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Irradiated biological material aqueous solution as well as preparation method and use method thereof

A technology for biological materials and aqueous solutions, applied in irradiation, medical science, bandages, etc., can solve problems such as changes in the physical and chemical properties of aqueous solutions of biological materials, affecting the biological activity of biological materials, and destroying molecular bonds

Pending Publication Date: 2022-04-26
深圳钧兴生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although irradiation sterilization has the advantages of strong penetrating power, no residue, and convenient operation, irradiation will also destroy the molecular bonds of biomaterials, resulting in recombination, chain scission or crosslinking of biomaterial molecules, resulting in apparent Changes in the physical and chemical properties of biological material aqueous solutions may even affect their efficacy
Especially when the biological material molecules in the aqueous solution are irradiated to produce active ingredients to cross-link, it is easy to combine with water molecules to form insoluble matter or hydrogel structure, which will significantly reduce the fluidity of the biological material aqueous solution, resulting in the biological material aqueous solution after irradiation. Cannot be used normally in fluid form
In addition, the irradiation process may be accompanied by an increase in temperature, which is likely to directly affect the biological activity of the biomaterial

Method used

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  • Irradiated biological material aqueous solution as well as preparation method and use method thereof
  • Irradiated biological material aqueous solution as well as preparation method and use method thereof
  • Irradiated biological material aqueous solution as well as preparation method and use method thereof

Examples

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Effect test

Embodiment 1

[0026] A method for preparing and using an irradiated biological material aqueous solution, wherein the following steps are sequentially included:

[0027] (1) preparation of homogeneous chitosan / acrylic acid aqueous solution, the concentration of chitosan is 20wt.%, and the concentration of acrylic acid is 0.001wt.%.

[0028] (2) Add specific ions / molecules to Tris-H in the biological material aqueous solution obtained in step (1) + , CO 3 2- -citric acid and borax-SO 4 2- , where Tris concentration is 0.1M, H + The concentration is 0.01M, CO 3 2- The concentration is 1M, the concentration of citric acid is 0.001M, the concentration of borax is 0.5M, SO 4 2- The concentration is 20M;

[0029] (3) adjusting the pH value of the biological material aqueous solution obtained in step (2) to 6 by 5M triethylamine or 1M acetic acid;

[0030] (4) adding lysine and glycerol to the biological material aqueous solution obtained in step (3), wherein the mass ratio of lysine to ...

Embodiment 2

[0034] A method for preparing and using an irradiated biological material aqueous solution, wherein the following steps are sequentially included:

[0035] (1) preparing a homogeneous collagen aqueous solution, the collagen concentration is 1wt.%;

[0036] (2) Add specific ions / molecules to H in the biological material aqueous solution obtained in step (1) 2 PO 4 - -HCO 3 - 、Ac - - citric acid, where H 2 PO 4 - Concentration 0.001M, HCO 3 - Concentration is 1M, Ac - The concentration is 20M, and the concentration of citric acid is 5M;

[0037] (3) adjusting the pH value of the biological material aqueous solution obtained in step (2) to 7.2 by 1M sodium hydroxide or 0.1M hydrochloric acid;

[0038] (4) adding ethylene glycol and Tween to the biological material aqueous solution obtained in step (3), wherein the mass ratio of ethylene glycol to the biological material aqueous solution is 1:10, and the mass ratio of Tween to the biological material aqueous solution i...

Embodiment 3

[0042] A method for preparing and using an irradiated biological material aqueous solution, wherein the following steps are sequentially included:

[0043] (1) prepare homogeneous gelatin / polyvinyl alcohol aqueous solution, the concentration of gelatin is 0.1wt.%, and the concentration of polyvinyl alcohol is 5wt.%.

[0044] (2) Add specific ion / molecule pair barbiturate-Na in step (1) gained biological material aqueous solution + -Cl - , where the barbiturate concentration is 5M, Na + Concentration is 1M, Cl - The concentration is 2M;

[0045] (3) adjusting the pH value of the biological material aqueous solution obtained in step (2) to 8 by 1M potassium hydroxide or 5M oxalic acid;

[0046] (4) Adding propylene glycol and Span to the biological material aqueous solution obtained in step (3), wherein the mass ratio of propylene glycol to the biological material aqueous solution is 1:1000, and the mass ratio of Span to the biological material aqueous solution is 1:1;

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Abstract

The invention relates to the field of biological materials, in particular to an irradiated biological material aqueous solution as well as a preparation method and a use method thereof. In order to avoid the heterogeneity or agglomeration phenomenon caused by irradiation of a biological material aqueous solution in conventional operation, the microenvironment of biological material molecules in the aqueous solution is optimized from the aspects of enhancing the ionic environment of the aqueous solution, regulating and controlling the pH value to balance the surface electrical property of the biological material molecules, adding protective molecules and the like. The aqueous solution of the biological material keeps a homogeneous flow state, and can be directly used clinically in the form of a homogeneous aqueous solution, directly contacted with skin or injected into a human body.

Description

technical field [0001] The present invention relates to an aqueous solution of irradiated biological material, its preparation method and use method. Background technique [0002] As one of the sterilization methods for aqueous solutions of biological materials, irradiation sterilization is to kill microorganisms by directly or indirectly destroying the ribonucleic acid, protein and enzymes of microorganisms to play a role in disinfection and sterilization. Although irradiation sterilization has the advantages of strong penetrating power, no residue, and convenient operation, irradiation will also destroy the molecular bonds of biomaterials, resulting in recombination, chain scission or crosslinking of biomaterial molecules, resulting in apparent Changes in the physical and chemical properties of biological material aqueous solutions may even affect their efficacy. Especially when the biological material molecules in the aqueous solution are irradiated to produce active ing...

Claims

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Application Information

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IPC IPC(8): A61L26/00A61L2/08
CPCA61L26/0033A61L26/0038A61L26/0042A61L26/0047A61L26/0023A61L26/0019A61L26/0014A61L26/0004A61L26/0066A61L26/0061A61L2/0035A61L2/007A61L2/0041A61L2400/06A61L2300/232A61L2300/236A61L2300/252A61L2202/21
Inventor 杜明春
Owner 深圳钧兴生物科技有限公司
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