Selective isolation of live/dead cells using contactless dielectrophoresis (cDEP). Shafiee, H., Sano, M. B., Henslee, E. A., Caldwell, J. L., & Davalos, R. V. Lab Chip, 10(4):438-45, 2010. Shafiee, Hadi Sano, Michael B Henslee, Erin A Caldwell, John L Davalos, Rafael V Journal Article Research Support, Non-U.S. Gov't England 2010/02/04 Lab Chip. 2010 Feb 21;10(4):438-45. doi: 10.1039/b920590j. Epub 2010 Jan 19.
doi  abstract   bibtex   
Contactless dielectrophoresis (cDEP) is a recently developed method of cell manipulation in which the electrodes are physically isolated from the sample. Here we present two microfluidic devices capable of selectively isolating live human leukemia cells from dead cells utilizing their electrical signatures. The effect of different voltages and frequencies on the gradient of the electric field and device performance was investigated numerically and validated experimentally. With these prototype devices we were able to achieve greater than 95% removal efficiency at 0.2-0.5 mm s(-1) with 100% selectivity between live and dead cells. In conjunction with enrichment, cDEP could be integrated with other technologies to yield fully automated lab-on-a-chip systems capable of sensing, sorting, and identifying rare cells.
@article{RN233,
   author = {Shafiee, H. and Sano, M. B. and Henslee, E. A. and Caldwell, J. L. and Davalos, R. V.},
   title = {Selective isolation of live/dead cells using contactless dielectrophoresis (cDEP)},
   journal = {Lab Chip},
   volume = {10},
   number = {4},
   pages = {438-45},
   note = {Shafiee, Hadi
Sano, Michael B
Henslee, Erin A
Caldwell, John L
Davalos, Rafael V
Journal Article
Research Support, Non-U.S. Gov't
England
2010/02/04
Lab Chip. 2010 Feb 21;10(4):438-45. doi: 10.1039/b920590j. Epub 2010 Jan 19.},
   abstract = {Contactless dielectrophoresis (cDEP) is a recently developed method of cell manipulation in which the electrodes are physically isolated from the sample. Here we present two microfluidic devices capable of selectively isolating live human leukemia cells from dead cells utilizing their electrical signatures. The effect of different voltages and frequencies on the gradient of the electric field and device performance was investigated numerically and validated experimentally. With these prototype devices we were able to achieve greater than 95% removal efficiency at 0.2-0.5 mm s(-1) with 100% selectivity between live and dead cells. In conjunction with enrichment, cDEP could be integrated with other technologies to yield fully automated lab-on-a-chip systems capable of sensing, sorting, and identifying rare cells.},
   keywords = {Animals
Cell Death
Cell Line, Tumor
Cell Separation/instrumentation/*methods
Cell Survival
Electric Conductivity
Electrophoresis
Humans},
   ISSN = {1473-0197 (Print)
1473-0189},
   DOI = {10.1039/b920590j},
   year = {2010},
   type = {Journal Article}
}

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