Fig. 2

Physical properties of (a) control NLC and (b) Origanum vulgare essential oil-loaded nanostructured lipid carrier (OVE-NLC): (ai and bi) particle size, (aii and bii) zeta potential distributions profile, (aiii and biii) scanning electron microscope (SEM) micrograph, and (c) FTIR spectra of OVE-NLC and control NLC.