Electroactive polyurethane/siloxane derived from castor oil as a versatile cardiac patch, part II: HL-1 cytocompatibility and electrical characterizations

Nafiseh Baheiraei, Reza Gharibi, Hamid Yeganeh, Michele Miragoli, Nicolò Salvarani, Elisa Di Pasquale, Gianluigi Condorelli

Research output: Contribution to journalArticle

Abstract

In first part of this experiment, biocompatibility of the newly developed electroactive polyurethane/siloxane films containing aniline tetramer moieties was demonstrated with proliferation and differentiation of C2C12 myoblasts. Here we further assessed the cytocompatibility of the prepared samples with HL1-cell line, the electrophysiological properties and the patch clamp recording of the seeded cells over the selected electroactive sample. Presence of electroactive aniline tetramer in the structure of polyurethane/siloxane led to the increased expression of cardiac-specific genes of HL-1 cells involved in muscle contraction and electrical coupling. Our results showed that expression of Cx43, TrpT-2, and SERCA genes was significantly increased in conductive sample compared to tissue culture plate and the corresponding non-conductive analogous. The prepared materials were not only biocompatible in terms of cellular toxicity, but did not alter the intrinsic electrical characteristics of HL-1 cells. Embedding the electroactive moiety into the prepared films improved the properties of these polymeric cardiac construct through the enhanced transmission of electrical signals between the cells. Based on morphological observation, calcium imaging and electrophysiological recordings, we demonstrated the potential applicability of these materials for cardiac tissue engineering.

Original languageEnglish
Pages (from-to)1398-1407
JournalJournal of Biomedical Materials Research - Part A
Volume104
Issue number6
DOIs
Publication statusAccepted/In press - 2016

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Keywords

  • Cardiac patch
  • Electroactivity
  • Electrophysiology
  • Myocardial infarction
  • Polyurethane
  • Tissue engineering

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Ceramics and Composites
  • Metals and Alloys

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