Improved osteoblast cell affinity on plasma-modified 3D extruded PCL scaffolds (Articolo in rivista)

Type
Label
  • Improved osteoblast cell affinity on plasma-modified 3D extruded PCL scaffolds (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Alternative label
  • M. Domingos a, F. Intranuovo b, A. Gloria c, R. Gristina d, L. Ambrosio c, P.J. Bártolo a, P. Favia b,d (2013)
    Improved osteoblast cell affinity on plasma-modified 3D extruded PCL scaffolds
    in Acta biomaterialia
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Domingos a, F. Intranuovo b, A. Gloria c, R. Gristina d, L. Ambrosio c, P.J. Bártolo a, P. Favia b,d (literal)
Pagina inizio
  • 5997 (literal)
Pagina fine
  • 6005 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Portugal b Department of Chemistry, University of Bari, Italy c Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy d Institute of Inorganic Methodologies and Plasmas, National Research Council, Bari, Italy (literal)
Titolo
  • Improved osteoblast cell affinity on plasma-modified 3D extruded PCL scaffolds (literal)
Abstract
  • Cellular adhesion and proliferation inside three-dimensional synthetic scaffolds represent a major chal- lenge in tissue engineering. Besides the surface chemistry of the polymers, it is well recognized that scaf- fold internal architecture, namely pore size/shape and interconnectivity, has a strong effect on the biological response of cells. This study reports for the first time how polycaprolactone (PCL) scaffolds with controlled micro-architecture can be effectively produced via bioextrusion and used to enhance the penetration of plasma deposited species. Low-pressure nitrogen-based coatings were employed to augment cell adhesion and proliferation without altering the mechanical properties of the structures. X-ray photoelectron spectroscopy carried out on different sections of the scaffolds indicates a uniform distribution of nitrogen-containing groups throughout the entire porous structure. In vitro biological assays confirm that plasma deposition sensitively promotes the activity of Saos-2 osteoblast cells, leading to a homogeneous colonization of the PCL scaffolds. (literal)
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