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Composite antibiotic material in medical use of active carbon fiber-Nano silver, and prepearation method

A technology of activated carbon fiber and antibacterial material is applied in the field of activated carbon fiber-nanosilver composite medical antibacterial material and its preparation, and achieves the effects of good medical application prospect, good performance and simple method.

Inactive Publication Date: 2006-02-01
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical fiber mixed with nano-ZnO and nano-SiO2 developed by Japan's Teijin has the functions of deodorization and air purification. This fiber is used for deodorant dressings, bandages, pajamas, etc. for long-term bedridden patients and hospitals; ZnO is added to polyester fiber to produce anti-ultraviolet fiber, which also has the functions of antibacterial, disinfection and deodorization; similarly, adding metal nanoparticles to chemical fiber can play an antistatic effect, so nanotechnology can be used in non-toxic and harmless fibers. The application in the medical field is the research goal pursued by researchers in the medical field, and there are very few such reports at present.

Method used

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  • Composite antibiotic material in medical use of active carbon fiber-Nano silver, and prepearation method
  • Composite antibiotic material in medical use of active carbon fiber-Nano silver, and prepearation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation steps of activated carbon fiber-nanometer silver composite medical antibacterial material are as follows:

[0032] (1) First put the precursor carbon fiber into the heating furnace to isolate the air and heat and carbonize, so that the hydrogen, oxygen, nitrogen and other components in it are separated and escaped to make carbon fiber, and then the prepared carbon fiber is placed in 35wt% KOH aqueous solution Soak in the medium for 16 hours, take it out, dry and weigh it, put it in the constant temperature zone of the activation furnace, and raise the temperature to the predetermined temperature (700°C) at a heating rate of 5-20°C / min under the protection of nitrogen, and keep the temperature for 20 minutes. , weighed after being taken out under the protection of nitrogen, washed and dried repeatedly, weighed again, calculated fiber yield, and measured specific surface area.

[0033] (2) Take the prepared 2g / L AgNO 3 Put the silver-containing solution i...

Embodiment 2

[0037] The preparation method is the same as in Example 1, except that the carbon fibers are soaked in 10 wt% NaOH aqueous solution for 8 hours, then kept at a constant temperature of 820°C for 50 minutes, cooled under the protection of nitrogen, washed with water, and dried; the activated carbon fibers are immersed in 3g / L silver After 3 hours of ammonium-containing silver ion solution, shake in a 45°C water bath for 20 hours, filter the solution, and rinse the fiber with distilled water.

[0038] (1) First put the precursor carbon fiber into the heating furnace to isolate the air and heat and carbonize, so that the hydrogen, oxygen, nitrogen and other components in it are separated and escaped to make carbon fiber, and then the prepared carbon fiber is placed in 15wt% KOH aqueous solution Soak in the medium for 16 hours, take it out, dry and weigh it, put it in the constant temperature zone of the activation furnace, and raise the temperature to the predetermined temperature ...

Embodiment 3

[0040] To compare the results of traditional wound dressings containing antibiotics, pure carbon fiber materials, mesoporous activated carbon silver-loaded materials, and activated carbon fiber-nano silver composite medical antibacterial materials applied to exudative infected wounds of burned animals.

[0041] The test results are as follows:

[0042] (1) Comparison of antibacterial properties between antibiotics and nano silver

[0043] Items Antibiotics Nanosilver

[0044] Antibacterial spectrum The antibacterial spectrum is different due to different antibiotics, the antibacterial spectrum is broad, and it is not limited by the classification of bacteria

[0045] Usually only against a few types of bacteria

[0046] Has antibacterial effect.

[0047] Drug resistance prone to drug-resistant strains. no resistance

[0048] Drug-resistant bacteria are ineffective, and there is crossover between antibiotics, which have the same bactericidal effect

[0049...

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Abstract

A medical antibacterial activated carbon fibre-nanoAg material used as wound dressing is prepared through activating the carbon-contained fibres by gasifying-activating method, immersing them in Ag-contained solution or spraying said solution onto them, and oscillating for embedding the Ag nanoparticles in fibres. Its advantages are high and durable antibacterial action.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and specifically relates to an active carbon fiber-nano silver composite medical antibacterial material and a preparation method thereof. The prepared material is used as a medical wound dressing material, and plays the role of wound protection, adsorption, and sterilization, and special care patients District medical special needs sterile protective clothing. Background technique [0002] The commonly used adsorbents are activated carbon, silica gel, acid clay and zeolite molecular sieve. However, these materials not only have low adsorption capacity, but also have poor operability and regeneration ability. Therefore, the search for better adsorbent materials has always been a topic of concern to experts and scholars from all over the world. [0003] Activated Carbon Fiber (ACF) is a new type of carbon material with unique adsorption function developed after powdery and granular a...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01N25/08A61L15/18A41D13/12
Inventor 宋建星乌兰哈斯白晋孙燚
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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