Propylene Glycol Caprylate-Based Nanoemulsion Formulation of Plumbagin: Development and Characterization of Anticancer Activity

Figure 2

Pseudoternary phase diagram (a) of Capryol 90, Labrasol/Kolliphor RH 40 (1 : 1), and water at 25°C. The grey area indicates o/w nanoemulsion domain. (b) Shows the samples with different w/w ratio of surfactant–cosurfactant to oil (S–CoS/O) ranging from opalescent coarse emulsions to optically translucent nanoemulsions.

(a)

(b)