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Wet-chemical deposition of functional coatings for bone implantology.

Since the early 1980s, research on the modification of bone implant surfaces by applying coatings has mainly focused on the application of inorganic calcium phosphate (CaP) coatings using physical deposition techniques. Organic components of the extracellular bone matrix, on the other hand, play an essential role in the process of bone healing, but cannot be applied using these physical techniques. Therefore, a recent trend in biomaterials research involves development of novel wet-chemical deposition techniques for both inorganic and organic coatings. This study reviews the major wet-chemical coating techniques that are used for the deposition of inorganic CaP coatings and organic biomolecules coatings.