CN1830894A - Bioactivity, porous nanometer titanium oxide ceramic used for sclerous tissues restoration and its prepn. method - Google Patents
Bioactivity, porous nanometer titanium oxide ceramic used for sclerous tissues restoration and its prepn. method Download PDFInfo
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- CN1830894A CN1830894A CN 200610020654 CN200610020654A CN1830894A CN 1830894 A CN1830894 A CN 1830894A CN 200610020654 CN200610020654 CN 200610020654 CN 200610020654 A CN200610020654 A CN 200610020654A CN 1830894 A CN1830894 A CN 1830894A
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Abstract
A bioactive porous nano-titanium oxide ceramic for repairing hard tissue by allowing the bone tissue to grow into it is prepared from the titanium oxide nanoparticles, crystal grain growth inhibitor, adhesive and foaming agent through foaming, drying, shaping and sintering.
Description
One, technical field
The present invention relates to biological active materials and technology of preparing thereof, particularly relate to a kind of bioactivity, porous nanometer titanium oxide ceramic that is used for hard tissue repair and preparation method thereof, belong to biomedical engineering field.
Two, background technology
After being meant and implanting, the biological active materials that is used for hard tissue repair realizes chemically combined material by forming the osteoid apatite interfacial layer with osseous tissue.The biological active materials that is widely used in hard tissue repair at present comprises bioactive metal of hydroxylapatite ceramic, bioactivity glass, surface modification etc.In these biological active materials implantable bones, realize bioactive Chemical bond by on the interface of material and osseous tissue, forming the osteoid apatite interfacial layer.Yet the subject matter that described biological active materials faces is: the back that implants is because the particulate that the degraded of embedded material or wearing and tearing produce may cause the generation infected at implant site; While its cost height of material therefor, wherein the market price of hydroxyapatite is at least more than 5000 yuans/kilogram; The cost of bioactivity glass and bioactive metal is higher, thereby has limited low income patient's use.In order to improve the more vast low income patient personage's of stratum quality of life, must develop the biological active materials that is used for hard tissue repair relatively inexpensive, that cost performance is high.
At present, research and develop out biological activity titanium oxide ceramics that is used for hard tissue repair and preparation method thereof through the contriver, obtained China Patent Right, patent No. ZL200310104134.X, the biological activity titanium oxide ceramics of this method preparation has microcosmic connectivity hole, the grain-size of its biological activity titanium oxide ceramics between 0.1～1 micron, 0.1～3 micron of intergranule pore size; Though because the biological activity titanium oxide ceramics that provides of foregoing invention has microcosmic connectivity hole, do not have the connectivity hole on macroscopic view, the osseous tissue material internal of can't growing into so can only be in implantation material surface and osseous tissue formation biological activity combination.For making the osseous tissue material internal of can growing into, reach the effect of better reparation sclerous tissues, need give biological active materials simultaneously with macroscopical connectivity hole.Therefore, the contriver is through constantly exploratory development, wish to obtain a kind of not only had anti-infection ability, but also have the bioactivity, porous nanometer titanium oxide ceramic of macroscopical connectivity hole and microcosmic connectivity hole simultaneously, this task of the present invention just place.
Three, summary of the invention
The objective of the invention is at the existing deficiency of described existing biological activity titanium oxide ceramics, provide a kind of both had microcosmic connectivity hole, simultaneously also have macroscopical connectivity hole, for hard tissue repair, and in vivo or adsorb calcium and phosphorus ions under the external physiological environment, form bone like apatite layer, form the chemically combined bioactivity, porous nanometer titanium oxide ceramic of biological activity with the osseous tissue of the macroporosity of growing at pore surface; And the preparation method that this porous nanometer titanium oxide ceramic is provided.This method technology is simple, easy to operate; Prepared bioactivity, porous nanometer titanium oxide ceramic material not only has anti-infection ability, also have and to allow grow into macroscopical connectivity hole of material internal of osseous tissue, the osseous tissue material internal of growing into forms cross one another form combination, and osseous tissue and material form the biological activity Chemical bond on the interface, provide better, the biological active materials of the porous nanometer titanium oxide ceramic of more practical reparation sclerous tissues.
Purpose of the present invention realizes by the technical scheme that is made of following measure.
