Particle trapping in a capillary tube

Ian Gralinski, Sam Raymond, Tuncay Alan, Adrian Neild

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch


The device described here is able to trap particles along the length of a channel, with distances between particle clumps larger than half an acoustic wavelength. It is actuated using a piezoelectric transducer adhered to a capillary, where the capillary defines the channel. A significant feature is that particles are located away from the opaque transducer and hence retain the ability to be viewed easily. Finite element modelling is used in order to explain the observed behaviour.

Original languageEnglish
Title of host publication2012 IEEE International Ultrasonics Symposium, IUS 2012
Subtitle of host publicationDresden, Germany; 7-10 October 2012
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781467345620
ISBN (Print)9781467345613
Publication statusPublished - 2012
EventIEEE International Ultrasonics Symposium (IUS) 2012 - International Congress Center Dresden, Dresden, Germany
Duration: 7 Oct 201210 Oct 2012 (Proceedings)


ConferenceIEEE International Ultrasonics Symposium (IUS) 2012
Abbreviated titleIUS 2012
Internet address


  • acoustic radiation force
  • manipulation
  • positioning

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