Silver-loaded antibacterial artificial joint and preparation method thereof
An artificial joint, silver-loaded antibacterial technology, applied in the field of replacing silver, to achieve the effects of promoting deposition growth, not easy to drug resistance, and high bonding strength
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Embodiment 1
[0025] (1) First choose Ti6Al4V alloy to process the artificial joint;
[0026] (2) Hydrothermal treatment of the artificial joint surface: the artificial joint is ground and polished, then ultrasonically cleaned with acetone, 70% alcohol, and distilled water, and the hydrothermal reaction is carried out with a sodium hydroxide aqueous solution with a concentration of 10mol / L, and the working temperature is 120 degrees Celsius. The time is 6 hours, and a sodium titanate bioactive coating with a microporous structure is obtained on the surface of the artificial joint.
[0027] (3) Silver doping treatment by immersion method: immerse the surface hydrothermally treated artificial joint at a concentration of 5×10 -2 mol / L AgNO 3 In solution, AgNO with an operating temperature of 60°C 3 The solution was kept constant using a water bath method. Stir with a magnetic stirrer, take out after soaking for 2 to 12 hours, ultrasonically clean with distilled water, and dry at room temper...
Embodiment 2
[0031] (1) First choose Ti6Al4V alloy to process the artificial joint;
[0032] (2) Hydrothermal treatment of the artificial joint surface: the artificial joint is ground and polished, then ultrasonically cleaned with acetone, 70% alcohol, and distilled water, and the hydrothermal reaction is carried out with a sodium hydroxide aqueous solution with a concentration of 10mol / L, and the working temperature is 120 degrees Celsius. The time is 6 hours.
[0033] (3) Silver doping treatment by immersion method: immerse the surface hydrothermally treated artificial joint at a concentration of 2×10 -1 mol / L AgNO 3 In solution, AgNO with an operating temperature of 60°C 3The solution was kept constant using a water bath method. Stir with a magnetic stirrer, take out after soaking for 2 to 12 hours, ultrasonically clean with distilled water, and dry at room temperature.
[0034] (4) Centrifugal load treatment of BMP: fix the artificial joint with silver-doped sodium titanate bioacti...
Embodiment 3
[0037] (1) First choose Ti6Al4V alloy to process the artificial joint;
[0038] (2) Hydrothermal treatment of the artificial joint surface: the artificial joint is ground and polished, then ultrasonically cleaned with acetone, 70% alcohol, and distilled water, and the hydrothermal reaction is carried out with a sodium hydroxide aqueous solution with a concentration of 10mol / L, and the working temperature is 150 degrees Celsius. The time is 72 hours, and a sodium titanate bioactive coating with microporous structure is obtained on the surface of the artificial joint, and its SEM photos and XRD spectra are shown in figure 1 with figure 2 .
[0039] (3) Silver doping treatment by immersion method: immerse the surface hydrothermally treated artificial joint at a concentration of 5×10 -2 mol / L AgNO 3 In solution, AgNO with an operating temperature of 60°C 3 The solution was kept constant using a water bath method. Stir with a magnetic stirrer, take out after soaking for 2 to ...
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