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Beta-dicalcium silicate porous biological ceramic bracket and preparation method and application thereof

A technology of bioceramics and dicalcium silicate, applied in ceramic products, applications, and other household appliances, can solve problems such as lack of strength, achieve improved material exchange rate and efficiency, strong plasticity, and controllable product shape and size Effect

Active Publication Date: 2013-04-24
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, porous bioceramic scaffolds generally lack sufficient strength. The compressive strength of hydroxyapatite porous bioceramic scaffolds generally does not exceed 10MPa, and the compressive strength of tricalcium phosphate porous scaffolds generally does not exceed 15MPa, which can barely reach the level of cancellous bone. strength requirements

Method used

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  • Beta-dicalcium silicate porous biological ceramic bracket and preparation method and application thereof
  • Beta-dicalcium silicate porous biological ceramic bracket and preparation method and application thereof
  • Beta-dicalcium silicate porous biological ceramic bracket and preparation method and application thereof

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Embodiment 1

[0035] a kind of like figure 1 The β-dicalcium silicate porous bioceramic support of the present invention is shown. The β-dicalcium silicate porous bioceramic support is made of porous organic polyurethane foam as a precursor, which is impregnated and sintered.

[0036] Such as figure 2 The preparation method of the shown β-dicalcium silicate porous bioceramic support of the present invention comprises the following steps:

[0037] (1) Precursor template processing: According to the shape and size required by the product, process the polyurethane sponge to obtain a cylindrical porous scaffold template with a diameter of about 19mm and a thickness of about 10mm; then immerse the template in 10% NaOH solution Soak in water for 6 hours, then soak the template in distilled water for 12 hours, take it out and dry it for later use.

[0038] (2) Preparation of powder: CaCO 3 and SiO 2 The molar ratio is 2:1, and tricalcium phosphate (TCP) with a mass of 0.8% of the above powder...

Embodiment 2

[0047] This embodiment adopts another preparation method of the β-dicalcium silicate porous bioceramic support of the present invention, comprising the following steps:

[0048] (1) Precursor template processing: According to the shape and size required by the product, process the polyurethane sponge to obtain a cylindrical porous scaffold template with a diameter of about 19mm and a thickness of about 10mm; then immerse the template in 10% NaOH solution Soak in water for 6 hours, then soak the template in distilled water for 12 hours, take it out and dry it for later use.

[0049] (2) Preparation of powder: CaCO 3 and SiO 2 The molar ratio is 2:1, and tricalcium phosphate (TCP) with a mass of 2.2% of the above powder is added as a stabilizer. After ball milling, it was immediately taken out and dried through a 100-mesh sieve for later use.

[0050] (3) Dipping and slurrying: Weigh the mixed powder in step (2), and add 3.5% sodium carboxymethylcellulose (CMC) as a binder. ...

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Abstract

The invention discloses a beta-dicalcium silicate porous biological ceramic bracket and a preparation method and an application thereof. The preparation method of the beta-dicalcium silicate porous biological ceramic bracket comprises the following steps: adopting porous organic foam as a precursor; adding the foam precursor in ceramic slurry for impregnating and slurry hanging after treatment; drying and firying after removing spare ceramic slurry so as to manufacture the beta-dicalcium silicate porous biological ceramic bracket. The biological ceramic bracket is good in through hole property, mechanical performance and biological compatibility, and can be applied to bone tissue engineering.

Description

technical field [0001] The invention includes a bone tissue engineering biological support material and its preparation method and application, in particular to a bioceramic support and its preparation method and application. Background technique [0002] Tissue engineering is an interdisciplinary subject that applies the principles of cell biology, biomaterials and engineering to research and develop bioactive substitutes for repairing or improving the structure and function of human diseased tissues or organs. Its research mainly includes three aspects: seed cells, biomaterial scaffolds and growth signals. Bio-scaffold materials are the key factors in tissue engineering, so the development and construction of ideal extracellular scaffold materials is one of the research priorities and hotspots in tissue engineering at this stage. [0003] Bone tissue engineering is a branch of tissue engineering. Bone tissue engineering refers to planting isolated osteoblasts, bone marro...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B35/22A61L27/10
CPCA61L27/10A61L27/56A61L2400/08A61L2430/02C04B35/22C04B35/6261C04B35/64C04B38/06C04B38/0615C04B2111/00836C04B2235/442C04B2235/447C04B2235/6562C04B2235/6567C04B38/0054
Inventor 刘海蓉戴瑶刘斌斌周征夏磊磊
Owner HUNAN UNIV
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