Effect of ultrasonic frequency and power on the disruption of algal cells

K. Yamamoto, Patrick King, X. Wu, Timothy J. Mason, Eaodoin Joyce

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

In this work the effect of ultrasonic waves on suspensions of Chlamydomonas concordia and Dunaliella salina have been investigated at frequencies of 20, 585, 864 and 1146 kHz and at different acoustic powers. Results showed that the reduction in algal numbers was dependent on both frequency and acoustic power. The order of efficiency of the ultrasonic disruption of C. concordia at different frequencies was 20 <580 <864 <1146 kHz, and for D. salina was 20 <580 ≅ 864 ⩽ 1146 kHz. It is clear that high-frequency sonication is more effective than conventional low-frequency sonication for the disruption of cells for both species. Results showed that suitable disruption frequencies for each algae were associated with the mechanical properties of the cell. The frequency dependence of the efficiency of algae disruption on the mechanical resonances of both the algae cell is discussed in terms of bubble oscillation in an ultrasonic field.
Original languageEnglish
Pages (from-to)165-171
JournalUltrasonics Sonochemistry
Volume24
DOIs
Publication statusPublished - 2015

Fingerprint

Algae
Ultrasonics
Sonication
ultrasonics
alga
Acoustics
algae
acoustics
cells
Chlamydomonas
frequency dependence
Ultrasonic waves
Dunaliella
bubble
mechanical property
Suspensions
resonant vibration
oscillation
ultrasonic radiation
Mechanical properties

Bibliographical note

The full text of this item is not available from the repository.

Keywords

  • Algae
  • Disruption
  • High frequency sonication
  • Cavitation

Cite this

Effect of ultrasonic frequency and power on the disruption of algal cells. / Yamamoto, K.; King, Patrick; Wu, X.; Mason, Timothy J.; Joyce, Eaodoin.

In: Ultrasonics Sonochemistry, Vol. 24, 2015, p. 165-171.

Research output: Contribution to journalArticle

Yamamoto, K. ; King, Patrick ; Wu, X. ; Mason, Timothy J. ; Joyce, Eaodoin. / Effect of ultrasonic frequency and power on the disruption of algal cells. In: Ultrasonics Sonochemistry. 2015 ; Vol. 24. pp. 165-171.
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