For 2NapFF-Na solutions prepared at a concentration of 40 mg/mL, additional stirring effects samples were created -denoted as "recovery" experiments. 9 mL of 2NapFF solution at a concentration of 40 mg/mL were prepared using the quantities in Section 1.3. Solutions were made in 50 mL Falcon tubes, stirred with the same (25 x 8 mm) stirrer bars, and wrapped in Parafilm. Two different stirring methods were used on each sample over a seven-day period to establish if any sample preparation history could affect the data collected. Samples were either stirred at 400 rpm or 1000 rpm for 3 days, and then both left to stand undisturbed for the remaining four of the seven-day period. Viscosity measurements were performed every day for seven days, with day 1 representing the day following the creation of the samples.