Developing alkaline titanate surfaces for medical applications
Wadge, Matthew D. and McGuire, Jamie and Thomas, Kathryn G. and Stuart, Bryan W. and Felfel, Reda M. and Ahmed, Ifty and Grant, David M. (2023) Developing alkaline titanate surfaces for medical applications. International Materials Reviews, 68 (6). pp. 677-724. ISSN 0950-6608 (https://doi.org/10.1080/09506608.2022.2153217)
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Abstract
Improving the surface of medical implants by plasma spraying of a hydroxyapatite coating can be of critical importance to their longevity and the patient’s convalescence. However, residual stresses, cracking, undesired crystallisation and delamination of the coating compromise the implants lifetime. A promising alternative surface application is an alkali-chemical treatment to generate bioactive surfaces, such as sodium and calcium titanate and their derivatives. Such surfaces obviate the need for high temperatures and resulting micro-crack formation and potentially improve the bioactive and bone integration properties through their nanoporous structures. Also, metallic ions such as silver, gallium and copper can be substituted into the titanate structure with the potential to reduce or eliminate the infections. This review examines the formation and mechanisms of bioactive/antibacterial alkaline titanate surfaces, their successes and limitations, and explores the future development of implant interfaces via multifunctional titanate surfaces on Ti-based alloys and on alternative substrate materials.
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Item type: Article ID code: 84114 Dates: DateEvent18 August 2023Published24 January 2023Published Online22 November 2022AcceptedSubjects: Technology > Chemical engineering
Technology > Mining engineering. Metallurgy
Technology > Mechanical engineering and machineryDepartment: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Pure Administrator Date deposited: 13 Feb 2023 10:45 Last modified: 21 Dec 2024 21:32 URI: https://strathprints.strath.ac.uk/id/eprint/84114