Acoustic trapping of cells in a microfluidic format

In English This paper presents, for the first time, non-contact acoustic trapping of cells in a
microfluidic format. The employed acoustic force maintains the cells in the center of a
fluidic channel while allowing for perfusion of e.g. nutrients or drugs as well as optical
monitoring of the cells. Neural stem cells have been acoustically trapped and tested for
viability after 15 minutes of ultrasonic radiation. It is also shown that it is possible to grow
yeast cells suspended in an acoustic standing wave while perfusing with cell media.