO por Beca Ramón y Cajal [RYC-2014-15239]. Los autores desean agradecer al Dr. Teodolito Guillén (Centro deInvestigación y Extensión en Materiales, ITCR) por su asistencia durante el taller mecánicopruebas.
DS Minerva
RD 28 abr 2026