The present invention is used to repair the preparation method of the bioactivity, porous nanometer titanium oxide ceramic of sclerous tissues, to satisfy the red stone flour of nano-titanium oxide flour gold of bio-medical requirement, or anatase octahedrite powder, or their both composite powders are raw material, add grain growth inhibitor and get powder, according to the present invention, in powder, add tackiness agent, add whipping agent again, the following processing step of process makes both has microcosmic connectivity hole, also has the bioactivity, porous nanometer titanium oxide ceramic of macroscopical connectivity hole of 100～500 microns:
(1) adding nano oxidized titanium valve and mass percent in container is that 0.01～10% grain growth inhibitor gets powder, powder is stirred, adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, the whipping agent hydrogen peroxide is added obtain to contain 1～10% hydrogen peroxide frothing solution in the above-mentioned aqueous solution again;
(2) behind powder that will evenly stir and hydrogen peroxide frothing solution 1: 3 by volume～6 ratio thorough mixing, foaming, drying forming then under 10～60 ℃ of temperature;
(3) base substrate after the moulding is put into the retort furnace roasting, and rise to holding temperature with 1～50 ℃/minute temperature rise rate, holding temperature is 600～1200 ℃, under holding temperature, be incubated 1～5 hour, cool to room temperature with the furnace, promptly make the porous nanometer titanium oxide ceramic piece of the nanocrystal that is used for hard tissue repair of biologically active.
Among the preparation method of the present invention, said grain growth inhibitor is selected from hydroxyapatite, or magnesium oxide, or aluminum oxide, or Calcium Pyrophosphate.
In a preferred embodiment, when the present invention is raw material with the gold redrock nano titanium oxide powder, the hydroxyapatite that adds mass percent 0.01～10% in the raw material is a grain growth inhibitor, obtain powder, adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, to obtain to contain 1～10% hydrogen peroxide frothing solution in the whipping agent hydrogen peroxide adding aqueous solution again, make the porous nanometer titanium oxide ceramic piece by above-mentioned (2) step and (3) process steps again.
In still another preferred embodiment, when the present invention was raw material with the nano oxidized titanium valve of anatase octahedrite, the aluminum oxide that adds mass percent 0.01～10% in the raw material was a grain growth inhibitor, obtains powder; Adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, to obtain to contain 1～10% hydrogen peroxide frothing solution in the whipping agent hydrogen peroxide adding aqueous solution again, make the porous nanometer titanium oxide ceramic piece by above-mentioned (2) step and (3) process steps again.
In another preferred embodiment, when the present invention mixed nano oxidized titanium valve and is raw material with rutile and anatase octahedrite, the Calcium Pyrophosphate that adds mass percent 0.01～10% was a grain growth inhibitor, obtained powder; Adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, to obtain to contain 1～10% hydrogen peroxide frothing solution in the whipping agent hydrogen peroxide adding aqueous solution again, make the porous nanometer titanium oxide ceramic piece by above-mentioned (2) step and (3) process steps again.
The bioactivity, porous nanometer titanium oxide ceramic that the above-mentioned arbitrary described preparation method of the present invention makes, have in this pottery and can allow grow into macroscopical connectivity hole of 100～500 microns of material internal of osseous tissue, the grain-size of pottery contains the microcosmic connectivity hole that promising osteoid apatite generates to be provided the crystal grain nucleation site and 0.1～3 micron size of nutritional channel is provided for new bone growth at intergranule between 0.1～0.3 micron.
The bioactivity, porous nanometer titanium oxide ceramic that the present invention is prepared is owing to have macroscopical connectivity hole and microcosmic connectivity hole simultaneously, therefore, not only make the osseous tissue material internal of growing into form cross one another form combination, and osseous tissue and material form the biological activity Chemical bond on the interface, reaches the effect of better reparation sclerous tissues.
The present invention compared with prior art has following characteristics:
1, the bioactivity, porous nanometer titanium oxide ceramic of the present invention's preparation has macroscopical connectivity hole of 100～500 microns, this not only forms biological activity combination at implantation material surface and osseous tissue, and also provide path, thereby realize the better reparation of defective tissue for the osseous tissue material internal of growing into.
2, the bioactivity, porous nanometer titanium oxide ceramic of the present invention's preparation is the porous ceramics piece with nanocrystal, the porous ceramics piece adsorbs calcium and phosphorus ions in vivo or under the external physiological environment, form bone like apatite layer on macroporosity surface, thereby form bioactive Chemical bond with the osseous tissue of the macroporosity of growing into.
3, the bioactivity, porous nanometer titanium oxide ceramic of the present invention's preparation can satisfy the more user demand of extensive patients.
