Table 1.
Physical characteristics of precursor PFH emulsions, SF MBs (filling gas: SF6), OS6:4 MBs (filling gas: O2/SF6 = 6/4), OS8:24 MBs (filling gas: O2/SF6 = 8/2), OS9:1 MBs (filling gas: O2/SF6 = 9/1), and OX MBs (filling gas: O2). All microbubble solutions were reconstituted from the lyophilized powders of precursor PFH emulsion solutions at the same amount
| Size [µm] | PDI | Concentration [× 108 MBs mL−1] | |
|---|---|---|---|
| PFH emulsion | 2.05 ± 0.15 | 0.20 ± 0.08 | 7.52 ± 0.33 |
| SF MBs | 1.59 ± 0.20 | 0.23 ± 0.05 | 2.29 ± 0.20 |
| OS6:4 MBs | 1.63 ± 0.25 | 0.27 ± 0.06 | 2.11 ± 0.23 |
| OS8:2 MBs | 1.75 ± 0.44 | 0.30 ± 0.05 | 1.96 ± 0.22 |
| OS9:1 MBs | 2.05 ± 0.38 | 0.34 ± 0.07 | 1.12 ± 0.15 |
| OX MBs | 2.12 ± 0.24 | 0.35 ± 0.06 | 0.73 ± 0.10 |