Effect of ruptured cavitated bubble cluster on the extent of the cell deformation by ultrasound

Autor: Peilin Cao, Changchun Hao, Binbin Li, Hao Jiang, Yongfeng Liu
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Ultrasonics Sonochemistry, Vol 80, Iss , Pp 105843- (2021)
Druh dokumentu: article
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2021.105843
Popis: In this paper, the bubble-cell model is presented. The effects of the spacing between the bubble population and the cell, the radius of the bubble and the bubble medium on the degree of cell deformation were investigated by solving the Helmholtz equation and the equilibrium of motion equation using COMSOL Multiphysis@ software. The ultrasonic transducer is applied in a round bottom flask with the bubble-cell model on the side of the ultrasonic transducer. When the distance between the bubble cluster and the cell gradually increases, the extent of deformation of the cell is reflected as first increasing and then decreasing, reaching the maximum deformation at D = 2. When the radius of the bubble is changed, there is a “constant frequency” at low frequency ultrasound in any distance case, at which the cell deformation will be violent. However, when the bubble medium is changed, there is no significant change in the degree of deformation of the cells. In other words, changes in the structure of the bubble-cell model affect the degree of cell deformation, but without structural changes, the degree of cell deformation changes very little.
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