Production and validation of acoustic field to enhance trapping efficiency of microbubbles by using a matrix array transducer

Naoto Hosaka, Ren Koda, Shinya Onogi, Takashi Mochizuki, Kohji Masuda

Research output: Contribution to journalArticle

22 Citations (Scopus)


We have developed a new matrix array transducer for controlling the behavior of microbubbles, which is different from that for high-intensity focused ultrasound (HIFU) therapy, in order to emit continuous wave by designing an acoustic field including multiple focal points. In the experiment using a thin-channel model, a wider acoustic field has an advantage for trapping microbubbles. In the experiment using a straight-path model, we have confirmed that a higher concentration of acoustic energy does not result in more aggregates. The dispersion of acoustic energy is important because the trapping performance is affected by the relationship between the shape of the acoustic field and the concentration of the suspension.

Original languageEnglish
Article number07HF14
JournalJapanese journal of applied physics
Issue number7 PART 2
Publication statusPublished - Jul 1 2013


All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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