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Optimizing the quality of acoustophoretic separation by the in-flow mobility-ratio method

Baasch, Thierry LU ; Edthofer, Alexander LU ; Péroux, Linda ; Rengbrandt, Olivia ; Silversand, Lovisa ; Lenshof, Andreas LU orcid and Laurell, Thomas LU (2025) In Physical Review Applied 23(1).
Abstract

Achieving good acoustic particle or cell separation performance requires skilled operators, who must carefully fine-tune the input parameters (actuation voltages, flow rates, and flow split ratios). Often the fine-tuning is done by time-consuming parameter sweeps, which are tedious and expensive. Here, we present a straightforward model-based approach to determining input parameters that yield optimal separation performance. The optimal parameters are a function of the device performance, the material properties of the separation species (compressibility, density, size), and the properties of the buffer (compressibility and density). The device performance is assessed by a calibration step, while the material properties are combined... (More)

Achieving good acoustic particle or cell separation performance requires skilled operators, who must carefully fine-tune the input parameters (actuation voltages, flow rates, and flow split ratios). Often the fine-tuning is done by time-consuming parameter sweeps, which are tedious and expensive. Here, we present a straightforward model-based approach to determining input parameters that yield optimal separation performance. The optimal parameters are a function of the device performance, the material properties of the separation species (compressibility, density, size), and the properties of the buffer (compressibility and density). The device performance is assessed by a calibration step, while the material properties are combined into the mobility ratio and measured by the in-flow mobility-ratio method, which is introduced in this work. The optimal separation settings are validated by separating green fluorescent 7.8-μm particles from red fluorescent 4.9-μm particles.

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Contribution to journal
publication status
published
subject
in
Physical Review Applied
volume
23
issue
1
article number
014054
publisher
American Physical Society
external identifiers
  • scopus:85216510883
ISSN
2331-7019
DOI
10.1103/PhysRevApplied.23.014054
language
English
LU publication?
yes
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Publisher Copyright: © 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by "https://www.kb.se/samverkan-och-utveckling/oppen-tillgang-och-bibsamkonsortiet/bibsamkonsortiet.html"Bibsam.
id
4e5856cd-5a0f-4b0c-9290-654a2c08e866
date added to LUP
2025-04-11 10:53:19
date last changed
2025-04-11 10:54:01
@article{4e5856cd-5a0f-4b0c-9290-654a2c08e866,
  abstract     = {{<p>Achieving good acoustic particle or cell separation performance requires skilled operators, who must carefully fine-tune the input parameters (actuation voltages, flow rates, and flow split ratios). Often the fine-tuning is done by time-consuming parameter sweeps, which are tedious and expensive. Here, we present a straightforward model-based approach to determining input parameters that yield optimal separation performance. The optimal parameters are a function of the device performance, the material properties of the separation species (compressibility, density, size), and the properties of the buffer (compressibility and density). The device performance is assessed by a calibration step, while the material properties are combined into the mobility ratio and measured by the in-flow mobility-ratio method, which is introduced in this work. The optimal separation settings are validated by separating green fluorescent 7.8-μm particles from red fluorescent 4.9-μm particles.</p>}},
  author       = {{Baasch, Thierry and Edthofer, Alexander and Péroux, Linda and Rengbrandt, Olivia and Silversand, Lovisa and Lenshof, Andreas and Laurell, Thomas}},
  issn         = {{2331-7019}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Applied}},
  title        = {{Optimizing the quality of acoustophoretic separation by the in-flow mobility-ratio method}},
  url          = {{http://dx.doi.org/10.1103/PhysRevApplied.23.014054}},
  doi          = {{10.1103/PhysRevApplied.23.014054}},
  volume       = {{23}},
  year         = {{2025}},
}