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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Pharm Sci. 2015 Sep 28;104(12):4056–4064. doi: 10.1002/jps.24654

Figure 3.

Figure 3

Mean diffusion coefficients (μm2/s) of labeled 3M at the silicone oil-water interface as a function of the polysorbate 20:unlabeled 3M molar ratio. The open symbols correspond to formulations with a bulk unlabeled 3M concentration of 1.0 mg/mL. The closed symbols correspond to formulations with a bulk unlabeled 3M concentration of 7.6 mg/mL. The solid black line represents the mean diffusion coefficient of interfacially-adsorbed labeled 3M molecules in the absence of polysorbate 20 and without addition of any unlabeled 3M.