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Acoustic trapping in the undergraduate laboratory
Department of Physics and Astronomy, Amherst College, Amherst, Massachusetts 01002.
Department of Physics and Astronomy, Amherst College, Amherst, Massachusetts 01002.
Department of Physics and Astronomy, Amherst College, Amherst, 01002, MA, United States.
Department of Physics and Astronomy, Amherst College, Amherst, Massachusetts 01002.
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2024 (English)In: American Journal of Physics, ISSN 0002-9505, E-ISSN 1943-2909, Vol. 92, no 1, p. 59-64Article in journal (Refereed) Published
Abstract [en]

Acoustic trapping is used in modern biophysics laboratories to study cell adhesion or aggregation, to sort particles, or to build model tissues. Here, we create an acoustic trapping setup in liquid for an undergraduate instructional laboratory that is low-cost, easy to build, and produces results in a 1-hour laboratory period. In this setup, we use a glass slide, cover slip, and double-sided tape to make the sample chamber. A piezo-electric transducer connected to a function generator serves as the acoustic source. We use this setup to measure the node spacing (millimeters) and the acoustic trap force (picoNewtons). We anticipate that the simplicity of the experimental setup, the tractability of the theoretical equations, and the richness of the research topics on the subject will lead to an undergraduate laboratory with many interesting student projects.

Place, publisher, year, edition, pages
American Association of Physics Teachers (AAPT) , 2024. Vol. 92, no 1, p. 59-64
Keywords [en]
Acoustics, Transducers, Wave forms, Hydrology, Polymers, Students, Educational aids, Microscopy, Biological physics, Laboratories
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-342197DOI: 10.1119/5.0167269ISI: 001128558800010Scopus ID: 2-s2.0-85180970411OAI: oai:DiVA.org:kth-342197DiVA, id: diva2:1827661
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QC 20240115

Available from: 2024-01-15 Created: 2024-01-15 Last updated: 2024-01-15Bibliographically approved

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Wiklund, Martin

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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