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Alumina nano channel film, and preparation method and application method thereof

An alumina nanometer and application method technology, applied in the direction of material electrochemical variables, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve problems such as the inability to meet the response and detection requirements of various metal ions, and achieve great potential value, preparation Simple process and excellent performance

Active Publication Date: 2015-06-17
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The ion channels on the cell membrane of organisms play an important role in the normal life activities of organisms. Its special structure and function have attracted the attention of researchers at home and abroad. Inspired by biological ion channels, the unique properties of biological ion channels have been copied to In artificial nanodevices, artificial nanochannels with different shapes and functions have been prepared, and the artificial nanochannels have shown a certain application space in the fields of ion-specific response and detection, but these can only be used for single metal ions. Specific response and detection cannot meet the response and detection requirements of various metal ions in complex solution systems in practical applications

Method used

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  • Alumina nano channel film, and preparation method and application method thereof
  • Alumina nano channel film, and preparation method and application method thereof
  • Alumina nano channel film, and preparation method and application method thereof

Examples

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Embodiment 1

[0061] figure 1 It is a schematic diagram of the implementation process of the preparation method of the aluminum oxide nanochannel film in the embodiment of the present invention, figure 2 It is a schematic diagram of the preparation method of the aluminum oxide nanochannel thin film of the embodiment of the present invention; as figure 1 , figure 2 As shown, the method includes:

[0062] Step 101: performing anodic oxidation on the aluminum sheet for the first time to form an oxide film on the surface of the aluminum sheet;

[0063] In the above solution, before step 101, the method further includes:

[0064] Ultrasonic cleaning of the aluminum sheet;

[0065] Polishing the aluminum sheet after ultrasonic cleaning;

[0066] High-purity water is selected to clean the polished aluminum sheet.

[0067] Wherein, the ultrasonic cleaning is: the aluminum sheet is ultrasonically cleaned in detergent, acetone, and absolute ethanol in sequence;

[0068] The polishing is: pol...

Embodiment 2

[0101] The embodiment of the present invention also provides an application method of the aluminum oxide nanochannel film described in the first embodiment. Before applying the aluminum oxide nanochannel film described in the first embodiment, the aluminum oxide nanochannel film needs to be modified , that is, the single-stranded deoxyribonucleic acid containing cytosine and thymine is modified on the aluminum oxide nanochannel film, and then the aluminum oxide nanochannel film containing cytosine and thymine single-stranded deoxyribonucleic acid is used to modify the mercury ion Hg2+ , silver ion Ag + for specific identification.

[0102] First, modify the single-stranded deoxyribonucleic acid containing cytosine and thymine on the aluminum oxide nanochannel film described in Example 1, such as image 3 As shown, the steps include:

[0103] Step 301: immerse the aluminum oxide nanochannel film in boiling hydrogen peroxide for 30-60 minutes, then wash and dry;

[0104] Here,...

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Abstract

The invention discloses an application method for an alumina nano channel film. The method comprises the following steps: determining a first current corresponding to the alumina nano channel film modifying single-stranded deoxyribonucleic acid containing cytimidine and thymine by using a picoammeter method; soaking the alumina nano channel film modifying the single-stranded deoxyribonucleic acid containing cytimidine and thymine in a solution containing mercury ions Hg2+ and / or silver ions Ag+ for preset time, and then taking the film out of the solution; determining a second current corresponding to the alumina nano channel film modifying the single-stranded deoxyribonucleic acid containing cytimidine and thymine by using the picoammeter method; and according to the first current and the second current, determining whether the alumina nano channel film modifying the single-stranded deoxyribonucleic acid containing cytimidine and thymine can specifically identify the mercury ions and the silver ions. The invention also discloses the alumina nano channel film and a preparation method thereof.

Description

technical field [0001] The invention relates to a specific recognition analysis technology, in particular to an aluminum oxide nanochannel thin film, a preparation method and an application method thereof. Background technique [0002] The ion channels on the cell membrane of organisms play an important role in the normal life activities of organisms. Its special structure and function have attracted the attention of researchers at home and abroad. Inspired by biological ion channels, the unique properties of biological ion channels have been copied to In artificial nanodevices, artificial nanochannels with different shapes and functions have been prepared, and the artificial nanochannels have shown a certain application space in the fields of ion-specific response and detection, but these can only be used for single metal ions. Specific response and detection cannot meet the response and detection requirements of various metal ions in complex solution systems in practical a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26C25D11/12
Inventor 范霞王慧敏
Owner BEIHANG UNIV
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