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A kind of preparation method of micro-nano zinc capable of killing bacteria and inactivating viruses

A technology of inactivation and virus, applied in the field of nano antibacterial, can solve the problems of high price, non-metabolism, easy discoloration, etc., and achieve the effect of low cost, not easy to reunite, and easy to operate

Active Publication Date: 2022-05-20
南京凯创协同纳米技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bactericidal effect of nano-silver and nano-zinc is 99.99% within 24 hours, but the defects of nano-silver are also obvious: it is easy to change color, cannot be metabolized in the human body, and is expensive, etc., which restricts its application in textiles, especially for women and children. antibacterial products

Method used

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  • A kind of preparation method of micro-nano zinc capable of killing bacteria and inactivating viruses
  • A kind of preparation method of micro-nano zinc capable of killing bacteria and inactivating viruses
  • A kind of preparation method of micro-nano zinc capable of killing bacteria and inactivating viruses

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 The flow chart of the steps shown, a method for preparing micro-nano zinc capable of killing bacteria and inactivating viruses, comprises the following steps:

[0039] Step 1.1: Dissolve 50 mL of nonylphenol polyoxyethylene ether and 30 mL of n-octanol in 120 mL of cyclohexane, and stir with 20 mL of isoamyl alcohol and 200 mL of deionized water to prepare a WPO reverse microemulsion system;

[0040] Step 1.2: Add 1000mL of a mixture of zinc citrate and zinc nitrate with a concentration of 450g / L and 1000mL of hydrazine hydrate solution into 3600mL of WPO inverse microemulsion, mix them, and react at 65°C and 4600rpm for 6.5h to obtain the particle size Zinc particle solution at 10nm-600nm;

[0041] Step 2.1: Transfer the prepared zinc particle solution to the next reaction kettle, stir at 60°C and 4600rpm, and at the same time introduce high-speed air flow to form cavitation phenomenon;

[0042] Step 2.2: The reaction time is 5 hours to prepare a mic...

Embodiment 2

[0047] The micro-nano zinc solution prepared in Example 1 was configured into a micro-nano zinc aqueous solution with a concentration of 1000 mg / kg, and then diluted successively to concentrations of: 800 mg / kg, 500 mg / kg, 400 mg / kg, and 300 mg / kg. Micro-nano zinc aqueous solution, the micro-nano zinc aqueous solution with a concentration of 1000 mg / kg, 800 mg / kg, 500 mg / kg, 400 mg / kg, and 300 mg / kg is marked as group 5, group 4, group 3, group 2, group 1. Determine the bactericidal rate of the micro-nano zinc aqueous solution according to the "Disinfection Technical Specifications" suspension quantitative method, the test bacteria are Escherichia coli, Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa, and the test time is 20s, 30s, 60s respectively ; Test result is as shown in table 1, and the micronano zinc aqueous solution of group 1 to group 5 different concentrations is to escherichia coli, Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa effe...

Embodiment 3

[0050] The micro-nano zinc solution prepared in Example 1 was configured into a micro-nano zinc aqueous solution with a concentration of 1000 mg / kg, and then diluted successively to concentrations of: 800 mg / kg, 500 mg / kg, 400 mg / kg, and 300 mg / kg. Micro-nano zinc aqueous solution, the micro-nano zinc aqueous solution with a concentration of 1000 mg / kg, 800 mg / kg, 500 mg / kg, 400 mg / kg, and 300 mg / kg is marked as group 5, group 4, group 3, group 2, group 1. Determine the virus inactivation rate of the micro-nano zinc aqueous solution according to the "Disinfection Technical Specifications". The tested viruses are poliovirus, influenza A virus H1N1, enterovirus, and avian influenza virus H5N1. The test time is 10s, 20s, 30s; the test results are shown in Table 2.

[0051]

[0052] Dilute the commercially available 3% hydrogen peroxide disinfectant, and dilute in turn into hydrogen peroxide aqueous solutions with concentrations of 1000mg / kg, 800mg / kg, 500mg / kg, 400 mg / kg, and ...

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Abstract

The present invention relates to the antimicrobial field of micro-nano particles, and specifically provides a method for preparing micro-nano zinc that can kill bacteria and inactivate viruses, including the following steps: Step 1: use the microemulsion method to prepare zinc with a particle size of 10nm-600nm in proportion Zinc particles; step 2: transfer the prepared nano-zinc particles to the next reaction kettle, and use cavitation to obtain a micro-nano zinc solution; the present invention utilizes a microemulsion method to prepare a micro-nano zinc particle solution, and the preparation device has a simple structure, and the utensils Easy to obtain and low cost, easy to operate when configuring the solution, can realize the controllable zinc particles, and has the advantages of not being easy to agglomerate; the prepared micro-nano zinc particle solution is non-toxic, harmless, tasteless, and non-irritating, and can replace most disinfection The product is conducive to environmental protection, improves the standard of healthy living, and achieves a truly lasting, effective, stable and efficient, environmentally friendly and odorless sterilization and disinfection effect.

Description

technical field [0001] The invention relates to the field of nano antibacterial, in particular to a method for preparing micro-nano zinc capable of killing bacteria and inactivating viruses. Background technique [0002] In 1869, Zn was first identified as an essential trace element for the human body, and the human body contains 2-3g of zinc. Zinc is a recognized biosafety material. Since there is no zinc storage system in the human body, zinc needs to be supplemented daily. Zinc deficiency in the human body can lead to many diseases. [0003] The antibacterial effect of zinc has been widely recognized. There are many studies on nano-zinc oxide abroad, but under the same conditions, the antibacterial effect of nano-zinc oxide is less than 1 / 10 of that of nano-zinc. [0004] In our research, we found that nano-zinc is not as good as nano-silver in the practice of rapid sterilization. According to the data, under the same test conditions, nano-silver can achieve 90% bacteri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01P1/00
CPCA01N59/16Y02A50/30
Inventor 钱鹏吴玄峰黄世伟查进陈海亮
Owner 南京凯创协同纳米技术有限公司
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