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Biological active ceramic bracket with nano/micron hierarchical pore structure and preparation method of biological active ceramic bracket

A bioactive ceramic, multi-level pore technology, applied in ceramic products, other household appliances, applications, etc., can solve the problems of difficult to precisely control the size and distribution of nano-pores, poor repeatability of the hierarchical pore structure, etc., to increase the overall Porosity, good application value, overcoming the effect of high porosity

Active Publication Date: 2019-05-28
广州康睿医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented describes methods for creating tiny holes or cavities inside materials that have specific functions such as promoting cell growth within them (osteogenesis). These small openings allow fluids from outside into their interior while still allowing cells to freely move around it without being obstructive. Additionally, this design allows for controlled release of drugs at desired locations throughout its body when implanted surgically. Overall, this new material provides an effective solution for tissue engineering applications where there may exist challenges related to maintaining structural integrity under physiological conditions.

Problems solved by technology

This patented technical problem addressed in this patent relates to improving the efficiency at which calcium carbonate (CaCO4/C>) forms crystalline matrices within specific regions inside or outside of certain types of material such as ceramia, making them suitable for creation of functionalized scaffles for dental applications like prosthesis reconstruction.

Method used

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  • Biological active ceramic bracket with nano/micron hierarchical pore structure and preparation method of biological active ceramic bracket
  • Biological active ceramic bracket with nano/micron hierarchical pore structure and preparation method of biological active ceramic bracket
  • Biological active ceramic bracket with nano/micron hierarchical pore structure and preparation method of biological active ceramic bracket

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Experimental program
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Effect test

Embodiment 1

[0037] (1) Preparation of monodisperse PS microspheres: first mix 0.4g K 2 S 2 o 8 Dissolve in 20g of deionized water, then stir and mix 0.12g of NaCl, 172g of deionized water and 8g of styrene, under a nitrogen atmosphere, heat the oil bath to 75°C, add K dropwise 2 S 2 o 8 The solution was dripped within 30 minutes, kept warm for 4 hours, and a white suspension was obtained; then centrifuged at 10,000 rpm / min for 10 minutes in a high-speed centrifuge, washed with deionized water and centrifuged again for three times, and finally washed with absolute ethanol and centrifuged Three times, vacuum dry at 40°C for 24h, as figure 1 As shown, a PS microsphere powder with a particle size of 600 nm was obtained.

[0038] (2) Preparation of bioactive ceramic slurry containing PS microspheres: 0.2756g hydroxypropyl methylcellulose (HPMC) was dissolved in 9ml of ammonium polyacrylate solution, and the pH value of the solution was adjusted to 9 with 1M ammonia water Add 22.9745g of ...

Embodiment 2

[0041] (1) Preparation of monodisperse PS microspheres: first mix 0.4g K 2 S 2 o 8 Dissolve in 20g of deionized water, then stir and mix 0.12g of NaCl, 172g of deionized water and 8g of styrene, under a nitrogen atmosphere, heat the oil bath to 75°C, add K dropwise 2 S 2 o 8 The solution was dripped within 30 minutes, kept warm for 4 hours, and a white suspension was obtained; then centrifuged at 10,000 rpm / min for 10 minutes in a high-speed centrifuge, washed with deionized water and centrifuged again for three times, and finally washed with absolute ethanol and centrifuged Three times, vacuum drying at 40°C for 24 hours to obtain PS microsphere powder with a particle size of 600nm

[0042] (2) Preparation of bioactive ceramic slurry containing PS microspheres: 0.2756g hydroxypropyl methylcellulose (HPMC) was dissolved in 9ml of ammonium polyacrylate solution, and the pH value of the solution was adjusted to 9 with 1M ammonia water Add 22.9745g of β-TCP powder and grind ...

Embodiment 3

[0045] (1) Preparation of monodisperse PS microspheres: first mix 0.4g K 2 S 2 o 8 Dissolve in 20g of deionized water, then stir and mix 0.12g of NaCl, 172g of deionized water and 8g of styrene, under a nitrogen atmosphere, heat the oil bath to 75°C, add K dropwise 2 S 2 o 8 The solution was dripped within 30 minutes, kept warm for 4 hours, and a white suspension was obtained; then centrifuged at 10,000 rpm / min for 10 minutes in a high-speed centrifuge, washed with deionized water and centrifuged again for three times, and finally washed with absolute ethanol and centrifuged Three times, vacuum drying at 40°C for 24 hours to obtain PS microsphere powder with a particle size of 600nm

[0046] (2) Preparation of bioactive ceramic slurry containing PS microspheres: 0.2756g hydroxypropyl methylcellulose (HPMC) was dissolved in 9ml of ammonium polyacrylate solution, and the pH value of the solution was adjusted to 9 with 1M ammonia water Add 22.9745g of β-TCP powder and grind ...

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Abstract

The invention discloses a biological active ceramic bracket with a nano/micron hierarchical pore structure and a preparation method of the biological active ceramic bracket. The preparation method includes the following steps that (1) monodisperse microspheres with the particle size height capable of being controlled are prepared through a soap-free emulsion method; (2) the microspheres are evenlydispersed in ceramic paste, and the ceramic paste with good printability is obtained; (3) the biological active ceramic bracket with the micron order pore size is printed through a 3D printing technology; (4) the printed bracket is sintered, and the biological active ceramic bracket with the nano/micron hierarchical pore structure is obtained. According to the biological active ceramic bracket with the nano/micron hierarchical pore structure and the preparation method of the biological active ceramic bracket, pore-formingtemplates with the particle size capable of being controlled are evenlydispersed in the printing paste, the sintering characteristics of ceramic and the characteristics of precise control of the micropore structure through the 3D printing technology, the biological active ceramic bracket with the nano/micron hierarchical pore structure is successfully and precisely constructed, and the difficult problem that existing 3D printing technologies cannot accurately controlthe nanoscale pore structure is solved.

Description

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Claims

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Application Information

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Owner 广州康睿医疗器械有限公司
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