2D individual particle grids patterned with surface acoustic waves

David J. Collins, Tuncay Alan, Adrian Neild

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Acoustic forces have the demonstrated ability to pattern particles and cells at locations of minimum acoustic force potential - more often than not at the acoustic 'nodes'. However, as a result of the relatively low frequencies used, the wavelength is typically substantially larger than that of the dimensions of the particles that are patterned, resulting in the collection of clumps of particles rather than individual ones. However, with the relatively recent advent of surface acoustic waves (SAW) for microfluidic applications, it is now possible to generate acoustic fields with wavelengths on the order of microns. Here, using high-frequency SAW, we demonstrate for the first time the patterning in a 2D grid of individual particles using acoustic wavelengths on the order of the particle diameters themselves. Potential applications include single-cell analysis, where each cell is viewed and analyzed in isolation.

Original languageEnglish
Title of host publicationOptical Trapping Applications, Proceedings Optics in the Life Sciences, OTA 2015
Subtitle of host publication2–15 April 2015, Vancouver, Canada
PublisherOptical Society of America (OSA)
Number of pages3
ISBN (Electronic)9781557529541
Publication statusPublished - 6 Apr 2015
EventOptical Trapping Applications, OTA 2015 - Vancouver, Canada
Duration: 12 Apr 201515 Apr 2015


ConferenceOptical Trapping Applications, OTA 2015
Abbreviated titleOTA 2015
Internet address

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