Embedded Microbubbles for Acoustic Manipulation of Single Cells and Microfluidic Applications
- Journal Article
Rights / licenseCreative Commons Attribution 4.0 International
Acoustically excited microstructures have demon-PDMS Nun rical Analysis strated significant potential for small-scale biomedical applications by overcoming major microfluidic limitations. Recently, the application of oscillating microbubbles has demonstrated their superiority over acoustically excited solid structures due to their enhanced acoustic streaming at low input power. However, their limited temporal stability hinders their direct applicability for industrial or clinical purposes. Here, we introduce the embedded microbubble, a novel acoustofluidic design based on the combination of solid structures (poly(dimethylsiloxane)) and microbubbles (air-filled cavity) to combine the benefits of both approaches while minimizing their drawbacks. We investigate the influence of various design parameters and geometrical features through numerical simulations and experimentally evaluate their manipulation capabilities. Finally, we demonstrate the capabilities of our design for microfluidic applications by investigating its mixing performance as well as through the controlled rotational manipulation of individual HeLa cells. Show more
Journal / seriesAnalytical Chemistry
Pages / Article No.
Organisational unit03307 - Dual, Jürg (emeritus) / Dual, Jürg (emeritus)
03627 - Nelson, Bradley J. / Nelson, Bradley J.
03543 - Kutay, Ulrike / Kutay, Ulrike
09700 - Ahmed, Daniel / Ahmed, Daniel
02205 - FIRST-Lab / FIRST Center for Micro- and Nanoscience
166110 - Mechanical Basis for the Convergent Evolution of Sensory Hairs in Animals and Plants (SNF)
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