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Preparation method and application of nano-silver antibacterial liquid

A technology of antibacterial liquid and nano-silver, which is applied in nanotechnology, nanotechnology, nano-medicine, etc., can solve the problems of nano-silver concentration decrease, complex synthesis process, and difficulty in preservation, so as to reduce water evaporation, reduce allergy risk, and good antibacterial effect of effect

Pending Publication Date: 2021-11-19
湖南伟方生命科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nano-silver is an extremely active ion, which is easy to chemically react with other substances. At the same time, nano-silver is easy to decompose when exposed to light, so it is difficult to preserve and industrial production is very difficult.
At present, the synthesis process of traditional nano-silver solution is complex and easy to coagulate. The concentration of nano-silver in the solution drops significantly during the placement process, and the antibacterial effect is poor.

Method used

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  • Preparation method and application of nano-silver antibacterial liquid
  • Preparation method and application of nano-silver antibacterial liquid
  • Preparation method and application of nano-silver antibacterial liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of S1 raw materials:

[0031] Preparation of solution A: fully dissolve 90 g of silver nitrate in 5 kg of pure water, and then adjust the pH value to 8 with ammonium hydroxide to prepare solution A.

[0032] Prepare the same carrier solution: add 40g of propylene glycol, 50g of glycerin, 500g of pure water, 7g of poly-4-vinylpyridine into the reaction kettle and mix the mixed solution B evenly, then slowly add the graphite phase nitriding under the stirring speed of 5000rpm Carbon 25g, and added at 35min, then purified for 24h, and finally filtered to obtain the same carrier solution.

[0033] S2 high speed emulsification:

[0034] Add 300g of sodium citrate, 50g of potassium sodium tartrate, 600g of glucose, and 300kg of pure water into the high-speed stirring emulsifier, and mix evenly to obtain mixed solution C; and heat to boil under nitrogen protection to obtain boiling mixed solution C. Then rotating speed is 1500rpm under the mechanical agitation, s...

Embodiment 2

[0038] Preparation of S1 raw materials:

[0039] Preparation of solution A: fully dissolve 100 g of silver nitrate in 5 kg of pure water, and then adjust the pH value to 7 with ammonium hydroxide to prepare solution A.

[0040]Prepare the same carrier solution: add 50g of glycerol, 30g of butanediol, 500g of pure water, 10g of poly-4-vinylpyridine into the reaction kettle and mix the mixed solution B evenly, then slowly add the graphite phase under stirring at a speed of 4000rpm Add 40g of carbon nitride, and finish adding in 40min, then purify for 24h, and finally filter to obtain the same carrier solution.

[0041] S2 high speed emulsification:

[0042] Add 200g of pentasodium diethylenetriaminepentaacetic acid, 100g of potassium sodium tartrate, 600g of ascorbic acid, and 300kg of pure water into the high-speed stirring emulsifier, and mix well to obtain a mixed solution C; and heat it to boil under the protection of nitrogen to obtain a boiling mixed solution c. Then ro...

Embodiment 3

[0046] Preparation of S1 raw materials:

[0047] Preparation of solution A: fully dissolve 110 g of silver nitrate in 5 kg of pure water, and then adjust the pH value to 8 with ammonium hydroxide to prepare solution A.

[0048] Preparation of the same carrier solution: Add 80g of propylene glycol, 12g of glycerin, 500g of pure water, 8g of poly-4-vinylpyridine into the reaction kettle and mix the mixed solution B evenly, then slowly add the graphite phase nitriding under the stirring speed of 4000rpm 45g of carbon was added at 40 minutes, then purified for 24 hours, and finally filtered to obtain the same carrier solution.

[0049] S2 high speed emulsification:

[0050] Add 50g of sodium citrate, 280g of pentasodium diethylenetriaminepentaacetic acid, 300g of glucose, 400g of ascorbic acid, and 300kg of pure water into the high-speed stirring emulsifier, and mix well to obtain a mixed solution C; The mixed solution C. Then rotating speed is 2000rpm under mechanical stirring...

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Abstract

The invention discloses a preparation method of nano-silver antibacterial liquid. Solutions containing silver ions and isotopic carriers are respectively prepared firstly, then a stabilizer and a reducing agent are fully dissolved in pure water, the solutions containing silver ions and isotopic carriers and a dispersing agent are put into the mixture, and the nano-silver antibacterial liquid is prepared. The isotopic carriers carry the nano-silver ions to form a single-layer six-membered ring network structure so that the silver ions can grow into nano microcrystals in situ on nodes of the single-layer six-membered ring network structure, the nano-silver ions can be effectively dispersed, the situation that the solubility of the nano-silver ions is reduced due to agglomeration of the nano-silver ions is prevented, and therefore the sterilizing effect of the antibacterial liquid is enhanced. The invention further discloses application of the nano-silver antibacterial liquid. The nano-silver antibacterial liquid is applied to psoriasis in cooperation with a radix sophorae flavescentis extract, a cortex dictamni extract and allantoin, stimulation of the nano-silver antibacterial liquid to skin can be effectively released, and the antibacterial effect is improved.

Description

technical field [0001] The invention relates to the field of sterilization and disinfection, in particular to a preparation method and application of nano-silver antibacterial liquid. Background technique [0002] Nano-silver has a bactericidal effect and is often used for sterilization and disinfection in daily life. It is a new generation of antibacterial agent in the 21st century. Its mechanism is that the silver ions precipitated from nano-silver are opposite to the charge on the surface of pathogenic bacteria. , On the contrary, the force between the electricity will make the nano-silver and the cell membrane of the pathogenic bacteria tightly combined, and then the nano-silver enters the cell through the cell wall, and chemically reacts with the sulfhydryl group to prevent the synthesis of the enzyme, thereby inactivating the pathogenic bacteria and dying. After the bacteria die, the nano-silver is released, and the cycle continues to sterilize. The unique antibacteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/00B82Y5/00B82Y40/00A61K33/38A61K36/75A61K9/08A61P17/00A61P31/10A61P31/02A61P31/04A61K31/4166A61K33/00
CPCB22F9/24B82Y5/00B82Y40/00A61K33/38A61K33/00A61K31/4166A61K36/489A61K36/75A61K9/08A61K9/0014A61P17/00A61P31/10A61P31/02A61P31/04A61K2300/00Y02A50/30
Inventor 周雄志王高雄罗宝林
Owner 湖南伟方生命科技有限公司
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