R. Sagayaraj

Interestingly, all nanoparticles exhibit antimicrobial activity. Silver nanoparticles are used to treat people from COVID at public events. The common property of all nanoparticles is the size effect. At a certain size of nanoparticles, a new property appears. A common property for all nanoparticles is their large specific surface area. When comparing nanoparticles with the same specific surface area and different structures, quantum effects come to the fore, which also depend on size. For example, the vibration frequency of your nanoparticles can coincide in different ways with the frequency of silver nanoparticles and bacterial cells. There is no such correlation between the parameters you noted earlier.

Hello, YM.

Thanks, I accept your answer. You know that the metal of silver has a wonderful antibacterial activity than the metal of cerium. However, today's young researchers are studying cerium topped metals with antibacterial activity. However, it is a toxic metal. Is there any potential significance in the cerium matrix?

>"Silver nanoparticles are used to treat people from COVID at public events"

Sorry, it is an anecdotal example of using silver nano-particles by some asian dictators. It proved economically beneficial to the organizers, but I never seen any double-blind study on that, combined with study of other materials, or particle sizes.