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SEC results illustrated as absorbance at 280 nm as a function of elution volume of 20 mg/mL unloaded lipid nanoparticles (NPs) (black), 0.75 mg/mL aspartic protease (light gray), and a mixture of both previous samples (dark gray) in which the concentration of lipid NPs and enzyme was the same as the separated components. Embedded graph shows a magnification of the 16–24 mL region.
