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Updated: May 31, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
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Lipid aggregate formation at an oscillating bubble surface: a simulation study.

Joost H J van Opheusden1, Jaap Molenaar

  • 1Biometris, Department of Mathematical and Statistical Methods, Wageningen University, Wageningen, The Netherlands.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|July 7, 2011
PubMed
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Lipid monolayers on oscillating bubbles form persistent micellar structures during contraction, influencing bubble behavior in acoustic imaging. This simulation bridges vast time scales for lipid dynamics research.

Area of Science:

  • Biophysics
  • Computational Chemistry
  • Materials Science

Background:

  • Micrometer-sized bubbles with lipid monolayers act as contrast agents in acoustic imaging.
  • Bubble oscillation in high-frequency sound fields (microsecond period) significantly impacts lipid coating dynamics.
  • A nine-decade time scale gap exists between molecular motion (femtoseconds) and bubble oscillation.

Purpose of the Study:

  • To investigate lipid monolayer behavior on oscillating bubble surfaces.
  • To develop a coarse-grained model bridging femtosecond and microsecond time scales for lipid dynamics.
  • To understand the influence of bubble oscillation on lipid coating structure and stability.

Main Methods:

  • Molecular dynamics simulation using a highly coarse-grained model.

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Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces
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Last Updated: May 31, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces
08:05

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

  • Simulations focused on lipid dynamics with picosecond time scales.
  • Investigation of temperature and frequency dependence on lipid behavior.

    • Main Results:

    • Amphiphilic lipid monolayers fold upon bubble contraction, forming micellar aggregates at the air-water interface.
    • Some micellar structures persist through bubble re-expansion and multiple oscillation cycles.
    • Observed micellar structures may contribute to anisotropic bubble behavior under oscillation.

    Conclusions:

    • Coarse-grained molecular dynamics effectively simulates lipid behavior on oscillating bubbles.
    • Persistent micellar structures are a key outcome of bubble contraction and oscillation.
    • Findings offer insights into acoustic contrast agent behavior and lipid dynamics under dynamic conditions.