Mechanism Study of Calcium Phosphate Deposition on Titanium Surface in Simulated Body Fluid

Abstract:

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Previously, various surface treatments have been used to enhance the ability of titanium surfaces to induce calcium phosphate (Ca-P) formation in simulated body fluid (SBF). However, there were no systematic investigations on the key factors of the surface treatments to control such ability. In this work, three factors are studied for their roles in controlling Ca-P precipitation in SBF: surface roughness, surface chemistry and surface energy. Four kinds of single-step chemical treatments on Ti surfaces were carried out, including alkali treatment (AT), nitric acid treatment (NT), hydrogen peroxide treatment (HPT), and heat treatment. The experimental results show that the surface energy is the most likely controlling factor of Ca-P formation ability.

Info:

Periodical:

Key Engineering Materials (Volumes 342-343)

Edited by:

Young-Ha Kim, Chong-Su Cho, Inn-Kyu Kang, Suk Young Kim and Oh Hyeong Kwon

Pages:

693-696

Citation:

Z. F. Zhao et al., "Mechanism Study of Calcium Phosphate Deposition on Titanium Surface in Simulated Body Fluid", Key Engineering Materials, Vols. 342-343, pp. 693-696, 2007

Online since:

July 2007

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$38.00

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DOI: https://doi.org/10.1002/jbm.a.10482

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[20] 24 28 32 36 40 44 48 52 56 AT H400 H600 H800 HPT NT AE Ti Rutile 2θ2θ2θ2θ 0. 00 0. 05 0. 10 0. 15 0. 20 0. 25 0. 30 TiO/Ti TiOH/Ti AE AT NT HPT H800 H600 H400 (a) (b) (a) (b).

200 400 600 800 1000 1200 1400 1600 1800 Roughness Ra (nm) AE AE AT AE NT AE HPT AE H800 AE H600 AE H400.

DOI: https://doi.org/10.7215/ch_pb_20101007

200 400 600 800 1000 1200 1400 1600 1800 Roughness Ra (nm) MP MP AT MP NT MP HPT MP H800 MP H600 MP H400 Figure 3 comparison of Ca-P induction ability after three-day immersion. Figure 4 Scatter contact angle diagram (a) and its statistical mean value corresponding surface energy calculated from O-W method (b). (a1) AE AT (a2) MP AT (b1) AE NT (b2) MP NT (c1) AE HPT (c2) MP HPT (d1) AE H800 (e1) AE H600 (f1) AE H400 (d2) MP H800 (e2) MP H600 (f2) MP H400 Pure Ti AT NT HPT H800 H600 H400.

DOI: https://doi.org/10.7554/elife.09269.025

[5] [10] [15] [20] [25] [30] [35] [40] [45] [50] [55] [60] [65] [70] Surface energy mJ/m2 dispersion polar sum (a) (b).

[10] [20] [30] [40] [50] [60] [70] [80] H800 H600 AT NT HPT H400 Water Glycerol Contact angel (Degree) Pure Ti.

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