Table 4.

The droplet size (volume distribution) of the selected formulations at 0 day and after 3 months storage (mean ± SD, n =3)

Formulation	time	F1	F2	F3	F4	F5	F6	F7
Droplet size (nm)	0 day	62.81±5.71	53.10±4.30	43.33±3.13	45.43±4.95	49.37±5.97	39.57±3.10	42.61±3.92
Droplet size (nm)	3 months storage	67.35±4.96	55.73±5.02	42.12±2.97	46.86±5.31	47.84±4.69	40.62±2.64	41.38±4.57