FIG. 2.

(Color online) Size-exclusion techniques on PFCnD diameters. (a) Size distribution of PFCnDs with a PFH core with no size separation technique applied. Average diameter of these droplets was 217.9 ± 52.2 nm, 10¹⁰ nanodroplets/ml. (b) Size distribution of PFCnDs with a PFH core after passage through a syringe fitted with a 450 nm mesh filter. Average diameter of these droplets 197.5 ± 41.1 nm, 10¹⁰ nanodroplets/ml. (c) PFCnDs passed through a 450 nm filter yielded nanodroplets with the smallest diameters, compared to centrifugation techniques and unmodified (control) nanodroplet samples. n = 6.