Ultrasound, contrast agents and biological cells; a simplified model for their interaction during in vitro experiments.
2006
Abstract A model based on simplifying assumptions is described for the time course of an in vitro experiment in which a beam of ultrasound passes through a suspension of biological cells and gaseous contrast agents (UCAs). It is assumed that cavitation-related activation events (AEs) occur, during each of which a UCA is destroyed or becomes nonfunctional and, at the same time, nearby cells are lysed or otherwise altered. If the UCAs are highly concentrated, the ultrasound attenuation is high and may significantly affect the action. The number of cells affected by each AE depends on the concentrations of cells and UCAs as well as the concentration ratio. (E-mail: Wesley.Nyborg@uvm.edu )
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