Sonoporation of suspension cells with a single cavitation bubble in a microfluidic confinement

Le Gac, Severine and Zwaan, Ed and Berg van den, Albert and Ohl, Claus Dieter (2007) Sonoporation of suspension cells with a single cavitation bubble in a microfluidic confinement. Lab on a Chip, 7 (12). pp. 1666-1672. ISSN 1473-0197

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Abstract:	We report here the sonoporation of HL60 (human promyelocytic leukemia) suspension cells in a microfluidic confinement using a single laser-induced cavitation bubble. Cavitation bubbles can induce membrane poration of cells located in their close vicinity. Membrane integrity of suspension cells placed in a microfluidic chamber is probed through either the calcein release out of calcein-loaded cells or the uptake of trypan blue. Cells that are located farther away than four times R-max (maximum bubble radius) from the cavitation bubble center remain fully unaffected, while cells closer than 0.75 R-max become porated with a probability of >75%. These results enable us to define a distance of 0.75 R-max as a critical interaction distance of the cavitation bubble with HL60 suspension cells. These experiments suggest that flow-induced poration of suspension cells is applicable in lab-on-a-chip systems, and this might be an interesting alternative to electroporation.
Item Type:	Article
Copyright:	© 2007 Royal Society of Chemistry
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Biomedical and Environmental Sensor systems (BIOS)
Link to this item:	http://purl.utwente.nl/publications/62103
Official URL:	http://dx.doi.org/10.1039/b712897p
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