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Multifunctional material integrating bactericidal and hemostatic properties and chemical and biological warfare agent protective properties and preparation method of multifunctional material

A multi-functional, combat agent technology, applied in medical science, absorbent pads, bandages, etc., can solve the problems of inconvenience, high production cost, heavy load, etc., achieve good stability, promote wound healing, and excellent decontamination efficiency. Effect

Inactive Publication Date: 2017-01-04
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, MOFs powder is used as a decontamination agent, which not only has problems such as heavy load and inconvenient portability, but also has high production costs.

Method used

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  • Multifunctional material integrating bactericidal and hemostatic properties and chemical and biological warfare agent protective properties and preparation method of multifunctional material
  • Multifunctional material integrating bactericidal and hemostatic properties and chemical and biological warfare agent protective properties and preparation method of multifunctional material
  • Multifunctional material integrating bactericidal and hemostatic properties and chemical and biological warfare agent protective properties and preparation method of multifunctional material

Examples

Experimental program
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Effect test

Embodiment 1

[0021] (1) Dissolve 2.0g of sodium hydroxide in 38.0g of water to obtain a 5wt.% NaOH solution, then add 4.7g of sodium chloroacetate. After dissolving, immerse 0.12g chitosan fiber in sodium chloroacetate solution, take out chitosan fiber after 1h, and wash off the undecontaminated residual liquid on the fiber surface with 40mL distilled water;

[0022] (2) 0.85g of zinc acetate dihydrate and 0.51g of terephthalic acid were dissolved in 100mL of DMF respectively, and 0.85mL of triethylamine was added dropwise to the terephthalic acid solution;

[0023] (3) the chitosan fiber after processing in the step (1) is soaked alternately in the DMF solution of the zinc acetate in the step (2) and terephthalic acid each 25min, after each soaking, the chitosan fiber is soaked in DMF Soak and wash in medium for 2min. After four alternating immersion cycles in the DMF solution of zinc acetate and terephthalic acid, the obtained composite material is denoted as (MOF-5) 4 @ chitosan fiber...

Embodiment 2

[0028] (1) Dissolve 2.0g of sodium hydroxide in 38.0g of water to obtain a 5wt.% NaOH solution, then add 4.7g of sodium chloroacetate. After dissolving, immerse 0.12g of oxidized cellulose in the sodium chloroacetate solution, take out the oxidized cellulose after 1 hour, and wash off the unwashed residual liquid on the surface of the fiber with 40mL of distilled water;

[0029] (2) 0.85g of zinc acetate dihydrate and 0.51g of terephthalic acid were dissolved in 100mL of DMF respectively, and 0.85mL of triethylamine was added dropwise to the terephthalic acid solution;

[0030] (3) The oxidized cellulose treated in step (1) is alternately immersed in the DMF solution of zinc acetate and terephthalic acid in step (2) for 25 minutes each, and the oxidized cellulose is soaked in DMF after each soaking Wash for 2min. After six alternate immersion cycles in the DMF solution of zinc acetate and terephthalic acid, the obtained composite material is denoted as (MOF-5) 6 @oxidized ce...

Embodiment 3

[0035] (1) Dissolve 2.0g of sodium hydroxide in 38.0g of water to obtain a 5wt.% NaOH solution, then add 4.7g of sodium chloroacetate. After dissolving, immerse 0.12g of calcium and sodium alginate fiber in the sodium chloroacetate solution, take out the calcium and sodium alginate fiber after 1 hour, and wash off the unwashed residual liquid on the surface of the fiber with 40mL of distilled water;

[0036] (2) 0.85g of zinc acetate dihydrate and 0.51g of terephthalic acid were dissolved in 100mL of DMF respectively, and 0.85mL of triethylamine was added dropwise to the terephthalic acid solution;

[0037] (3) Alternately immerse the calcium sodium alginate salt fiber treated in step (1) in the DMF solution of zinc acetate and terephthalic acid in step (2) for 25 minutes each, after each soaking, the calcium sodium alginate Soak and wash the salt fibers in DMF for 2 min. After four alternate immersion cycles in the DMF solution of zinc acetate and terephthalic acid, four lay...

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Abstract

The invention relates to a nano-silver @MOF-5@ natural biological fiber multifunctional composite material integrating good bactericidal and hemostatic properties and chemical and biological warfare agent protective properties and a preparation method of the multifunctional composite material. The preparation method comprises the following steps: (1) impregnating natural biological fibers in a NaOH solution containing sodium chloroacetate, taking out the natural biological fibers and flushing the natural biological fibers by virtue of distilled water; (2) impregnating a material obtained in the step (1) alternately in a DMF solution of zinc acetate and a mixed solution of DMF of terephthalic acid and triethylamine in a circulating mode, and washing the material by virtue of DMF after each impregnating so as to obtain (MOF-5)n@ natural biological fibers through such alternate circulating precipitation; and (3) washing the material by virtue of a DMF solution, impregnating the material in CHCl3, and conducting vacuum drying; then impregnating the material in AgNO3 ethanol and water solution, conducting ultraviolet irradiation, flushing the material by virtue of de-ionized water and conducting vacuum drying. The multifunctional composite material disclosed by the invention is simple and easily controllable in preparation process, easily available in raw materials and low in production cost.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and specifically relates to a Ag@MOF-5@natural biological fiber multifunctional composite with excellent decontamination performance against chemical poisons at room temperature, good wound sterilization and hemostasis, wound healing promotion and moisture absorption performance Materials and their methods of preparation and uses. Background technique [0002] Biochemical warfare agent is a kind of harmful chemical or biological substance used in war for the main purpose of causing poison to humans or animals. Lethal, corrosive chemical warfare agent. Once the biochemical warfare agent is poisoned, there is no effective treatment and antidote. Therefore, the only effective way to prevent and reduce tissue damage is to remove the biochemical warfare agent on the skin surface and in the air as soon as possible. The scientific community has been committed to the development of highly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/18A61L15/28A61L15/14
Inventor 周云山孙俊梅张立娟钟玉绪
Owner BEIJING UNIV OF CHEM TECH
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