Contact
    Start Publications Poly(dopamine) assisted deposition of adherent PPy film on Ti ...
    ←  Publication Finder
    Attension

    Poly(dopamine) assisted deposition of adherent PPy film on Ti substrate

    Year: 2014

    Journal: PROGRESS IN ORGANIC COATINGS, Vol. 77, p 1890-1900, 20150722

    Authors: Popescu, Simona; Ungureanu, Camelia; Albu, Ana Maria; Pirvu, Cristian

    Organizations: Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Bucharest 011061, Romania; Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Dept Bioresources & Polymer Sci, Bucharest 010072, Romania

    This study aims to address an issue to a subject that is still less present in literature: the adherence of polypyrrole (PPy) films on bioinert substrate. The poly(dopamine) (PDA) assisted deposition of PPy film on titanium substrate was performed in two steps. The chemical self-polymerization of dopamine was performed as a preliminary step from dopamine in Tris buffer solution on titanium substrate. Then, the resulted poly(dopamine) layer consisting of anchors with strong interactions with Ti surface was a new suitable substrate for polypyrrole film electrochemical deposition. The new PDA-PPy films were characterized in terms of interest properties for the desired biomedical applications: adherence, electrochemical stability of PDA-PPy film. wettability, topography, morphology and antibacterial effect. The poly(dopamine) assisted deposition of PPy film has been shown to be a facile and efficient route to improve the adhesion of PPy film on titanium maintaining or improving the properties of polymeric film. (C) 2014 Elsevier B.V. All rights reserved.