The Role of Acoustic Parameters in Droplet Vaporization of Perfluoropentane Nanodroplets for In Vivo Applications

High Resolution Image Download MS PowerPoint Slide Nanodroplets have emerged as promising contrast agents due to their ability to undergo acoustic droplet vaporization (ADV), enabling size expansion for diverse biological applications such as selective contrast enhancement and localized drug delivery. While ADV has been widely utilized, the influence of acoustic parameters on its dynamics remains poorly understood, despite their potential to modulate ADV efficiency and uniformity, particularly with focused ultrasound (FUS). In this study, we developed a well-defined synthetic and characterization protocol for anionic perfluoropentane (PFP) nanodroplets and systematically investigated the effects of the pulse repetition frequency (PRF) and cycle number on ADV using acoustic signal detection and B-mode ultrasound imaging. In addition, we developed a modified acoustic-thermal model and simu…