Secondary Bjerknes forces can rupture the binding of targeted microbubbles. We have shown before that this effect can be used to quantify the adhesion strength between bubble and target surface [1]. At lower pressures however, microbubbles were observed to snap back to their original position within 100 μs after ultrasound application. In this study the mechanism of this restoring force was investigated in more detail using simultaneous top and side view high speed imaging [2]. Moreover, some results on the process of microbubble detachment (peeling versus uniform rupture) are presented.

acoustic radiation force, bubble deformation, microbubble detachment, secondary Bjerknes force, targeted microbubbles,
2012 IEEE International Ultrasonics Symposium, IUS 2012
Department of Cardio-Thoracic Surgery

Kokhuis, T.J.A, Naaijkens, B, Juffermans, L.J.M, Kamp, O, Versluis, M, & de Jong, N. (2012). Secondary Bjerknes forces deform targeted microbubbles. Presented at the 2012 IEEE International Ultrasonics Symposium, IUS 2012. doi:10.1109/ULTSYM.2012.0167