Bionic bio-active three-D porous composite material and making method thereof
A bioactive, three-dimensional porous technology, applied in medical science, prosthesis, surgery, etc., can solve problems such as lack of biological activity, mismatch between biodegradation rate and cell growth rate, and unsatisfactory three-dimensional structure of the scaffold, so as to achieve abundant sources, Excellent cell affinity, cheap effect
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Embodiment 1
[0019] In the first step, the bioactive glass powder synthesized by the sol-gel method is ground and sieved to obtain ultrafine particles with a particle size of 10 microns;
[0020] In the second step, the porogen is ground and sieved to control the particle size between 100 and 200 microns;
[0021] The third step weighs the fully dried PHA, dissolves it in a certain volume of chloroform, and adds the sieved porogen and BG powder, wherein the weight ratio of the porogen to PHA is 10:1, and the weight ratio of BG to PHA is 10:1. The weight ratio is 1:8; the above components are fully stirred evenly to obtain a thick slurry;
[0022] The fourth step is to inject the above slurry into the pre-prepared special-shaped mold, pressurize at a constant temperature of 35°C, so that the porogen is evenly distributed in the system; place the mold in a natural ventilation environment to slowly evaporate the solvent; dry in vacuum Dry in the oven for 24 hours; open the mold to take out t...
Embodiment 2
[0026] In the first step, the bioactive glass powder synthesized by the sol-gel method is ground and sieved to obtain ultrafine particles with a particle size of 100 microns;
[0027] In the second step, the porogen is ground and sieved to control the particle size between 200 and 400 microns;
[0028] The third step weighs the fully dried PHA, dissolves it in a certain volume of chloroform, and adds the sieved porogen and BG powder, wherein the weight ratio of the porogen to PHA is 5:1, and the weight ratio of BG to PHA is 5:1. The weight ratio is 1:7; the above components are fully stirred evenly to obtain a thick slurry;
[0029] The fourth step is to inject the above slurry into the pre-prepared special-shaped mold, pressurize at a constant temperature of 35°C, so that the porogen is evenly distributed in the system; place the mold in a natural ventilation environment to slowly evaporate the solvent; dry in vacuum Dry in the oven for 24 hours; open the mold to take out th...
Embodiment 3
[0033] In the first step, the bioactive glass powder synthesized by the sol-gel method is ground and sieved to obtain ultrafine particles with a particle size of 100 microns;
[0034] In the second step, the porogen (sodium chloride, potassium chloride or sucrose, etc.) is ground and sieved to control the particle size between 500 and 700 microns;
[0035] The third step weighs the fully dried PHA, dissolves it in a certain volume of chloroform, and adds the sieved porogen and BG powder, wherein the weight ratio of the porogen to PHA is 2:1, and the weight ratio of BG to PHA The weight ratio is 1:1.5; the above components are fully stirred evenly to obtain a thick slurry;
[0036] The fourth step is to inject the above slurry into the pre-prepared special-shaped mold, pressurize at a constant temperature of 35°C, so that the porogen is evenly distributed in the system; place the mold in a natural ventilation environment to slowly evaporate the solvent; dry in vacuum Dry in th...
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