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Yttrium oxide-ferric oxide composite nano antibacterial material

A technology of ferric oxide and antibacterial materials, applied in the fields of chemicals for biological control, animal repellants, botanical equipment and methods, etc., to achieve enhanced antibacterial performance, excellent antibacterial performance, and low cost

Active Publication Date: 2017-05-31
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, many antibacterial agents based on nanomaterials have been developed. Although some achievements have been made in the field of antibacterial nanomaterials, there is still a need to develop more effective and lower-cost antibacterial agents.

Method used

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  • Yttrium oxide-ferric oxide composite nano antibacterial material
  • Yttrium oxide-ferric oxide composite nano antibacterial material
  • Yttrium oxide-ferric oxide composite nano antibacterial material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation and application of a yttrium oxide-ferric oxide composite nano antibacterial material of the present invention includes the following steps in sequence:

[0039] ⑴Add 8mmol FeSO 4 ·7H 2 O was dissolved in 15 mL of deionized water to prepare solution I;

[0040] ⑵ Put 1.6mmol of NaClO 3 Dissolve in 16mL of deionized water to prepare solution II;

[0041] (3) Add solution II to solution I drop by drop, stir while adding, to prepare solution III;

[0042] ⑷ Transfer solution III to the autoclave and react at 180°C for 12 hours;

[0043] ⑸After the solution is cooled, collect the precipitate and wash it with deionized water and absolute ethanol three times, and then dry it in an oven at 60°C for 10 hours to obtain nano-Fe 2 O 3 ;

[0044] ⑹ Weigh 1.552gY(NO 3 ) 3 ·6H 2 O, 0.5 g PVP and weighing 45 mg of the product of step ⑸ into the system containing 14 mL of water and 66 mL of ethanol and stirring uniformly, then transfer the solution to the autoclave, and react at 1...

Embodiment 2

[0055] The preparation and application of a yttrium oxide-ferric oxide composite nano antibacterial material of the present invention includes the following steps in sequence:

[0056] ⑴Add 8mmol FeSO 4 ·7H 2 O was dissolved in 15 mL of deionized water to prepare solution I;

[0057] ⑵The 1.6mmol NaClO 3 Dissolve in 16mL of deionized water to prepare solution II;

[0058] ⑶ Add solution II to solution I drop by drop, stir while adding, to prepare solution III;

[0059] ⑷ Transfer solution III to the autoclave and react at 180°C for 12 hours;

[0060] ⑸After the solution is cooled, collect the precipitate and wash it with deionized water and absolute ethanol three times, and then dry it in an oven at 60°C for 10 hours to obtain nano-Fe 2 O 3 ;

[0061] ⑹ Weigh 1.552gY(NO 3 ) 3 ·6H 2 O, 0.5 g PVP and weighing 45 mg of the product of step ⑸ into the system containing 14 mL of water and 66 mL of ethanol and stirring uniformly, then transfer the solution to the autoclave, and react at 180°C f...

Embodiment 3

[0072] The preparation and application of a yttrium oxide-ferric oxide composite nano antibacterial material of the present invention includes the following steps in sequence:

[0073] ⑴Add 8mmol FeSO 4 ·7H 2 O was dissolved in 15 mL of deionized water to prepare solution I;

[0074] ⑵ Put 1.6mmol of NaClO 3 Dissolve in 16mL of deionized water to prepare solution II;

[0075] ⑶ Add solution II to solution I drop by drop, stir while adding, to prepare solution III;

[0076] ⑷ Transfer solution III to the autoclave and react at 180°C for 12 hours;

[0077] ⑸After the solution is cooled, collect the precipitate and wash it with deionized water and absolute ethanol three times, and then dry it in an oven at 60°C for 10 hours to obtain nano-Fe 2 O 3 ;

[0078] ⑹ Weigh 1.552gY(NO 3 ) 3 ·6H 2 O, 0.5 g PVP and weighing 45 mg of the product of step ⑸ into the system containing 14 mL of water and 66 mL of ethanol and stirring uniformly, then transfer the solution to the autoclave, and react at 180...

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Abstract

The invention relates to an yttrium oxide-ferric oxide composite nano antibacterial material. The preparation method comprises the following steps: uniformly dispersing nano ferric oxide obtained by hydrothermal synthesis into a yttrium oxide synthetic system, carrying out reaction in a high-pressure reaction kettle, carrying out centrifugal separation to obtain a precipitate, and drying over night to obtain a yttrium oxide-ferric oxide composite; sterilizing the nano material by anhydrous ethanol, centrifugating, removing the supernate, adding water, and sufficiently mixing uniformly; adding the yttrium oxide-ferric oxide composite material with unequal concentrations into test tubes with a certain concentration of Escherichia coli and staphylococci, and respectively carrying out shake culture in the light and dark for some time; and analyzing the inhibition efficiency of the nano material for Gram-negative bacteria and Gram-positive bacteria by a plate counting process. The yttrium oxide-ferric oxide composite material has favorable inhibition effects on both Gram-negative bacteria and Gram-positive bacteria, and especially has very high inhibition efficiency for Gram-negative bacteria. The yttrium oxide-ferric oxide composite material is environment-friendly, and can not cause the problem of bacterial drug resistance and the like.

Description

Technical field [0001] The invention belongs to the technical field of preparation of antibacterial materials, and specifically relates to a yttrium oxide-ferric oxide composite nano antibacterial material. Background technique [0002] Bacteria are widely found in air, water, dust, human and animal excreta. The abuse of antibiotics has led to the emergence of drug-resistant bacteria and the emergence of "super bacteria", which are increasingly threatening human health. In recent years, as the public's awareness of environmental protection and health has increased, the demand for alternatives to antibiotics has increased. Studies have confirmed that antibacterial agents are an effective way to control infectious diseases caused by pathogenic bacteria. Therefore, it is very important to design and synthesize low-cost and efficient antibacterial agents. Some nanomaterials have good bactericidal and antibacterial functions, and will not cause bacterial resistance. Therefore, nano...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01P1/00
CPCA01N59/16A01N2300/00
Inventor 王宏归周芝峰温芳芳谈晶张娅张子岚胡春
Owner YANGZHOU UNIV
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