Four, description of drawings
Fig. 1 bioactivity, porous nanometer titanium oxide ceramic macroscopic view of the present invention connectivity pore texture synoptic diagram
Fig. 2 bioactivity, porous nanometer titanium oxide ceramic microcosmic of the present invention connectivity pore texture synoptic diagram
In the accompanying drawing, 1 is macroscopical connectivity hole, and 2 is crystal grain, and 3 is microcosmic connectivity hole.
Five, embodiment
Below by specific embodiment the present invention is carried out more specific description, but it only is used to illustrate embodiments more of the present invention, and should not be construed as qualification protection domain of the present invention.
Among the embodiment, used nano-titanium oxide powder raw material is golden red stone flour, anatase octahedrite powder or their both composite powders.Raw materials used particle diameter is between 1～100 nanometer.The metallic impurity elements total amount is less than 50mg/kg in the nano oxidized titanium valve, and arsenic element content is less than 3mg/kg, and cadmium element content is less than 5mg/kg, and mercury element content is less than 5mg/kg, and lead element content is less than 30mg/kg.
Embodiment 1
In container, put into the gold redrock nano titanium oxide powder, add the grain growth inhibitor hydroxyapatite of mass percent 1%, obtain powder, and powder is stirred; Adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 4% the aqueous solution, again the whipping agent hydrogen peroxide is added the frothing solution that obtains to contain 2% hydrogen peroxide in the above-mentioned aqueous solution; Then with powder and frothing solution with 1: 4 ratio thorough mixing of volume ratio after, in baking oven under 40 ℃ of temperature behind foaming, the drying forming, put into the retort furnace sintering, and rise to holding temperature with 50 ℃/minute temperature rise rate, this moment, holding temperature was 1200 ℃, insulation cooled to room temperature with the furnace after 4 hours under holding temperature, promptly made bioactive porous nanometer titanium oxide ceramic piece with nanocrystal.In the bioactivity, porous nanometer titanium oxide ceramic piece that this example obtained, have macroscopical connectivity hole (1) of 200 microns of mean pore sizes, its crystal grain (2) size is less than 200 nanometers, and the microcosmic connectivity hole (3) of 500 nanometers is arranged at intergranule.The sem photograph of its structure is seen Fig. 1 and Fig. 2.Fig. 1 is for amplifying the structure iron of macroscopical connectivity hole of 50 times, and Fig. 2 is for amplifying the structure iron of 30000 times microcosmic connectivity hole.Its macroscopical connectivity hole (1) of 200 microns provides path for the osseous tissue material internal of growing into, and the microcosmic connectivity hole (3) of 500 nanometers provides nutritional channel for the growth and the survival of osseous tissue simultaneously.
Put into the nano oxidized titanium valve of anatase octahedrite in container, the aluminum oxide that adds mass percent 5% is a grain growth inhibitor, obtains powder, and powder is stirred; Adhesive polyethylene alcohol is dissolved in the deionized water obtains 8% the aqueous solution, again the whipping agent hydrogen peroxide is added the frothing solution that obtains to contain 8% hydrogen peroxide in the aqueous solution; Then with powder and frothing solution with 1: 6 ratio thorough mixing of volume ratio after, in baking oven 60 ℃ down behind foaming, the drying forming, put into the retort furnace sintering, and rise to holding temperature with 50 ℃/minute temperature rise rate, this moment, holding temperature was 600 ℃.Insulation cooled to room temperature with the furnace after 3 hours under holding temperature, promptly obtained bioactive porous nanometer titanium oxide ceramic piece with nanocrystal.In the bioactivity, porous nanometer titanium oxide ceramic piece that this example obtained, have macroscopical connectivity hole of 400 microns of mean pore sizes, its grain-size is less than 100 nanometers, and the microcosmic connectivity hole of 1500 nanometers is arranged at intergranule.Macroscopic view connectivity hole provides path for the osseous tissue material internal of growing into, and microcosmic connectivity hole provides nutritional channel for the growth and the survival of osseous tissue simultaneously.
