Silver ion is a positively charged cation formed by metal silver losing more than one electron, such as Ag1+, Ag2+, Ag3+, etc. Existed in the form of an aqueous solution, silver ions have oxidation, often used for sterilization and so on.

Antimicrobial agent of silver ion belongs to effect and safety to compare tall breed in numerous textile antimicrobial agent, this article is introduced in detail for you.

Antimicrobial agents are generally divided into inorganic and organic categories.

Organic antimicrobial agent is mainly chemical antimicrobial agent, through chemical reaction to destroy the cell membrane, fast sterilization, good effect, low cost, widely used. But the safety is poor, the effect is not long, easy to appear resistant bacteria.

Inorganic antibacterial agent, safe, long - acting, high - temperature resistance. No tolerant bacteria will appear. Metal ion is a very important part of inorganic antibacterial agents, especially silver antibacterial agents have been widely used in recent years.

The antibacterial function component of silver antibacterial agent is silver ion. As an antimicrobial agent, silver ion has the advantages of safety, broad spectrum, long-term efficacy, tolerance to bacteria and antibacterial effect. It is an ideal antimicrobial agent. The disadvantage is that the silver ion is unstable and the processing cost is high. Silver ion intolerant bacteria appear, that is, bacteria have no resistance to silver ion. This is due to the unique bactericidal mechanism of silver ions.

Common antimicrobial agents kill bacteria mainly by destroying cell membranes. As a result, once-battered bacteria evolve and mutate, adapting to increasingly toxic chemicals. There are even almost "invulnerable", no agents can deal with the so-called "superbugs". These "superbugs" used to be some of the more docile bacteria. Just like the alchemy furnace of Lao Jun, the Monkey King is refined into fiery eyes and golden eyes. It is also "refined" into a super pathogen that can decompose drugs, and its own toxicity is full, enough to kill people, such as coliform O-157, resistant staphylococcus (MRSA), etc.

The inhibition (killing) mechanism of silver ion in general, there are mainly two universities said. First, bacterial cell division reproduction hindrance said. Silver ions are adsorbed as cations and enter the cell membrane of bacteria, and the intracellular enzyme reaction, causing protein metabolism disorders, resulting in metabolic disorders, cell division (proliferation) function stop. Bacteria run out of energy and lose vitality in the process of eliminating foreign components in the body. Second, silver ions are activated to produce reactive oxygen species (OH-), which oxidize and decompose bacteria and viruses. Silver ion is one of the most active metal ions. In the presence of light and water (the air contains a certain amount of water), silver ion will be activated to produce reactive oxygen species (OH-). This safety is equivalent to the natural ions of reactive oxygen species (OH-), does have several times more than ultraviolet and ozone oxidation decomposition ability, bacteria and viruses have the effect of killing decomposition. In recent years, Japanese Sharp, Panasonic and other home appliances products have used this sterilization deodorization technology. Recently, some researchers in Japan have identified silver ions that produce reactive oxygen species (OH-), even in dark water.

Both of the above two theories have been supported by modern scientific tests such as electron microscopy. Either way, however, it is clear that the silver ion inhibits (kills) bacteria and viruses in a way that makes it impossible for them to develop resistant bacteria.