Fig. 2. Pseudoternary phase diagram of the polysorbate surfactant (Tween80/neem oil/water) system, showing the selected nano-emulsion formulations with the ratios of N-PolyS1 (30 : 48 : 22) and N-PolyS2 (27 : 40 : 33). L=Isotropic. MP=Multiphase.
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