Flow acceleration effect on canser cell deformation abd detachment

L. S.L. Cheung, X. J. Zheng, A. Stopa, J. Schroeder, R. L. Heimark, J. C. Baygents, R. Guzman, Y. Zoharl

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


The effect of flow acceleration, rather than just the flow rate, on the response of an attached cancer cell is for the first time reported. Selective binding of prostate cancer cells to a surface functionalized with anti-N-cadherin antibodies utilizing a microfluidic system under flow conditions has been studied [1]. Here, the behavior of a captured cell under a time-dependent flow field is investigated experimentally and numerically. Under slowly increasing flow rate, the cell deformation is more pronounced resulting in lower drag force on attached cells. Furthermore, the contact area between the cell and the functionalized surface is larger, potentially enhancing the cell adhesion force. Consequently, a higher flow rate is required to detach cells exposed to such a flow field. Numerical simulations have been utilized in effort to quantify the required detachment force. The results confirm that to obtain a similar shear stress, a higher flow rate is needed for attached cells under lower flow acceleration.

Original languageEnglish (US)
Article number4805411
Pages (from-to)431-434
Number of pages4
JournalProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
StatePublished - 2009
Event22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2009 - Sorrento, Italy
Duration: Jan 25 2009Jan 29 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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