The meaning of this Hadith that the prophet takes his saliva on the forefinger then he put it on the soil and wipe on the wound place while saying the above Hadith that is shows the Prophet’s miracle, which is evidence of healing by using soil and saliva....
The coating can be very thin, down to a molecule-thick layer, meaning that little antimicrobial will be used, and so the coating may be considered eco-friendly. However, the active agent does need to be immobilized on the surface and present active antimicrobial groups. The biocidal mechanism...