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Method for preparing near-infrared responsive functional coating on surface of cylindrical titanium nail and application

A near-infrared, cylindrical technology, applied in the direction of coatings, medical preparations containing active ingredients, pharmaceutical formulations, etc., can solve problems such as limited growth, and achieve no impact on the environment, low cost, good photocatalytic performance and photothermal performance effect

Inactive Publication Date: 2019-11-12
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional anodized titanium dioxide coating can basically only be produced on planar titanium metal due to the limitation of the process, which limits the growth of titanium dioxide coating on conventional cylindrical titanium nails

Method used

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  • Method for preparing near-infrared responsive functional coating on surface of cylindrical titanium nail and application
  • Method for preparing near-infrared responsive functional coating on surface of cylindrical titanium nail and application
  • Method for preparing near-infrared responsive functional coating on surface of cylindrical titanium nail and application

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Embodiment 1

[0035] (1) Polish metal cylinder titanium nails with a diameter of 1mm and a length of 6mm with 240 mesh, 400 mesh, 600 mesh, 800 mesh and 1200 mesh sandpaper until the surface is smooth, then put them into a beaker and add acetone, ethanol and deionized water in turn Ultrasonic cleaning was performed to remove impurities on the surface of the titanium nails, and then dried under vacuum at 50°C for 12 hours.

[0036] (2) Mix 1mL hydrofluoric acid, 4mL nitric acid and 5mL deionized water to prepare an etching solution, immerse the polished titanium nail in the etching solution for 2 minutes, take out the titanium nail and clean it with deionized water, and then soak it in ethanol . 10mg / mL polystyrene ethanol

[0037] (3) Preparation of titanium dioxide nanotubes on the surface of titanium nails: Dissolve 0.34g of ammonium fluoride into 5mL of deionized water, add the ammonium fluoride solution to 95mL of ethylene glycol solution to prepare an electrolyte, and then treat the ...

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Abstract

The invention provides a method for preparing a near-infrared responsive functional coating on the surface of a cylindrical titanium nail. The method for preparing the near-infrared responsive functional coating on the surface of the cylindrical titanium nail comprises the following steps that the titanium nail is pretreated; a titanium dioxide nanotube is grown on the titanium nails: the treatedtitanium nail is placed into an electrolyte and connected to an anode, a cathode is connected with a custom tubular graphite electrode, the reaction voltage is 40V, the reaction is carried out at roomtemperature for 3h, the ethanol is dried after ultrasonication, and the mixture is calcined at 450 DEG C for 2h to obtain titanium nail / TNT; gold nanoparticles and carbon quantum dots are synthesized; the gold nanoparticles and the carbon quantum dots are loaded onto the titanium titan nanotube on the surface of the titanium nail to obtain titanium nails / TNT / AU / CQDS. The titanium dioxide nanotubeloaded with the gold nanoparticles and the carbon quantum dots on the surface of the cylindrical titanium nail can be prepared by the method, and the obtained titanium nail with functional coating has good photothermal effect and generates active oxygen after being irradiated for 15 minutes by infrared rays at 808 nm, and both staphylococcus aureus and escherichia coli have better antibacterial effects, as well as good cell compatibility and osteogenic properties.

Description

technical field [0001] The present invention relates to a preparation method of a functional composite material, more specifically, to a preparation method and application of a near-infrared responsive functional coating on the surface of a cylindrical titanium nail. Background technique [0002] Biomedical materials are materials that are used for clinical diagnosis, treatment of lesions, repair or replacement of tissues and organs, or enhancement of existing tissues and organs without causing other negative effects on organisms. Biomedical materials can be divided into medical metal materials, medical polymer materials, medical ceramics and medical composite materials. Among the medical metal materials, titanium metal is currently a commonly used implant material in orthopedics because of its good mechanical properties, strong corrosion resistance, elastic modulus close to human bones, and biological inertness, especially in orthopedic internal fixation operations. The lo...

Claims

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Application Information

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IPC IPC(8): A61L31/08A61L31/02A61L31/14A61L31/16A61K41/00A61P31/04
CPCA61K41/0052A61K41/0057A61L31/022A61L31/084A61L31/088A61L31/14A61L31/16A61L2300/404A61L2400/12A61L2400/18A61L2420/02A61L2420/06A61P31/04A61K2300/00Y02A50/30
Inventor 吴水林金晨刘想梅
Owner HUBEI UNIV
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