Xanthan gum-silver nanoparticle composite material and preparation method thereof

A composite material and a technology for xanthan gum, applied in the field of xanthan gum-silver nanocomposite materials and their preparation, can solve problems such as poor particle size uniformity of nano-silver, and achieve remarkable antibacterial effect, highly uniform size, and biocompatibility. Good results

Active Publication Date: 2015-04-22
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the uniformity of nano-silver particles prepared by traditional methods is relatively poor, and nano-silver particles usually need to be loaded on a carrier to improve the dispersion of nano-silver particles, and then be used to prepare biomaterials

Method used

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  • Xanthan gum-silver nanoparticle composite material and preparation method thereof
  • Xanthan gum-silver nanoparticle composite material and preparation method thereof
  • Xanthan gum-silver nanoparticle composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The xanthan gum-silver nano-composite material of this embodiment is prepared by mixing xanthan gum solution and nano-silver sol, and the mixed solution is placed on a carrier and dried; xanthan gum and silver elements in the mixed solution The mass ratio is 4:9.

[0047] The preparation method of present embodiment xanthan gum-silver nanocomposite material, specific operation steps are as follows:

[0048] (1) Preparation raw materials:

[0049] A: Preparation of xanthan gum solution:

[0050]Weigh 5 mg of xanthan gum powder and dissolve it in 50 mL of deionized water. After magnetically stirring for 24 hours, centrifuge the solution for 2 hours, then place it in a water bath at 60°C for 6 hours, and cool to room temperature to obtain a 0.1 g / L xanthan gum solution. The 0.1g / L xanthan gum solution was diluted with deionized water to be 0.02g / L xanthan gum solution.

[0051] B: Preparation of nano-silver sol:

[0052] 1) 10mg HAuCl 4 Dissolve in 98mL deionized wate...

Embodiment 2

[0061] The xanthan gum-silver nano-composite material of this embodiment is prepared by mixing xanthan gum solution and nano-silver sol, and the mixed solution is placed on a carrier and dried; xanthan gum and silver elements in the mixed solution The mass ratio is 2:9.

[0062] The preparation method of present embodiment xanthan gum-silver nanocomposite material, specific operation steps are as follows:

[0063] (1) Preparation raw materials:

[0064] A: Preparation of xanthan gum solution:

[0065] Weigh 5 mg of xanthan gum powder and dissolve it in 50 mL of deionized water. After magnetically stirring for 24 hours, centrifuge the solution for 2 hours, then place it in a water bath at 60°C for 6 hours, and cool to room temperature to obtain a 0.1 g / L xanthan gum solution. The 0.1g / L xanthan gum solution was diluted with deionized water to be 0.02g / L xanthan gum solution.

[0066] B: Preparation of nano-silver sol:

[0067] 1) 10mg HAuCl 4 Dissolve in 98mL deionized wat...

Embodiment 3

[0074] The xanthan gum-silver nano-composite material of this embodiment is prepared by mixing xanthan gum solution and nano-silver sol, and the mixed solution is placed on a carrier and dried; xanthan gum and silver elements in the mixed solution The mass ratio is 1:9.

[0075] The preparation method of present embodiment xanthan gum-silver nanocomposite material, specific operation steps are as follows:

[0076] (1) Preparation raw materials:

[0077] A: Preparation of xanthan gum solution:

[0078] Weigh 5 mg of xanthan gum powder and dissolve it in 50 mL of deionized water. After magnetically stirring for 24 hours, centrifuge the solution for 2 hours, then place it in a water bath at 60°C for 6 hours, and cool to room temperature to obtain a 0.1 g / L xanthan gum solution. The 0.1g / L xanthan gum solution was diluted with deionized water to be 0.02g / L xanthan gum solution.

[0079] B: Preparation of nano-silver sol:

[0080] 1) 10mg HAuCl 4 Dissolve in 98mL deionized wat...

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Abstract

The invention discloses a xanthan gum-silver nanoparticle composite material and a preparation method of the xanthan gum-silver nanoparticle composite material, and belongs to the technical field of nanometer materials. The composite material contains xanthan gum and nano-silver, the xanthan gum with high biocompatibility serves as a carrier, the dispersibility of the nano-silver is improved, and the antibacterial property and the biocompatibility of the composite material are improved. According to the preparation method of the xanthan gum-silver nanoparticle composite material, a silver colloid is prepared in a gold colloid system, silver covers gold particles for growth, a nano-silver colloid is prepared, the size and the height of the nano-silver particles are uniform, the nano-silver particles can be uniformly dispersed in a water solution for a long time, the nano-silver particles prepared through the method and generally-prepared nano-silver represent the same property, the nano-silver particles are mixed with the xanthan gum and then uniformly distributed on the xanthan gum of a reticular structure, the dispersibility is good, and the antibacterial property can be improved.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, and in particular relates to a xanthan gum-silver nanocomposite material and a preparation method thereof. Background technique [0002] Molecular self-assembly is a process in which molecules are connected through intermolecular non-covalent interaction forces under certain conditions to form thermodynamically stable, structurally stable, and organized aggregates. Molecular self-assembly technology is a process in which molecules form an ordered topological structure on the surface of a solid substrate. It is a "small to large" material assembly method and an important method for preparing nanomaterials. Compared with the microscale, the nanoscale topological structure is more similar to the natural environment of cell growth in the body. Therefore, the research on nanotopological structure used in biomaterials is increasing rapidly, and is forming a hot field and direction. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B82Y40/00B22F1/00B82Y30/00
Inventor 韩晓宇刘波朱纪春李银丽高丽珍张海磊李梦梦
Owner HENAN UNIVERSITY
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