In the Dubrava Ceska recipe, insoluble minerals containing silver and zinc are used, which have a pronounced bactericidal effect and are safe for humans. Almost zero solubility excludes the release of metal compounds from mineral particles, making them completely safe for health.
Bactericidal minerals are crushed to a size of several nanometers to increase activity and improve distribution in the coating:
The activity of such minerals increases tenfold due to the developed surface and increased surface energy, which, as is known, is characteristic of nanoparticles (nanocrystals).
Finely ground (nano-sized) minerals are found in paints, fabrics and polymers, imparting bactericidal properties to them.
In addition, minerals as sources of trace elements are part of dietary supplements and vitamin complexes.
Minerals containing transition d-metals are also used as micronutrient fertilizers for growing crops.
Bactericidal minerals crushed to a nanoscale state exhibit high bioprotective activity.
These components are completely of natural origin and do not emit any chemicals at all during operation, in contrast to chemical antiseptics, which are intensely released into the air and water, especially at elevated temperatures.