Nano magnesium oxide is a material with broad-spectrum antibacterial activity and has the advantages of low toxicity, high heat resistance, and environmental friendliness. In recent years, research on the application of nano magnesium oxide in antibacterial materials has made great progress.
Antibacterial mechanism of nano magnesium oxide
The antibacterial mechanisms of nano magnesium oxide mainly include the following two types:
① Reactive oxygen oxidative damage: Nano-magnesium oxide can produce reactive oxygen species in water, such as superoxide, hydrogen peroxide, hydroxyl free radicals, etc. These reactive oxygen species can directly attack the cell membrane, DNA, protein, etc. of microorganisms, leading to the death of microorganisms.
② Mechanical damage by adsorption: Nano-magnesium oxide has a large specific surface area and can adsorb the cell membrane, cell wall, etc. of microorganisms, causing the microorganisms to lose their cell structure integrity and eventually die.
Development Trend of Nano-MgO Antibacterial Materials
With the deepening of research, nano-magnesium oxide antibacterial materials will have further development in the following aspects:
Improve antibacterial activity: By regulating the morphology, particle size, surface structure, etc. of nano magnesium oxide, its antibacterial activity can be improved.
Broadening the antibacterial spectrum: By doping with other elements or compounding with other materials, the antibacterial spectrum of nano magnesium oxide can be broadened.
Improved durability: By improving the stability of nano magnesium oxide, its durability can be improved.
Application cases of nano magnesium oxide antibacterial materials
1. Medical and health field: Nano-magnesium oxide antibacterial materials have been used to prepare medical devices, dressings, surgical gowns, etc. For example, nano magnesium oxide can be used to prepare antibacterial masks, which can effectively prevent the wearer from inhaling bacteria and viruses in the air.
2. Food packaging field: Nano-magnesium oxide antibacterial materials have been used to prepare food packaging materials. For example, nano magnesium oxide can be used to prepare antibacterial plastic wrap, which can extend the shelf life of food.
3. Textile field: Nano-magnesium oxide antibacterial materials have been used to prepare antibacterial clothing, bedding, etc. For example, nano magnesium oxide can be used to prepare antibacterial underwear, which can effectively prevent bacterial growth.
4. Building materials field: Nano-magnesium oxide antibacterial materials have been used to prepare antibacterial floors, walls, etc. For example, nano magnesium oxide can be used to prepare antibacterial floors, which can effectively prevent the growth of bacteria on the floor.
Nano magnesium oxide antibacterial materials have broad application prospects and will be used in more fields as research continues to deepen.