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Coatings, Volume 8, Issue 1 (January 2018)
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Cover Story (view full-size image) The increasing demand for a superior performance of orthopaedic metallic prostheses requires novel [...] Read more. The increasing demand for a superior performance of orthopaedic metallic prostheses requires novel coating strategies leading to bio-responsive surfaces. In this study, electrophoretic deposition (EPD) was chosen as a versatile and cost-effective method to develop bioactive coatings on model stainless steel substrates. The coatings are based on the natural polymer zein combined with bioactive glass (BG) particles. The investigation was carried out with two different BG compositions, one Cu-doped to enable antibacterial effects in the developed system. The study demonstrated the bioactivity of all the coatings by the formation of hydroxyapatite (HA) on immersion in simulated body fluid (SBF) for 7 days. The HA layer is known to enhance the bonding of the coating to bone tissue. The coating morphology, degradation of zein films and ion release profiles were characterised in detail. View this paper