Transformation of the surface compositions of titanium during alkali and heat treatment at different vacuum degrees

Li, Ning-bo; Xiao, Gui‐yong; Tsai, I-Hsien; Zhao, Jun-han; Chen, Xin; Xu, Wanhai; Lu, Yu‐peng

doi:10.1039/c8nj00201k

Cited by 1 publication

(3 citation statements)

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“…10 5 -10 −3 Pa) [149]. Their results showed that at higher vacuum pressures, the structure exhibited larger pores sizes, while improving the HA formability in SBF [149]. Takedama et al postulated that the formation of apatite on alkali-treated titanium occurred through electrostatic interactions between the surface, and specific ions within the aqueous solution [14].…”

Section: Apatite Formation Mechanism Of Alkali-titanate Surfacesmentioning

confidence: 99%

“…explored vacuum pressures during the heat treatment process (ca. 10 5 –10 −3 Pa) [149]. Their results showed that at higher vacuum pressures, the structure exhibited larger pores sizes, while improving the HA formability in SBF [149].…”

Section: Medical Alkaline Titanatesmentioning

confidence: 99%

“…10 5 –10 −3 Pa) [149]. Their results showed that at higher vacuum pressures, the structure exhibited larger pores sizes, while improving the HA formability in SBF [149]. Takedama et al .…”

Section: Medical Alkaline Titanatesmentioning

confidence: 99%

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Developing alkaline titanate surfaces for medical applications

Wadge

McGuire

Thomas

et al. 2023

International Materials Reviews

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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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Section: Apatite Formation Mechanism Of Alkali-titanate Surfacesmentioning

confidence: 99%

Section: Medical Alkaline Titanatesmentioning

confidence: 99%