Preparation method of magnetic borate biological-activity glass support
A borate glass and borate glass powder technology, applied in medical science, prosthesis, etc., can solve the problems of limited application, inconvenient use and portability, complex equipment, etc. Degradation properties, pain-reducing effect
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[0034]
[0035] The preparation method of magnetic nanoparticles is a chemical co-precipitation method, which includes the following steps:
[0036] Dissolve ferrous salt and ferric salt in water, stir and heat to 50±5°C under the protection of inert gas, slowly add ammonia water, continue to stir and slowly heat to 80±5°C, react for at least 1 hour, cool and separate the brown precipitate , washing and drying to obtain magnetic nanoparticles.
[0037] Among them, the inert gas is preferably nitrogen. Ammonia as a reactant.
[0038]
[0039] The magnetic borate glass paste uses at least the above-mentioned magnetic nanoparticles and borate glass powder as raw materials.
[0040] Among them, the network former of borate glass powder is B 2 o 3 , or for B 2 o 3 with SiO 2 and P 2 o 5 any one or a combination of the two.
[0041] The exosomes of the borate glass powder are metal oxides. The metal oxides are preferably alkali metal oxides, alkaline earth metal oxide...
Embodiment 1
[0063] This embodiment provides a method for preparing a magnetic borate bioactive glass support, comprising the following steps:
[0064] (1), the preparation steps of magnetic nanoparticles:
[0065] Accurately weigh FeCl 2 5mM and FeCl 3 10mM, and dissolve the two in 60mL of ultrapure water, stir and heat to 50°C under the protection of nitrogen, then slowly add 15mL of ammonia water, continue to stir and heat to 80°C, react for 1h, cool to room temperature after the reaction is completed, and separate The resulting brown precipitate was removed, washed and dried to obtain magnetic nanoparticles.
[0066] Among them, in this step, Fe 2+ with Fe 3+ The molar ratio is 1:2.
[0067] The X-ray diffraction pattern (XRD) of the obtained magnetic nanoparticles of this step is as follows figure 1 shown.
[0068] (2), the preparation steps of borate glass powder:
[0069] According to the glass component distribution ratio in Table 1 below, weigh the analytical grade of the ...
Embodiment 2
[0084] This embodiment provides a method for preparing a borate magnetic borate bioactive glass support, comprising the following steps:
[0085] (1), the preparation steps of magnetic nanoparticles:
[0086] Accurately weigh FeSO 4 5mM and Fe 2 (SO 4 ) 3 5mM, and dissolve the two in 60mL of ultrapure water, stir and heat to 50°C under the protection of nitrogen, then slowly add 15mL of ammonia water, continue to stir and heat to 80°C, react for 1h, cool to room temperature after the reaction, and separate The resulting brown precipitate was removed, washed and dried to obtain magnetic nanoparticles.
[0087] Among them, in this step, Fe 2+ with Fe 3+ The molar ratio is 1:2.
[0088] (2), the preparation steps of borate glass powder:
[0089] According to the glass component distribution ratio in Table 1, weigh the analytical grade of the corresponding substance as a glass raw material, mix all kinds of glass raw materials well, put them in a platinum crucible, melt th...
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