Karali, BK and Das, S and Behera, G and Mallik, M (2024) Synthesis of hydroxyapatite nanocomposite coating by electrodeposition route: a state of the art review. In: Canadian Metallurgical Quarterly .
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Hydroxyapatite (HA) is widely employed as a coating on implants due to its biocompatibility. Deposition techniques for HA include sol-gel, sputter coating, vacuum deposition, plasma spraying, hot isostatic pressing, biomimetic deposition, pulsed laser deposition, electrophoretic deposition (EPD), and electrodeposition. Among these, electrodeposition is preferred for its ability to form consistent crystals at low temperatures with minimal stress. However, pure HA coatings often suffer from low bonding strength, limiting mechanical performance. To overcome this, reinforcements, such as metals, polymers, and ceramics, are incorporated to enhance mechanical strength, bioactivity, and antibacterial properties. Researchers have reported that ceramic reinforcements like TiO� and ZrO� at concentrations of 3 and 6 mM/L improve HA's mechanical and bioactive properties. Polymer-reinforced composites, such as those with multiwalled carbon nanotubes (MWCNTs), enhance osteoconduction, cytocompatibility, and corrosion resistance, improving implant performance. Metallic reinforcements like Ag and Zn add antibacterial properties, reducing post-implantation infections. These reinforcements collectively address the limitations of pure HA coatings, offering a multifunctional solution for implant applications. This review focuses on the electrodeposition of reinforced HA nanocomposite coatings, emphasising the role of ceramic, polymer, and metallic reinforcements in improving the mechanical, biological, and antibacterial performance of implants, making them effective in biomedical applications. © 2024 Canadian Institute of Mining, Metallurgy and Petroleum.
| Item Type: | Editorials/Short Communications |
|---|---|
| Publication: | Canadian Metallurgical Quarterly |
| Publisher: | Taylor and Francis Ltd. |
| Additional Information: | The copyright for this article belongs to the Publisher. |
| Keywords: | Biological implants; Ceramic coatings; Corrosion resistant coatings; Electrodeposition; Electrostatic coatings; Hard facing; Hydrostatic pressing; Metal implants; Plasma spraying; Polymeric implants; Pulsed laser deposition; Sol-gel process; Spark plasma sintering; Titanium dioxide; Vacuum deposition, Antibacterial properties; Ceramic reinforcements; Hydroxyapatite coating; Implant; Mechanical; Mechanical performance; Metallic reinforcements; Nano-composite coating; Osteoconductivity; State-of-the art reviews, Hot isostatic pressing |
| Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
| Date Deposited: | 21 Dec 2024 04:10 |
| Last Modified: | 21 Dec 2024 04:10 |
| URI: | http://eprints.iisc.ac.in/id/eprint/87138 |
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