Preparation method of hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets

A carbon nanotube composite and molybdenum disulfide technology, applied in bandages, medical science, etc., can solve the problems of low oxygen content in wounds, unfavorable wound repair, etc., and achieve enhanced enzyme activity, good shape adaptability, and promotion of electron transfer. Effect

Active Publication Date: 2022-07-08
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, bacteria are extremely resistant to conventional antibiotics due to acquired resistance
In addition, the oxygen content in wounds infected by bacteria is less, which is not conducive to wound repair

Method used

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  • Preparation method of hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets
  • Preparation method of hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets
  • Preparation method of hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets

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Embodiment 1

[0033] The present embodiment provides a method for preparing a hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets, comprising the following steps:

[0034] Step 1, ultrasonically dispersing the carbon nanotubes in deionized water to obtain a dispersion liquid containing carbon nanotubes; the volume of the deionized water is 0.80 times the mass of the carbon nanotubes, the unit of the volume of the deionized water is mL, and the carbon nanotubes The unit of mass is mg; the ultrasonic frequency of the ultrasonic dispersion is 40KHz, the ultrasonic power is 600w; the time of the ultrasonic dispersion is 10min; the length of the carbon nanotube is 10μm, and the diameter is 10nm;

[0035] Step 2, dissolving sodium molybdate and thiourea in the carbon nanotube-containing dispersion described in step 1 to obtain system A; the quality of the sodium molybdate is 12.0 times the quality of the carbon nanotubes; the quality of the thiourea is 16.0 times the mass ...

Embodiment 2

[0059] The present embodiment provides a method for preparing a hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets, comprising the following steps:

[0060] Step 1, ultrasonically dispersing the carbon nanotubes in deionized water to obtain a dispersion liquid containing carbon nanotubes; the volume of the deionized water is 0.40 times the mass of the carbon nanotubes, the unit of the volume of the deionized water is mL, and the carbon nanotubes The unit of mass is mg; the ultrasonic frequency of the ultrasonic dispersion is 40KHz, the ultrasonic power is 600w; the time of the ultrasonic dispersion is 30min; the length of the carbon nanotube is 30μm, and the diameter is 20nm;

[0061] Step 2, dissolving sodium molybdate and thiourea in the carbon nanotube-containing dispersion described in step 1 to obtain system A; the quality of the sodium molybdate is 6.5 times the quality of the carbon nanotubes; the quality of the thiourea is 8.1 times the mass of...

Embodiment 3

[0068] The present embodiment provides a method for preparing a hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets, comprising the following steps:

[0069] Step 1, ultrasonically dispersing the carbon nanotubes in deionized water to obtain a dispersion liquid containing carbon nanotubes; the volume of the deionized water is 0.44 times the mass of the carbon nanotubes, the unit of the volume of the deionized water is mL, and the carbon nanotubes The unit of mass is mg; the ultrasonic frequency of the ultrasonic dispersion is 40KHz, the ultrasonic power is 600w; the time of the ultrasonic dispersion is 60min; the length of the carbon nanotube is 20μm, and the diameter is 15nm;

[0070] Step 2, dissolving sodium molybdate and thiourea in the carbon nanotube-containing dispersion described in step 1 to obtain system A; the quality of the sodium molybdate is 4.0 times the quality of the carbon nanotubes; the quality of the thiourea is 5.1 times the mass of...

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Abstract

The invention discloses a preparation method of a hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets. Molybdenum disulfide nanosheets, carbon nanotube composite molybdenum disulfide nanosheets are added to a mixed system containing polyvinyl alcohol and sodium alginate, and reacted under the action of borax to obtain a hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets . The hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets obtained by the preparation method of the present invention has antibacterial, oxygen supply, good photothermal conversion ability and good shape adaptability, and can be quickly and automatically damaged by external force. Healing, suitable for different wounds, it can convert 808nm near-infrared light into high heat, and can quickly and efficiently eliminate bacteria in a short time to avoid wound infection.

Description

technical field [0001] The invention belongs to the technical field of biomedical materials, and in particular relates to a preparation method of a hydrogel based on carbon nanotube composite molybdenum disulfide nanosheets. Background technique [0002] Chronic skin defects caused by bacterial infection are difficult to repair, mainly because the inflammatory response can lead to cell death and tissue necrosis, slowing the wound repair process. In addition, bacteria are extremely resistant to conventional antibiotics due to acquired resistance. In addition, the oxygen content in bacterially infected wounds is low, which is not conducive to wound repair. Abundant oxygen can protect bacteria, accelerate cell proliferation and collagen synthesis, promote tissue regeneration, and facilitate wound healing. Providing adequate oxygen while suppressing bacterial infection and excessive inflammation is an important step in the treatment of bacterial infection wounds. [0003] Hyd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L26/00C08J3/075C08L29/04C08L5/04
CPCA61L26/0023A61L26/0014A61L26/0004A61L26/008A61L26/0066C08J3/075C08J2305/04C08J2429/04A61L2300/102A61L2300/404A61L2300/108C08L5/04C08L29/04
Inventor 朱晨辉范代娣李阳傅蓉湛
Owner NORTHWEST UNIV
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