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Preparation method of anodic-electrodeposition chitosan gel on basis of coordination action

A technology of chitosan gel and electrodeposition, which is applied in the direction of electrolysis process, electrolysis components, electrolysis organic production, etc., can solve the problems that the preparation method of anodic electrodeposition chitosan gel has not been seen, and achieve good biocompatibility , mild preparation conditions and simple operation

Inactive Publication Date: 2015-04-29
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation method of this anodic electrodeposition chitosan gel using coordination has no literature and patent reports.

Method used

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  • Preparation method of anodic-electrodeposition chitosan gel on basis of coordination action
  • Preparation method of anodic-electrodeposition chitosan gel on basis of coordination action
  • Preparation method of anodic-electrodeposition chitosan gel on basis of coordination action

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method based on the anodic electrodeposition chitosan gel of coordination, it comprises following specific steps:

[0026] 1) Preparation of chitosan solution: adding chitosan powder into 0.25% aqueous acetic acid solution by volume to prepare a chitosan solution with a mass concentration of 1.0g / 100mL, magnetic stirring at 30°C for 24 hours until the chitosan Fully dissolve, then adjust the pH value of the chitosan solution with 2.0M aqueous sodium acetate solution to be 5.4, use a Buchner funnel to carry out vacuum filtration for 2 times, fully remove undissolved chitosan particles, and obtain a chitosan solution;

[0027]2) Preparation of anode and cathode conductive metal materials: select metal material copper that can form metal ion coordination with chitosan, process it into metal copper sheets, as anode conductive metal materials, and then use sandpaper to clean the anode conductive metal materials Grind the edges and uneven parts, then ult...

Embodiment 2

[0032] A kind of preparation method utilizing coordination in situ anodic electrodeposition chitosan gel, it comprises following concrete steps:

[0033] 1) Preparation of chitosan solution: adding chitosan powder into 1.0% aqueous acetic acid solution by volume to prepare a chitosan solution with a mass concentration of 1.5g / 100mL, magnetic stirring at 10°C for 8 hours until the chitosan Fully dissolve, then adjust the pH value of the chitosan solution with 1.0M aqueous sodium acetate solution to be 5.5, use a Buchner funnel to carry out vacuum filtration 3 times, fully remove undissolved chitosan particles, and obtain a chitosan solution;

[0034] 2) Preparation of anode and cathode conductive metal materials: select metal material copper that can form metal ion coordination with chitosan, and process it into metal copper wire as an anode conductive metal material, and then use sandpaper to clean the anode conductive metal materials Grind the edges and uneven parts, then ult...

Embodiment 3

[0039] A kind of preparation method utilizing coordination in situ anodic electrodeposition chitosan gel, it comprises following concrete steps:

[0040] 1) Preparation of chitosan solution: adding chitosan powder into 2.0% aqueous acetic acid solution by volume to prepare a chitosan solution with a mass concentration of 2.0g / 100mL, magnetic stirring at 25°C for 20 hours until the chitosan Fully dissolve, and then adjust the pH value of the chitosan solution with 1.5M aqueous sodium acetate solution to be 5.8, adopt a Buchner funnel to carry out vacuum filtration 4 times, fully remove undissolved chitosan particles, and obtain a chitosan solution;

[0041] 2) Preparation of anode and cathode conductive metal materials: select the metal material zinc that can form metal ion coordination with chitosan, process it into metal zinc sheets, and use sandpaper as the anode conductive metal material Grind the edges and uneven parts, then ultrasonically clean them in acetone, absolute e...

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Abstract

The invention provides a preparation method of anodic-electrodeposition chitosan gel on the basis of coordination action. The preparation method is characterized by comprising the steps of: generating metal ions capable of forming the coordination action by utilizing electro-chemical reaction generated by an anodic conductive metal material in the electrodeposition process, and then generating the coordination action with chitosan so as to form the chitosan gel on the anode by electrodeposition. The preparation method provided by the invention has the advantages that the operation is simple, the time and space controllability and selectivity as well as the repeatability are good, and the green and environmental-friendly effects are achieved; the instrument and the equipment are simple, the cost is low, the prepared hydrogel material has no bubbles, and the appearance is flat and smooth and the like; and the anodic-electrodeposition chitosan gel has very wide application in the fields of surface modification of biological sensors, biological chips and biological metal materials, surface patterning of metal materials, anodic electrodeposition and assembly of biological small-molecular substances and nano materials and the like.

Description

technical field [0001] The invention belongs to the fields of polymer materials, coordination chemistry and electrochemistry, and biological materials, and in particular relates to a preparation method of anodic electrodeposited chitosan gel based on coordination. Background technique [0002] As the most important derivative of chitin, chitosan is obtained by partial deacetylation of chitin, and has many excellent properties, such as biocompatibility, biodegradability, non-toxicity, excellent film-forming Sex, pH responsiveness, etc., widely used in biomedicine, food processing, cosmetics, metal chelating agents and other fields. When used as an adsorbent for metal ions, dyes, proteins, etc., the adsorption capacity of chitosan is better than that of chitin. The molecular chain of chitosan contains a large number of amino and hydroxyl groups. 2+ , Fe 2+ , Cu 2+ , Zn 2+ ,Co 2+ Such metal ions undergo coordination to form a chitosan-metal ion coordination compound to ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/04C25B3/25
Inventor 王艺峰耿增华郭雪成郭萌萌王霞
Owner WUHAN UNIV OF TECH
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