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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: J Pharm Sci. 2011 Mar 15;100(8):3345–3356. doi: 10.1002/jps.22529

Figure 1.

Figure 1

Pareto chart depicting the standardized effect of formulation variables and their interactions on SLN size; horizontal axis shows the t ratio of the variables. Bars surpassing the two vertical lines indicate values reaching statistical significance (α = 0.05). X1, BSA concentration in the aqueous phase; X2, pH of the aqueous phase; and X3, Softisan 100 concentration in the organic phase.