Fig. 6. Overview of the influence of tested compounds after 2 h of contact time on physicochemical parameters of the bacterial surface.
Figure shows (a) surface polarity, (b) Lewis acid, and (c) Lewis base of S. aureus (yellow) and C. acnes (orange) before and after compounds treatment. SLS: Sodium Laureth Sulfate ; CARR: Carrageenan ; GUAR: Guar Hydroxypropyltrimonium Chloride ; SH: Sodium Hyaluronate ; RHM: Rhamnolipids ; VF: Vitreoscilla filiformis extract. Lewis acids/bases are expressed in arbitrary units related to the difference of adhesion percent to solvent couples, respectively, ethyl acetate/decane and chloroform/hexadecane. Hydrophobicity is expressed in mean percent of adhesion to decane and hexadecane.