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    Chitosan/poly(4-vinylpyridine) coatings formed on AgNPs-decorated titanium

    Year: 2022

    Journal: Mater. Lett., Volume 319, JUL 15

    Authors: Pawlowski, Lukasz; Bartmanski, Michal; Mielewczyk-Gryn, Aleksandra; Zielinski, Andrzej

    Keywords: Thin films; Chitosan; Poly(4-vinylpyridine); Silver nanoparticles; Electrophoretic deposition; Corrosion

    Electrophoretic deposition (EPD) of chitosan/poly(4-vinylpyridine) (chit/P4VP) coatings on titanium substrates previously decorated with silver nanoparticles (AgNPs) was performed at different content of P4VP in the suspension and different voltage values. The results revealed that the composite coatings were formed, well-adjacent to the titanium substrate, of suitable roughness, hydrophilicity, and corrosion resistance. The voltage value and P4VP content had complex effects on coating properties, due to the effects of process parameters on microstructure and adhesion. The best coatings of both chitosan and P4VP were formed at 10 V at 0.1% (w/w) during a one-minute deposition. These pH-sensitive antibacterial coatings may, based on the present results, be recommended for surface modification of titanium implants.
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