Put into the nano oxidized titanium valve of mixing of rutile and anatase octahedrite in container, the Calcium Pyrophosphate that adds mass percent 1% is a grain growth inhibitor, obtains powder; Adhesive polyethylene alcohol is dissolved in the deionized water obtains 1% the aqueous solution, again the whipping agent hydrogen peroxide is added the frothing solution that obtains to contain 1% hydrogen peroxide in the aqueous solution; Then with powder and frothing solution with 1: 3 ratio thorough mixing of volume ratio after, in baking oven 30 ℃ down behind foaming, the drying forming, put into the retort furnace sintering, and rise to holding temperature with 50 ℃/minute temperature rise rate, this moment, holding temperature was 1000 ℃; Insulation cooled to room temperature with the furnace after 2 hours under holding temperature, promptly obtained bioactive porous nanometer titanium oxide ceramic piece with nanocrystal.In the bioactivity, porous nanometer titanium oxide ceramic piece that this example obtained, have macroscopical connectivity hole of 100 microns of mean pore sizes, its grain-size is less than 300 nanometers, and the microcosmic connectivity hole of 500 nanometers is arranged at intergranule.Macroscopic view connectivity hole provides path for the osseous tissue material internal of growing into, and microcosmic connectivity hole provides nutritional channel for the growth and the survival of osseous tissue simultaneously.
Embodiment 4
Put into the gold redrock nano titanium oxide powder in container, the magnesium oxide that adds mass percent 8% is grain growth inhibitor, obtains powder; Adhesive polyethylene alcohol is dissolved in the deionized water obtains 5% the aqueous solution, again the whipping agent hydrogen peroxide is added the frothing solution that obtains to contain 5% hydrogen peroxide in the aqueous solution; Then with powder and frothing solution with 1: 5 ratio thorough mixing of volume ratio after, in baking oven 50 ℃ down behind foaming, the drying forming, put into the retort furnace sintering, rise to holding temperature with 50 ℃/minute temperature rise rates, this moment, holding temperature was 800 ℃; Insulation cooled to room temperature with the furnace after 5 hours under holding temperature, promptly made bioactive porous nanometer titanium oxide ceramic with nanocrystal.In the bioactivity, porous nanometer titanium oxide ceramic that is obtained, have macroscopical connectivity hole of 300 microns of mean pore sizes, its grain-size is less than 200 nanometers, and the microcosmic connectivity hole of 700 nanometers is arranged at intergranule.Macroscopic view connectivity hole provides path for the osseous tissue material internal of growing into, and microcosmic connectivity hole provides nutritional channel for the growth and the survival of osseous tissue simultaneously.
The porous nanometer titanium oxide ceramic that embodiment 2-4 obtains has and similar structure illustrated in figures 1 and 2.
Macroscopical connectivity hole of bioactivity, porous nanometer titanium oxide ceramic provided by the invention overcome embedded material just surface and osseous tissue form the defective of biological activity combination, and provide better path for the osseous tissue material internal of growing into; The microcosmic connectivity hole of porous nanometer titanium oxide ceramic provides nutritional channel for the growth and the survival of osseous tissue simultaneously.Bioactivity, porous nanometer titanium oxide ceramic of the present invention is implanted in human or animal's the tooth or the damaged chamber of bone, the osseous tissue material internal of in 1 month, well growing into, material not only forms cross one another form with osseous tissue and combines, on the interface, also form biological activity combination, reach the better positively effect of repairing sclerous tissues.
Claims (6)
1. preparation method who is used for the bioactivity, porous nanometer titanium oxide ceramic of hard tissue repair, to satisfy the red stone flour of nano-titanium oxide flour gold of bio-medical requirement, or anatase octahedrite powder, or their both composite powders are raw material, add grain growth inhibitor and get powder, it is characterized in that in powder, adding tackiness agent, add whipping agent again, make bioactivity, porous nanometer titanium oxide ceramic with 100～500 microns of macroporosities through following processing step:
(1) adding nano oxidized titanium valve and mass percent in container is that 0.01～10% grain growth inhibitor gets powder, powder is stirred, adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, again will the whipping agent hydrogen peroxide add and obtain to contain 1～10% hydrogen peroxide frothing solution in the aqueous solution;
(2) behind the powder that will evenly stir and hydrogen peroxide frothing solution 1: 3 by volume～6 ratio thorough mixing that prepare, foaming under 10～60 ℃ of temperature, drying forming then;
(3) base substrate after the moulding is put into the retort furnace roasting, and rise to holding temperature with 1～50 ℃/minute temperature rise rate, holding temperature is 600～1200 ℃, under holding temperature, be incubated 1～5 hour, cool to room temperature with the furnace, promptly make and both had macroscopical connectivity hole, have the biologically active nanometer crystalline porous nanometer titanium oxide ceramic piece of microcosmic connectivity hole again.
2. the method for claim 1 is characterized in that said grain growth inhibitor is selected from hydroxyapatite, or magnesium oxide, or aluminum oxide, or Calcium Pyrophosphate.
