Impact of solidification on micromeritic properties and dissolution rate of self-nanoemulsifying delivery system loaded with docosahexaenoic acid.

Development of self-nanoemulsifying drug delivery systems (SNEDDS) of docosahexaenoic acid (DHA) is reported with the aim to achieve enhanced dissolution rate. The optimized composition of liquid SNEDDS (L-SNEDDS) formulation was Labrafil M1944 CS, 47% v/v Tween 80, 27% v/v Transcutol P, and 0.1% v/v DHA. L-SNEDDS were solidified using Syloid XDP 3150 as solid porous carrier. The droplet size, polydispersity index, zeta potential, percentage drug loading, and cloud point for L-SNEDDS were found to be 43.51 ± 1.36 nm, 0.186 ± 0.053, -19.20 ± 1.21 mV, 93.23 ± 1.71, and 88.60 ± 2.54 °C, respectively. Similarly, for solid SNEDDS (S-SNEDDS) the above parameters were found to be  57.32 ± 1.87 nm,  0.261 ± 0.043, -16.60 ± 2.18 mV, 91.23 ± 1.88, and 89.50 ± 1.18 °C, respectively. The formulations (L-SNEDDS, S-SNEDDS powder, and S-SNEDDS tablet) showed significant (