ACTA

Alginate Biopolymer Coatings Obtained by Electrophoretic Deposition on Ti15Mo Alloy

M. Szklarska^a, G. Dercz^a, W. Simka^b, K. Dudek^a, O. Starczewska^a, M. Łężniak^a and B. Łosiewicz^a,*
^aInstitute of Materials Science, Silesian Interdisciplinary Centre for Education and Research, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
^bFaculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100 Gliwice, Poland

Full Text PDF

In this work, the electrophoretic deposition method has been developed for the fabrication of bioactive alginate coatings on the surface of Ti15Mo implant alloy. Thin ZnO film was deposited cataphoretically as the interlayer prior to anaphoretic deposition of alginate (Alg) which was performed from aqueous solution containing 1 g dm^{- 3} of NaAlg at room temperature. The deposition voltage and time varied in the range 20-50 V and 30-120 min, respectively. The microstructure of Alg coatings was studied by scanning electron microscope, and the surface roughness was analysed using atomic force microscopy. Structure was studied by grazing incidence X-ray diffraction. Chemical composition and functional group were examined using energy dispersive spectrometry and attenuated total reflectance Fourier transform: infrared spectroscopy methods, respectively. It was found that controlling the deposition conditions it is possible to obtain amorphous Alg coatings of variable thickness and porosity. Mechanism of electrophoretic deposition of bioactive Alg coatings on the Ti15Mo alloy surface was discussed.

DOI: 10.12693/APhysPolA.125.919
PACS numbers: 87.18.Fx, 87.85.J-, 82.35.Pq, 87.15.rp, 81.15.-z