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Bioactive glass nano powder and its biomimetic synthesis method

A technology of bioactive glass and nano-powder, which is applied in the field of biomimetic synthesis of bio-active glass nano-powder, can solve the problems of easy to form agglomeration, difficult to control powder particle size, wide particle distribution range, etc. The effect of small particle size and large specific surface area

Inactive Publication Date: 2006-10-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above invention is that the particle size of the prepared powder is difficult to control, the particle distribution range is wide, and it is easy to form agglomeration

Method used

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  • Bioactive glass nano powder and its biomimetic synthesis method
  • Bioactive glass nano powder and its biomimetic synthesis method
  • Bioactive glass nano powder and its biomimetic synthesis method

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Experimental program
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Effect test

Embodiment 1

[0029] (1) Preparation of microemulsion organic template: add octylphenol-based polyoxyethylene ether (TritonX-100), co-surfactant and ammonium hydroxide aqueous solution (concentration 12.5%) or calcium nitrate aqueous solution (concentration 12.5%) in cyclohexane 0.6M), prepare the microemulsion of ammonium hydroxide solution and the microemulsion of calcium nitrate solution;

[0030] (2) Hydrolysis: adding tetraethyl orthosilicate (TEOS) and triethyl phosphate (TEP) to the microemulsion of ammonium hydroxide solution, a hydrolysis reaction occurs, and the hydrolysis reaction time is 30 to 60 minutes. (TEOS): triethyl phosphate (TEP): the weight ratio of ammonium hydroxide aqueous solution is 9: 1: 50;

[0031] (3) mixing: the microemulsion of the calcium nitrate solution configured in step (1) is added in the microemulsion obtained in step (2) by volume ratio 1: 1, and stirred for 60 minutes to obtain a mixed solution;

[0032] (4) aging: place the above mixed solution at ...

Embodiment 2

[0039] (1) Preparation of microemulsion organic template: add octylphenol-based polyoxyethylene ether (TritonX-100), co-surfactant and ammonium hydroxide aqueous solution (concentration 12.5%) or calcium nitrate aqueous solution (concentration 12.5%) in cyclohexane 0.6M), prepare the microemulsion of ammonium hydroxide solution and the microemulsion of calcium nitrate solution;

[0040] (2) Hydrolysis: adding tetraethyl orthosilicate (TEOS) and triethyl phosphate (TEP) to the microemulsion of ammonium hydroxide solution, a hydrolysis reaction occurs, and the hydrolysis reaction time is 30 minutes. ): triethyl phosphate (TEP): the weight ratio of ammonium hydroxide aqueous solution is 13: 1: 100;

[0041] (3) mixing: the microemulsion of the calcium nitrate solution configured in step (1) is added in the microemulsion obtained in step (2) by volume ratio 1: 1, and stirred for 80 minutes to obtain a mixed solution;

[0042] (4) aging: place the above mixed solution at room temp...

Embodiment 3

[0049] (1) Preparation of microemulsion organic template: add octylphenol-based polyoxyethylene ether (TritonX-100), co-surfactant and ammonium hydroxide aqueous solution (concentration 12.5%) or calcium nitrate aqueous solution (concentration 12.5%) in cyclohexane 0.6M), prepare the microemulsion of ammonium hydroxide solution and the microemulsion of calcium nitrate solution;

[0050] (2) Hydrolysis: adding tetraethyl orthosilicate (TEOS) and triethyl phosphate (TEP) to the microemulsion of ammonium hydroxide solution, a hydrolysis reaction occurs, and the hydrolysis reaction time is 30 minutes. ): triethyl phosphate (TEP): the weight ratio of ammonium hydroxide aqueous solution is 9: 1: 50;

[0051] (3) mixing: the microemulsion of the calcium nitrate solution configured in step (1) is added in the microemulsion obtained in step (2) by volume ratio 1: 1, and stirred for 60 minutes to obtain a mixed solution;

[0052] (4) aging: place the above mixed solution at room temper...

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Abstract

The invention relates to a biologically active nano powder and its bionic synthesizing method, which consists of the steps of preparing microemulsion, hydrolyzing, mixing, ageing, demoulding, drying and thermal treatment. The obtained powder contains CaO 36-16 wt%, P2O5 4 wt%, SiO2 60-80 wt%.

Description

technical field [0001] The invention relates to a method for preparing nanometer materials, in particular to a method for biomimetic synthesis of bioactive glass nanometer powder. Background technique [0002] Necrosis, defects and lesions of bone and tooth tissue caused by tumors, inflammation, drug or toxin effects, aging and various traumas in humans are clinically frequent diseases. These diseases often bring great pain to patients, and some even threaten to the safety of patients. At present, bone tissue repair and bone tissue engineering materials that have been clinically used at home and abroad are very different from natural bone tissue in their composition, structure and function, which leads to their unsatisfactory bone repair effect and affinity with tissues and cells. There is an urgent need for new biomaterials with good cell affinity and promoting the growth of new bone tissue in the clinical repair of bone defects and in the research fields of bone tissue en...

Claims

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Application Information

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IPC IPC(8): C03C3/097C03C12/00
CPCC03C3/097C03C4/0007C03C12/00
Inventor 陈晓峰王迎军赵娜如杨宇霞
Owner SOUTH CHINA UNIV OF TECH
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