This study aims to present the possibility to obtain bismuth-doped nanohydroxyapatite\ncoatings on the surface of the titanium implants by using a solution-derived process according to\nan established biomimetic methodology. The bioactivity of the titanium surface was increased by\nan alkali-thermal treatment. Then, under biomimetic conditions, the titanium surface was coated\nwith a Bi-doped nanohydroxyapatite layer by using a modified supersaturated calcification solution\n(SCS) containing a bismuth salt. The apatite deposits were analyzed by scanning electron\nmicroscopy coupled with X-ray analysis (SEM-EDX), X-ray photoelectron spectroscopy (XPS), Xray\ndiffraction (XRD), and digital X-rays radiography method. The results indicate that the Bi-doped\nnanohydroxyapatite coatings on titanium surface were produced. These coatings exhibit a good\nradiopacity, thus enhancing their applications in dental and orthopedic fields. Additionally, the Bidoped\nnanohydroxyapatite coatings show significant antimicrobial activity against Escherichia coli\nand Staphylococcus aureus bacteria.
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