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Effect of ultrasonic frequency and power on the disruption of algal cells.
MedLine Citation:
PMID:  25465879     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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 1146kHz 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<1146kHz, and for D. salina was 20<580≅864⩽1146kHz. 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.
Authors:
Ken Yamamoto; Patrick M King; Xiaoge Wu; Timothy J Mason; Eadaoin M Joyce
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-13
Journal Detail:
Title:  Ultrasonics sonochemistry     Volume:  -     ISSN:  1873-2828     ISO Abbreviation:  Ultrason Sonochem     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-12-3     Completed Date:  -     Revised Date:  2014-12-4    
Medline Journal Info:
Nlm Unique ID:  9433356     Medline TA:  Ultrason Sonochem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier B.V. All rights reserved.
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