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Antibiotic material of nano silver by using ricepaper pith as carrier and preparation method

A nano-silver antibacterial and nano-silver technology, applied in botany equipment and methods, animal repellants, biocides, etc., can solve the problems of weak physical adsorption force, complicated preparation process, difficult elution, etc., and achieve reduction Stimulation of the human body, simplification of the preparation process, and the effect of improving adhesion

Inactive Publication Date: 2005-03-30
何素梅 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is to utilize the physical adsorption of the micropores of the rush to the nano-silver colloid to adsorb the nano-silver to the cellulose surface of the rush. This physical adsorption is extremely weak. In the subsequent washing process, if washing Too many times will wash out a large amount of nano-silver, resulting in waste; if the number of washes is too small, it will be difficult to wash off the impurities generated by chemical reactions, resulting in the final product being irritating to the human body
In addition, the preparation process of this product is more complicated, so that the production cost is higher

Method used

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  • Antibiotic material of nano silver by using ricepaper pith as carrier and preparation method
  • Antibiotic material of nano silver by using ricepaper pith as carrier and preparation method
  • Antibiotic material of nano silver by using ricepaper pith as carrier and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of nano-silver antibacterial material with Tongcao as carrier.

[0035] (1) Wash the grass with distilled water, dry it by air flow and crush it into particles with a particle diameter range of 0.3mm-2mm;

[0036] (2) Add the above 5kg Tongcao granules to an aqueous solution containing 2kg silver nitrate and 20kg, and stir for 0.5 hours;

[0037] (3) Take out the Tongcao granules impregnated with silver nitrate solution, and immerse them in 30kg of 95% medical ethanol for 1 minute;

[0038] (4) Take the Tongcao granules described in (3) out of medical ethanol, immerse them in 20 kg of 100 g sodium borohydride aqueous solution, and stir for 0.5 minutes;

[0039] (5) Take out the Tongcao granules described in (4) from the aqueous solution of sodium borohydride, wash with 20 kg of distilled water for 10 minutes, add 5 g of hydrogen peroxide, stir for 0.5 hours, and then wash with distilled water for 10 minutes;

[0040] (6) Dry the Tongcao particles obtained in (5)...

Embodiment 2

[0042] Preparation of nano-silver antibacterial material with Tongcao as carrier.

[0043] (1) Wash the grass with distilled water, dry it by air flow and crush it into particles with a particle diameter range of 0.3mm-2mm;

[0044] (2) Add the above 5kg Tongcao granules to an aqueous solution containing 3kg silver nitrate and 20kg, and stir for 1.5 hours;

[0045] (3) Take out the above-mentioned Tongcao granules impregnated with silver nitrate solution and immerse them in 30 kg of 95% medical ethanol for a duration of 3 minutes;

[0046] (4) Take the Tongcao granules described in (3) out of medical ethanol, immerse them in 20 kg of 500 g sodium borohydride aqueous solution, and stir for 3 minutes;

[0047] (5) Take out the Tongcao granules described in (4) from the aqueous solution of sodium borohydride, wash with 20 kg of distilled water for 10 minutes, add 10 g of hydrogen peroxide, stir for 0.5 hours, and then wash with distilled water;

[0048] (6) The tongcao granules obtai...

Embodiment 3

[0050] Preparation of nano-silver antibacterial material with Tongcao as carrier.

[0051] (1) Wash the grass with distilled water, dry it by air flow and crush it into particles with a particle diameter range of 0.3mm-2mm;

[0052] (2) Add the above 5kg Tongcao granules to an aqueous solution containing 4kg silver nitrate and 20kg, and stir for 3 hours;

[0053] (3) Take out the above-mentioned Tongcao granules impregnated with silver nitrate solution, and immerse them in 30kg of 95% medical ethanol for a duration of 6 minutes;

[0054] (4) Take the Tongcao granules described in (3) out of medical ethanol, immerse them in 20 kg of an aqueous solution containing 1 kg of sodium citrate, and stir for 5 minutes;

[0055] (5) Take out the Tongcao granules described in (4) from the sodium citrate aqueous solution, wash with 20 kg of distilled water for 10 minutes, add 25 hydrogen peroxide, stir for 0.5 hours, and then wash with distilled water;

[0056] (6) The tongcao granules obtaine...

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Abstract

An antibacterial nano-Ag material using Tetrapanax papyriferus as carrier is composed of the particles of Tetrapanax papyriferus and the Ag nanoparticles attached to the surface of Tetrapanax papyriferus fibres or in its millipores.

Description

Technical field [0001] The present invention relates to an antibacterial material, in particular to a nano silver antibacterial material that takes Tongcao as a carrier; [0002] The invention also relates to a preparation method of the nano-silver antibacterial material with the herbaceous herb as a carrier. technical background [0003] Nano-silver particles belong to nano-precious metal particles, which refer to metallic silver particles with a particle size between 1 and 100 nm, and are also called ultra-fine precious metal particles. The excellent performance of nano-silver materials depends on its unique microstructure. Nano-silver particles have significant surface effects, quantum size effects, and macro-quantum tunneling effects, and thus display biological, thermal, optical, electrical, magnetic, and magnetic properties that are different from conventional materials. The characteristics of catalysis and sensitivity enable it to be used in the fi...

Claims

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Application Information

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IPC IPC(8): A01N25/08A01N59/16
Inventor 曾钫李娜何素梅何锦波
Owner 何素梅
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