Fig. 13
The antioxidant activity (%) of various concentrations (µg/mL) of TS, Lys, HA-Lys conjugate and VCM-HNLCs according to a DPPH radical scavenging assay in comparison to ascorbic acid (positive control). Data in the graph are presented as mean ± SD (n = 3). (TS: Tocopherol succinate, Lys: L-Lysine, HA-Lys: hyaluronic acid-lysine conjugate, VCM-HNLCs: vancomycin-loaded hybrid nanostructured lipid carriers, DPPH: 2.2-diphenyl-1-picrylhydrazyl)