Preparation method of carbon nanotube/titania nanotube bio-composite coat material

A technology of titanium dioxide and carbon nanotubes, which is applied in the interdisciplinary field of materials science and biomedicine, can solve problems affecting the success rate of implantation, and achieve the effect of increasing the proliferation rate

Inactive Publication Date: 2013-12-25
INNER MONGOLIA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, titanium and titanium alloy implants themselves are biologically inert materials. After being directly implanted into the human body, they will be surrounded by a layer of cystic fibrous membrane, which makes it difficult to quickly form a firm bond with the matrix, which affects the success rate of implantation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Electrophoretic deposition time is 10s

[0022] (1) Use the metal Pt sheet as the cathode, and the polished pure titanium plate as the anode, the distance between the two electrodes is 1cm, and the anodic oxidation voltage is 20V in the solution of glycerol / ammonium fluoride / deionized water as the electrolyte , time 60min, take it out, place it in deionized water to wash, dry, and obtain a titanium plate with a titanium dioxide nanotube array on the surface, the diameter of the titanium dioxide nanotube is about 80nm;

[0023] (2) Heating the titanium plate with the titanium dioxide nanotube array on the surface obtained in step (1) to 500° C., keeping it warm for 120 minutes, and cooling with the furnace;

[0024] (3) Get 100mg of multi-walled carbon nanotubes in a round bottom flask, add in the mixed acid (V 硫酸 :V 硝酸 =3:1), sonicated for 30min, heated to reflux for 12h, cooled, washed with water until neutral, and vacuum-dried at 60°C for 24h to obtain carboxyl-func...

Embodiment 2

[0029] Electrophoretic deposition time is 20s

[0030] (1) Use the metal Pt sheet as the cathode, and the polished pure titanium plate as the anode, the distance between the two electrodes is 1cm, and the anodic oxidation voltage is 20V in the solution of glycerol / ammonium fluoride / deionized water as the electrolyte , time 60min, take it out, place it in deionized water to wash, dry, and obtain a titanium plate with a titanium dioxide nanotube array on the surface, the diameter of the titanium dioxide nanotube is about 80nm;

[0031] (2) Heating the titanium plate with the titanium dioxide nanotube array on the surface obtained in step (1) to 500° C., keeping it warm for 120 minutes, and cooling with the furnace;

[0032] (3) Get 100mg of multi-walled carbon nanotubes in a round bottom flask, add in the mixed acid (V 硫酸 :V 硝酸 =3:1), sonicated for 30min, heated to reflux for 12h, cooled, washed with water until neutral, and vacuum-dried at 60°C for 24h to obtain carboxyl-func...

Embodiment 3

[0037] Electrophoretic deposition time is 30s

[0038] (1) Use the metal Pt sheet as the cathode, and the polished pure titanium plate as the anode, the distance between the two electrodes is 1cm, and the anodic oxidation voltage is 20V in the solution of glycerol / ammonium fluoride / deionized water as the electrolyte , time 60min, take it out, place it in deionized water to wash, dry, and obtain a titanium plate with a titanium dioxide nanotube array on the surface, the diameter of the titanium dioxide nanotube is about 80nm;

[0039] (2) Heating the titanium plate with the titanium dioxide nanotube array on the surface obtained in step (1) to 500° C., keeping it warm for 120 minutes, and cooling with the furnace;

[0040] (3) Get 100mg of multi-walled carbon nanotubes in a round bottom flask, add in the mixed acid (V 硫酸 :V 硝酸 =3:1), sonicated for 30min, heated to reflux for 12h, cooled, washed with water until neutral, and vacuum-dried at 60°C for 24h to obtain carboxyl-func...

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Abstract

The invention relates to a preparation method of a carbon nanotube/titania nanotube bio-composite coat material. The preparation method comprises the following steps: preparing an aligned titania nanotube array coat having a caliber of 50-100nm on the surface of a pure titanium plate through utilizing an anodization process; and uniformly depositing functionalized multi-wall carbon nanotubes on a titanium matrix with the surface having a titania nanotube array through utilizing an electrophoretic deposition process. The reproduction rate of human osteoblast on the surface of the composite coat prepared in the invention is higher than the reproduction rate of the human osteoblast on the pure titanium plate having a smooth surface.

Description

technical field [0001] The invention relates to the cross field of material science and biomedicine, in particular to a method for preparing a biocomposite coating that uses a titanium implant with a uniform array of titanium dioxide nanotubes on its surface as a substrate and supports multi-walled carbon nanotubes on its surface. . Background technique [0002] In recent years, carbon nanotubes have attracted widespread attention in the field of biomedicine due to their excellent physical and chemical properties. The application of carbon nanotubes in the field of biomedicine mainly focuses on biosensors, drug carriers, and bioscaffold materials. Carbon nanotubes have obvious advantages when used as scaffold materials: ① high specific strength; ② special one-dimensional nanostructure, which is more suitable for building an environment for cell growth; ③ stable chemical properties, easy for surface modification. [0003] Titanium and titanium alloys have become human hard ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D15/00C25D11/26
Inventor 白玉程琳王俊马文
Owner INNER MONGOLIA UNIV OF TECH
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