“…Thus, the search for new types of antimicrobial treatments, such as photodynamic therapy [4,5], disinfection with UV light [6], the combined use of several known antimicrobial agents [7], or finding new compounds with antifungal activity, was considered a priority. From the last category, a series of natural compounds, polyphenolic derivatives, chitosan, tannins, and essential oils were studied [8][9][10][11][12], and new antibiotics [11,13] or nanomaterials, such as graphene oxide, metallic oxides, and metallic particles [8,[14][15][16], were synthesized. All these newly discovered antimicrobial agents must be packaged under different formulations or delivery platforms in order to be used in as many fields as possible.…”