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Silicon carbide (SiC)/ titanium dioxide (TiO2) composite structure biological support material and preparation method thereof

A biological stent and composite structure technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve problems such as insufficient strength, reduce the number of replacements, promote growth, and reduce medical costs.

Active Publication Date: 2013-06-12
EAST EIGHT ENERGY (SHANGHAI) CO LTD
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Problems solved by technology

The generated nanofibers are corrosion-resistant, conducive to cell adhesion, proliferation, sterilization and disinfection, etc., but their strength is not enough

Method used

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  • Silicon carbide (SiC)/ titanium dioxide (TiO2) composite structure biological support material and preparation method thereof
  • Silicon carbide (SiC)/ titanium dioxide (TiO2) composite structure biological support material and preparation method thereof
  • Silicon carbide (SiC)/ titanium dioxide (TiO2) composite structure biological support material and preparation method thereof

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Embodiment Construction

[0018] SiC / TiO of the present invention 2 A preparation method for a composite structure biological support material, comprising the following steps:

[0019] (1) Preparation of TiO by hydrothermal method 2 Nanofibers :

[0020] Put the titanium sheet in acetone for ultrasonic cleaning for 8-10 minutes, and then put it in a drying oven to dry. Tilt the titanium sheet into the cleaned reactor and immerse it in 2mol / L NaOH solution. Put the reaction kettle in a resistance furnace and heat it at 220°C-240°C for 2-10 hours, then cool down naturally. Take out the titanium sheet, rinse with distilled water, and dry to obtain the desired surface with TiO 2 Nanofiber substrates. Using JSM-5610LV scanning electron microscope at 10kV high voltage to study TiO 2 The morphology of nanofibers was observed and analyzed. Depend on figure 1 A shows that the TiO prepared by hydrothermal method 2 The mesh of nanofibers is between 5-50 μm, regular in shape and evenly distributed.

[0...

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Abstract

The invention discloses a silicon carbide (SiC) / titanium dioxide (TiO2) composite structure biological support material and a preparation method of the SiC / TiO2 composite structure biological support material. According to the SiC / TiO2 composite structure biological support material, TiO2 nano-fibers are developed on a titanium metal substrate to form a latticed microhole structure, and then a SiC transition layer is covered on the surfaces of the TiO2 nano-fibers. The SiC / TiO2 composite structure biological support material and the preparation method of the SiC / TiO2 composite structure biological support material explore a new way to modify a SiC biocompatibility transition layer in large area on the surface of a material according to the biocompatibility material. A tissue growth environment is imitated in a microcosmic level, and material / cell transition layers are prepared on the surface of a titanium skeleton, wherein the transition layers are provided with good nano-fiber mesh-shaped structures which can contain cells. When the transition layer is modified by SiC, a cell adhesion function and a cell proliferation function are improved, and the SiC / TiO2 composite structure biological support material and the preparation method of the SiC / TiO2 composite structure biological support material can be used for regeneration and reconstruction of skeleton structures.

Description

technical field [0001] The present invention relates to a biological scaffold, in particular to a SiC / TiO 2 Composite structure bio-scaffold material and preparation method thereof. Background technique [0002] Due to the increasingly prominent problems of traffic accidents, sports trauma, social aging and the pursuit of high-level quality of life, people's demand for medical devices and biomedical materials is increasing day by day. At present, titanium is widely used in clinical bone grafting or damaged repair materials. metal or titanium alloy. However, according to investigations and analysis in recent years, cells on the surface of artificial titanium bones often cannot grow well, mainly because the corrosion resistance of active metals or alloys such as titanium and titanium alloys depends on the protection of the surface. Sexual oxide film. Once the surface film is destroyed, severe corrosion will occur. This leads to melanization around the implanted prosthesis ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/30C23C14/35C23C14/06
Inventor 董文钧陈旭黄欢娣
Owner EAST EIGHT ENERGY (SHANGHAI) CO LTD
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