Graphene antimicrobial composition as well as preparation method and application thereof

An antibacterial composition, graphene technology, applied in the direction of antibacterial drugs, carbon compounds, topical antibacterial agents, etc., can solve the problems such as the inability of nano silver and graphene to be closely combined, affecting the service life and antibacterial effect, and inability to evenly distribute the surface. , to achieve excellent adsorption and loading effect, excellent hydrophobicity and lipophilicity, and meet the effect of antibacterial duration

Active Publication Date: 2018-04-24
XIAMEN YUANCHUANGLI TECH SERVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, researchers have found that graphene has certain antibacterial properties in previous research centers. For example, in "American Chemical Society-Nano" (ACS-Nano, 2010, Vol. 4, p. Graphene paper has certain antibacterial properties, and then a series of graphene / silver nanocomposite antibacterial materials with good antibacterial properties appeared. The specific parts of the surface cannot be evenly distributed on the surface, thereby affecting the antibacterial effect; at the same time, nano-silver and graphene cannot be tightly combined, especially when the content of nano-silver particles increases, it is easy to agglomerate and fall off during use, thus affecting Service life and antibacterial effect
[0004] In previous studies, it was found that graphene has certain antibacterial properties, and then a series of graphene / silver nanocomposite antibacterial materials with good antibacterial properties appeared. The research found that the preparation process of such materials has certain complexity or The use effect has certain limitations

Method used

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  • Graphene antimicrobial composition as well as preparation method and application thereof

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Embodiment 1

[0043] The present embodiment provides the preparation method of graphene antibacterial composition, comprises the steps:

[0044] Step 1. Accurately weigh 10g of modified porous graphene oxide and 80% antibacterial plant extract with a mass ratio of 20%, wherein the antibacterial plant extract is Camellia oleifera seed oil configured according to the mass percentage example 1:1 Composition with aloe vera oil, set aside.

[0045] Step 2: Add surfactant to deionized water and stir evenly, then add camellia oleifera seed oil and aloe vera oil composition sequentially, heat up to 60-90°C, continue stirring for 5-25min to obtain a mixed solution. in:

[0046] The amount of deionized water ranges from 100% to 600% of the amount of modified porous graphene oxide.

[0047] In this step, the surfactant is sodium lauryl sulfate, sodium dioctyl succinate sulfonate, sodium dodecylsulfonate, sodium dodecylbenzenesulfonate, sodium deoxycholate, sodium cholate One or more components, pre...

Embodiment 2

[0055] Accurately weigh 35g of modified porous graphene oxide, 25% of Camellia oleifera seed oil 25g, 5% of 5% lanthanum stearate, and obtain the antibacterial plant extract loaded on the surface according to the preparation method of Example 1 The graphene antibacterial composition of the composition of organic rare earth salt.

Embodiment 3

[0057] Accurately weigh 21g of modified porous graphene oxide with a mass ratio of 42%, 27.5g of 55% camellia seed oil and tea polyphenol composition, and 1.5g of 3% cerium laurate. The phenol composition is configured according to the mass percentage example 1:1, and the graphene antibacterial composition of the composition of the antibacterial plant extract and the organic rare earth salt is obtained on the surface by the preparation method of Example 1.

[0058] In the present embodiment and embodiment 3, although the surface of the modified porous graphene oxide has a large number of active hydrophilic functional groups such as carboxyl groups, hydroxyl groups and epoxy bonds, the modified porous graphene oxide has strong hydrophilicity, However, its dispersibility has not been significantly improved, and the rare earth ions themselves have excellent chemical activity, and the chemical activity of the rare earth elements in the organic rare earth salt added in this embodime...

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Abstract

The invention relates to a graphene antimicrobial composition. With modified porous graphene which has interpenetrated pore structures as a carrier, the graphene antimicrobial composition is an antimicrobial material which is prepared by loading an antimicrobial plant extract in pores of the modified porous graphene; and the graphene antimicrobial composition consists of the following components in percentage by mass: 20-80% of the modified porous graphene and 20-80% of the antimicrobial plant extract, and preferably, the graphene antimicrobial composition further consists of organic rare-earth salt; and the graphene antimicrobial composition consists of the following components in percentage by mass: 20-70% of the modified porous graphene, 20-80% of the antimicrobial plant extract and 1-5% of the organic rare-earth salt. The antimicrobial plant extract is any one or any combinations of camellia oleosa seed oil, tea polyphenol and aloe oil; and the organic rare-earth salt is any one orany combinations of lanthanium stearate, cerium stearate, lanthanium laurate and cerium laurate.

Description

technical field [0001] The invention relates to the technical field of antibacterial functions, in particular to a graphene antibacterial composition and its preparation method and application. Background technique [0002] Graphene refers to a single layer of carbon atoms tightly packed into a two-dimensional honeycomb structure, which is the basic unit for constructing other dimensional carbon materials (such as zero-dimensional fullerenes, one-dimensional carbon nanotubes, and three-dimensional graphite). Single-layer graphene has a large specific surface area, excellent electrical and thermal conductivity and low thermal expansion coefficient. In particular, its high conductivity, large specific surface properties and its monolayer two-dimensional nanoscale structural properties can be used as electrode materials in bipolar plates of fuel cells, supercapacitors and lithium-ion batteries. [0003] In addition, researchers have found that graphene has certain antibacteria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K33/00A61K36/00A61K45/00A61K47/69A61K36/82A61K31/353A61K36/896A61K36/886A61P31/04A61P31/02A61L15/46A61L15/08C01B32/194
CPCA61K36/896A61K45/00A61L15/08A61L15/46A61K31/353A61K33/00A61K36/00A61K36/82A61K36/886A61L2300/602A61L2300/10A61K2300/00Y02E60/50
Inventor 周丕严
Owner XIAMEN YUANCHUANGLI TECH SERVICE CO LTD
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