2024-03-29T08:51:28Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/835492023-10-31T12:43:49Zcom_10234_7033com_10234_9col_10234_8618
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Cordero Arias, L.
author
Cabañas Polo, Sandra
author
Gao, Haoxiang
author
Gilabert, Jessica
author
Sánchez-Vilches, Enrique
author
Roether, J. A.
author
Schubert, D. W.
author
Virtanen, S.
author
Boccaccini, Aldo R.
author
2013-03
Novel chitosan composite coatings containing titania nanoparticles (n-TiO2) for biomedical applications were developed by electrophoretic deposition (EPD) from ethanol–water suspensions. The optimal ethanol–water ratio was studied in order to avoid bubble formation during the EPD process and to ensure homogeneous coatings. Different n-TiO2 contents (0.5–10 g L−1) were studied for a fixed chitosan concentration (0.5 g L−1) and the properties of the electrophoretic coatings obtained were characterized. Coating composition was analyzed by thermogravimetric analysis (TG), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis. Scanning electron microscopy (SEM) was employed to study both the surface and the cross section morphology of the coatings, and the thicknesses (2–6 μm) of the obtained coatings were correlated with the initial ceramic content. Contact angle measurements, as a preliminary study to predict hypothetic protein attachment on the coatings, were performed for different samples and the influence of a second chitosan layer on top of the coatings was also tested. Finally, the electrochemical behavior of the coatings, evaluated by polarization curves in DMEM at 37 °C, was studied in order to assess the corrosion resistance provided by the n-TiO2/chitosan coatings.
Cordero-Arias L., Cabanas-Polo S., Gao H. X. , Gilabert J., Sanchez E., Roether J., Schubert D., Virtanen S. and Boccaccini A. R. : ‘Electrophoretic deposition of nanostructured TiO2/chitosan composite coatings on stainless steel’, RSC Adv., 2013, 3, 11247-11254.
http://hdl.handle.net/10234/83549
http://dx.doi.org/10.1039/C3RA40535D
Titania (TiO2)
composite coatings
stainless steel
Electrophoretic deposition
Electrophoretic deposition of nanostructured-TiO2/chitosan composite coatings on stainless steel