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Acoustic parameters of the PEG-PCL stabilized PFP nanodroplets suspended in PBS.
| Sample | Sound speed at 2.5 MHz, m/s | ||
|---|---|---|---|
| PEG-PCL micelles | PFP/PEG-PCL nanodroplets, RT 7-min time point | PFP/PEG-PCL nanodroplets 37 °C 7-min time point | |
| 1501 | 1468 | 1458 | |
| Sound frequency, MHz | Attenuation, dB/cm | ||
| 0.3 | <0.25 | 0.6 | 1.82 |
| 0.6 | <0.25 | <0.25 | 0.81 |
| 1.0 | <0.25 | <0.25 | 0.6 |
| 3.0 | <0.25 | 0.43 | 3.7 |
