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What are the disadvantages of common silver ion antibacterial agents

What are the disadvantages of common silver ion antibacterial agents

  • Categories:Industry News
  • Author:
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  • Time of issue:2022-06-21
  • Views:626

(Summary description)The silver ion antibacterial agent mainly adopts the physical adsorption ion exchange method, which is attached to the porous material, and uses the antibacterial ability of metal ions to achieve the purpose of long-term bacteriostasis through the slow release effect. Depending on the carrier, different types of silver-based antibacterial agents have been developed, such as: zeolite-supported silver, activated carbon-supported silver, copper-phosphate-supported silver, calcium-phosphate-supported silver, silica-gel-supported silver, zirconium-phosphate-supported silver, hydroxyapatite-supported silver silver etc.

What are the disadvantages of common silver ion antibacterial agents

(Summary description)The silver ion antibacterial agent mainly adopts the physical adsorption ion exchange method, which is attached to the porous material, and uses the antibacterial ability of metal ions to achieve the purpose of long-term bacteriostasis through the slow release effect. Depending on the carrier, different types of silver-based antibacterial agents have been developed, such as: zeolite-supported silver, activated carbon-supported silver, copper-phosphate-supported silver, calcium-phosphate-supported silver, silica-gel-supported silver, zirconium-phosphate-supported silver, hydroxyapatite-supported silver silver etc.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-06-21
  • Views:626
Information

The silver ion antibacterial agent mainly adopts the physical adsorption ion exchange method, which is attached to the porous material, and uses the antibacterial ability of metal ions to achieve the purpose of long-term bacteriostasis through the slow release effect. Depending on the carrier, different types of silver-based antibacterial agents have been developed, such as: zeolite-supported silver, activated carbon-supported silver, copper-phosphate-supported silver, calcium-phosphate-supported silver, silica-gel-supported silver, zirconium-phosphate-supported silver, hydroxyapatite-supported silver silver etc.

Main varieties:

Silver zeolite, silver activated carbon, silver silica gel, silver glass beads, silver hydroxyapatite-based antibacterial agent, titanium phosphate, silver/zinc composite.

advantage:

Good heat resistance (>600℃), broad antibacterial spectrum, long effective antibacterial period, low toxicity, no drug resistance and high safety.

shortcoming:

Silver-based antibacterial agents are easy to change color, difficult to manufacture, and complicated to use in materials.

  1. The free silver ions in such materials are easily reduced to elemental silver and turn gray or brown when exposed to sunlight or heated to a certain temperature, which affects the color of the product;

  2. Due to the role of inorganic carriers, silver-loaded antibacterial agents will seriously affect the light transmittance of products, especially film plastic products;

  3. Due to the preciousness of silver raw materials, the cost of silver-based antibacterial agents has remained high;

  4. Poor anti-fungal and mildew effect.

Because silver is a heavy metal, it is not safe enough for the human body, and the antibacterial effect is not lasting. In this way, the research and development of new antibacterial materials that are long-lasting, safe, green and efficient is still an important issue in the field of antibacterial materials. Currently, in the research direction of long-lasting antibacterial materials, Hefei Vigon Materials Technology Graphene is antibacterial, and graphene antibacterial is treated with high-tech nanotechnology, which makes it have a wider and more efficient antibacterial and sterilization function, and through the slow release effect, it improves the long-term effect and harmlessness of antibacterial.

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