Influence of nanoparticle-embedded polymeric surfaces on cellular adhesion, proliferation, and differentiation

Letizia Ventrelli*, Toshinori Fujie, Serena Del Turco, Giuseppina Basta, Barbara Mazzolai, Virgilio Mattoli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The development of functional substrates to direct cellular organization is important for biomedical applications such as regenerative medicine and biorobotics. In this study, we prepared freestanding polymeric ultrathin films (nanofilms) consisting of poly(lactic acid) (PLA) and magnetic nanoparticles (MNPs), and evaluated the effects of their surface properties on the organization of cardiac-like rat myoblasts (H9c2). We changed surface properties of the PLA nanofilms (i.e., roughness and wettability) as a function of MNPs concentration. We found that the incorporation of MNPs into the nanofilms enhanced both proliferation and adhesion of H9c2 cells. Through the morphological assessment of the differentiated H9c2 cells, we also found that the presence of MNPs significantly increased the fusion index and the surface area of myotubes. In conclusion, the embedding of MNPs is a simple method to tailor the physicochemical properties of the polymeric nanofilms, yet it is an effective approach to enhance the cellular morphogenesis in the field of cardiac tissue engineering for regenerative medicine and biorobotics applications.

Original languageEnglish
Pages (from-to)2652-2661
Number of pages10
JournalJournal of Biomedical Materials Research - Part A
Issue number8
Publication statusPublished - 2014
Externally publishedYes


  • cardiac tissue engineering
  • cellular scaffolds
  • magnetic nanoparticles
  • surface roughness
  • ultrathin films (nanofilms)

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Ceramics and Composites
  • Metals and Alloys
  • Medicine(all)


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