Bone repair material and preparation method thereof
A bone repair and material composition technology, applied in the field of medical biomaterials, can solve problems such as poor long-term anti-infection ability, non-degradable bone prosthetic materials, and unfavorable bone growth in patients
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Embodiment 1
[0092] The preparation method of nano silicon nitride-magnesium phosphate bone cement composite bone repair material comprises the following steps:
[0093] (1) Dissolve nano-silicon nitride particles into 200 μmol / L puerarin solution, stir for 2 hours, and then centrifuge and dry to obtain the desired drug-loaded nano-silicon nitride particles;
[0094] (2) The bone cement powder is uniformly mixed with magnesium oxide and sodium dihydrogen phosphate at a molar ratio of 1:1;
[0095] (3) Mix 0.75g of drug-loaded nano-silicon nitride particles with 4.25g of magnesium phosphate bone cement powder evenly, take 4g of gallic acid aqueous solution and mix with the powder, put it into the mold and solidify (the solidification time is 6~10min) and place it at 37 ℃, 100% humidity environment to cure 72h.
[0096] In the nano-silicon nitride-magnesium phosphate bone cement composite bone repair material, the proportion of nano-silicon nitride is 15wt%, and the proportion of magnesium ...
Embodiment 2
[0098] The preparation method of nano silicon nitride-magnesium phosphate bone cement composite bone repair material comprises the following steps:
[0099] (1) Dissolve nano-silicon nitride particles into 200 μmol / L puerarin solution, stir for 2 hours, and then centrifuge and dry to obtain the desired drug-loaded nano-silicon nitride particles;
[0100] (2) The bone cement powder is uniformly mixed with magnesium oxide and sodium dihydrogen phosphate at a molar ratio of 1:1;
[0101] (3) Mix 1.5g of drug-loaded nano-silicon nitride particles with 3.5g of magnesium phosphate bone cement powder evenly, take 4g of gallic acid aqueous solution and mix with the powder, put it into the mold for solidification (setting time is 6~10min), and place it in 37 ℃, 100% humidity environment to cure 72h.
[0102] In the nano-silicon nitride-magnesium phosphate bone cement composite bone repair material, the proportion of nano-silicon nitride is 30wt%, the proportion of magnesium phosphate ...
Embodiment 3
[0104] The preparation method of nano silicon nitride-magnesium phosphate bone cement composite bone repair material comprises the following steps:
[0105] (1) Dissolve nano-silicon nitride particles into 100 μmol / L puerarin solution, stir for 2 hours, then centrifuge and dry to obtain the desired drug-loaded nano-silicon nitride particles;
[0106] (2) The bone cement powder is uniformly mixed with magnesium oxide and sodium dihydrogen phosphate at a molar ratio of 1:1;
[0107] (3) Mix 1.5g of drug-loaded nano-silicon nitride particles with 3.5g of magnesium phosphate bone cement powder evenly, take 4g of gallic acid aqueous solution and mix with the powder, put it into the mold and solidify (the solidification time is 6~10min) and place it in 37 ℃, 100% humidity environment to cure 72h.
[0108] In the nano-silicon nitride-magnesium phosphate bone cement composite bone repair material, the proportion of nano-silicon nitride is 30wt%, the proportion of magnesium phosphate ...
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