3. the method for claim 1, when it is characterized in that being raw material with the gold redrock nano titanium oxide powder, the hydroxyapatite that adds mass percent 0.01～10% in the raw material is a grain growth inhibitor, obtain powder, adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, to obtain to contain 1～10% hydrogen peroxide frothing solution in the whipping agent hydrogen peroxide adding aqueous solution again, and go on foot according to (2) step and (3) described in the claim 1 and make the porous nanometer titanium oxide ceramic piece.
4. the method for claim 1, when it is characterized in that being raw material with the nano oxidized titanium valve of anatase octahedrite, the aluminum oxide that adds mass percent 0.01～10% in the raw material is a grain growth inhibitor, obtains powder; Adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, again the whipping agent hydrogen peroxide is added the frothing solution that obtains to contain 1～10% hydrogen peroxide in the aqueous solution, go on foot according to (2) step and (3) described in the claim 1 and make the porous nanometer titanium oxide ceramic piece.
5. the method for claim 1, when it is characterized in that being raw material with anatase octahedrite and rutile mixing nano-titanium oxide, the Calcium Pyrophosphate that adds mass percent 0.01～10% in the raw material is a grain growth inhibitor, obtains powder; Adhesive polyethylene alcohol is dissolved in the deionized water obtains to contain 1～8% the aqueous solution, again the whipping agent hydrogen peroxide is added the frothing solution that obtains to contain 1～10% hydrogen peroxide in the aqueous solution, go on foot according to (2) step and (3) described in the claim 1 and make the porous nanometer titanium oxide ceramic piece.
6. aforesaid right requires the bioactivity, porous nanometer titanium oxide ceramic piece that arbitrary described preparation method makes among the 1-5, have in this ceramic block and allow grow into macroscopical connectivity hole (1) of 100～500 microns of material internal of osseous tissue, the crystal grain of ceramic block (2) size contains the microcosmic connectivity hole (3) that promising osteoid apatite generates to be provided the crystal grain nucleation site and 0.1～3 micron size of nutritional channel is provided for new bone growth at its intergranule between 0.1～0.3 micron.
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| CN101745148B (en) * | 2009-12-31 | 2013-04-10 | 四川大学 | Method for preparing plasma-sprayed three-dimensional porous titanium bioactive coating |
| CN105435305A (en) * | 2015-12-17 | 2016-03-30 | 西南交通大学 | Porous titanium composite material and preparation method thereof |
| CN108355401A (en) * | 2018-02-09 | 2018-08-03 | 纳琦环保科技有限公司 | A kind of preparation method of novel inorganic porous purification filter core |
| CN111187069A (en) * | 2020-02-21 | 2020-05-22 | 四川大学 | Titanium dioxide and magnesium oxide composite biomedical ceramic material and preparation method thereof |
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|---|---|---|---|---|
| SE524334C2 (en) * | 2002-09-30 | 2004-07-27 | Cerbio Tech Ab | Heat-generating biocompatible ceramic materials and processes for their preparation |
| JP2004332092A (en) * | 2003-05-09 | 2004-11-25 | Noriaki Sakurai | Method for producing foamed sinter |
| CN1241653C (en) * | 2003-12-26 | 2006-02-15 | 四川大学 | Biological active nano titanium oxide ceramic for hard tissue repairing and its preparing method |
| CN1559671A (en) * | 2004-03-08 | 2005-01-05 | 初景涛 | Manufacturing method of porous titanium dioxide |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745148B (en) * | 2009-12-31 | 2013-04-10 | 四川大学 | Method for preparing plasma-sprayed three-dimensional porous titanium bioactive coating |
| CN105435305A (en) * | 2015-12-17 | 2016-03-30 | 西南交通大学 | Porous titanium composite material and preparation method thereof |
| CN105435305B (en) * | 2015-12-17 | 2019-02-26 | 西南交通大学 | A kind of POROUS TITANIUM composite material and preparation method |
| CN108355401A (en) * | 2018-02-09 | 2018-08-03 | 纳琦环保科技有限公司 | A kind of preparation method of novel inorganic porous purification filter core |
| CN108355401B (en) * | 2018-02-09 | 2021-01-08 | 纳琦环保科技有限公司 | Preparation method of inorganic porous purification filter element |
| CN111187069A (en) * | 2020-02-21 | 2020-05-22 | 四川大学 | Titanium dioxide and magnesium oxide composite biomedical ceramic material and preparation method thereof |
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