Tell about 4 types of antibacterial agents

Antibacterial agents can be generally divided into four categories: inorganic, organic, natural and polymeric antibacterial agents. Let's take a look at it in detail:
Inorganic antibacterial agent
The inorganic antibacterial agent is formed by ion exchange, adsorption, alloying or compounding by using an antibacterial metal supported on a certain carrier. At present, titanium antibacterial agents and silver antibacterial agents are widely used. Titanium antibacterial agents are mainly TiO2 materials which can be photocatalytically activated; silver antibacterial agents, which are currently used most in China. Variety.
2. Organic antibacterial agent
At present, organic antibacterial agents in foreign markets are mostly organic nitrogen-containing ionic compounds, and their structures are similar to antistatic agents such as organic iodides, organic chlorides or their complexes, and amino acid metal salts.
3. Natural antibacterial agent
Natural antibacterial agents are refined and refined from animals and plants. Currently, ultra-fine chitosan micro-powder and chitin have been developed.
4. Polymer antibacterial agent
The antibacterial polymer material is obtained by introducing an antibacterial functional group, and can be classified into a quaternary ammonium salt type, a quaternary phosphonium salt type, a phosphonium salt type, a pyridine type, and an organometallic copolymer according to different functional groups, and the antibacterial functional group can pass through a functional group monomer. Introduction by homopolymerization or copolymerization can also be introduced by grafting.

Performance comparison of four antibacterial agents

Antibacterial agent type

advantage

Disadvantage

Natural antibacterial agent

High antibacterial efficiency, non-toxic, non-irritating, safe to use

Poor processing performance, unstable at high temperature, easy to decompose

Organic antibacterial agent

Fast sterilization, easy processing, strong antibacterial activity against bacteria and mold

Poor heat resistance, easy to produce drug resistance, easy to decompose at high temperature, short service life, poor safety

Inorganic antibacterial agent

Good heat resistance, broad spectrum of antibacterial properties, long-lasting antibacterial properties, low toxicity, low drug resistance, low price, abundant sources

Easy to precipitate, easy to make the product discolored

Polymer antibacterial agent

Broad spectrum, high efficiency, low toxicity

Higher cost

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