Surface modification of a synthetic polyurethane by plasma glow discharge: Preparation and characterization of bioactive monolayers (Articolo in rivista)

Type
Label
  • Surface modification of a synthetic polyurethane by plasma glow discharge: Preparation and characterization of bioactive monolayers (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.reactfunctpolym.2007.12.002 (literal)
Alternative label
  • Sartori S.; Rechichi A.; Vozzi G.; D'Acunto M.; Heine E.; Giusti P.; Ciardelli G. (2008)
    Surface modification of a synthetic polyurethane by plasma glow discharge: Preparation and characterization of bioactive monolayers
    in Reactive & functional polymers (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Sartori S.; Rechichi A.; Vozzi G.; D'Acunto M.; Heine E.; Giusti P.; Ciardelli G. (literal)
Pagina inizio
  • 809 (literal)
Pagina fine
  • 821 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 68 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 14 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Pisa, Department of Chemistry and Industrial Chemistry, via Risorgimento, 56126 Pisa, Italy University of Pisa, Department of Chemical Engineering, via Diotisalvi 2, 56126 Pisa, Italy Politecnico di Torino, Department of Mechanics, Corso Duca degli Abruzzi 24, 10129 Turin, Italy German Wool Research Institute, Aachen University of Technology, Pauwelsstrasse 8, 52056 Aachen, Germany (literal)
Titolo
  • Surface modification of a synthetic polyurethane by plasma glow discharge: Preparation and characterization of bioactive monolayers (literal)
Abstract
  • In the present study, a surface functionalization of a synthetic polyurethane was carried out by using biofunctional moieties to obtain a material with the appropriate mechanical properties and processing conditions and, at the same time, the advantages of a bioactive material. The polyurethane (PU) was synthesised from poly(e-caprolactone) diol, 1,6-diisocyanatohexane and 1,4-cyclohexane dimethanol as chain extender. PU films were grafted with acrylic acid using argon plasma. The carboxyl groups formed were used to covalently bind model biomimetic/bioactive macromolecules (gelatine and poly (L-lysine). All characterizations (attenuated total reflection Fourier transform infrared spectroscopy, ATR-FTIR; X-ray photoelectron spectroscopy, XPS; atomic force microscopy, AFM; scanning electron microscopy, SEM) confirmed the surface changes at each stage of treatment, both in morphology and in chemical composition. Besides, achieved treatment allowed to obtain a very thin layer of both PAA and macromolecules. Moreover, preliminary in vitro tests were performed using NIH-3T3 fibroblasts as cell model. Both materials showed to support cell adhesion and growth, with poly (Llysine) performing better in activating cellular processes, as it can be seen by cell shape, which appears elongated on poly (L-lysine) coating, whereas on gelatine, cells are more spherical and not uniformly distributed on the polymer surface. (literal)
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