Experimental and theoretical study of hydrodynamic cell lysing of cancer cells in a high-throughput Circular Multi-Channel Microfiltration device

W. Ma, D. Liu, H. Shagoshtasbi, A. Shukla, E. S. Nugroho, Y. Zohar, Y.-K. Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Microfiltration is an important microfluidic technique suitable for enrichment and isolation of cells. However, cell lysing could occur due to hydrodynamic damage that may be detrimental for medical diagnostics. Therefore, we conducted a systematic study of hydrodynamic cell lysing in a high-throughput Circular Multi-Channel Microfiltration (CMCM) device integrated with a polycarbonate membrane. HeLa cells (cervical cancer cells) were driven into the CMCM at different flow rates. The viability of the cells in the CMCM was examined by fluorescence microscopy using Acridine Orange (AO)/Ethidium Bromide (EB) as a marker for viable/dead cells. A simple analytical cell viability model was derived and a 3D numerical model was constructed to examine the correlation of between cell lysing and applied shear stress under varying flow rate and Reynolds number. The measured cell viability as a function of the shear stress was consistent with theoretical and numerical predictions when accounting for cell size distribution. © 2013 IEEE.
Original languageEnglish (US)
Title of host publicationThe 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages412-415
Number of pages4
ISBN (Print)9781467363525
DOIs
StatePublished - Apr 2013
Externally publishedYes

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