| Autor: |
James Friend, Leslie Y. Yeo, Dian R. Arifin |
| Rok vydání: |
2006 |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters, vol 89, iss 10 |
| Popis: |
In a similar fashion to Einstein's tea leaf paradox, the rotational liquid flow induced by ionic wind above a liquid surface can trap suspended microparticles by a helical motion, spinning them down towards a bottom stagnation point. The motion is similar to Batchelor [Q. J. Mech. Appl. Math. 4, 29 (1951)] flows occurring between stationary and rotating disks and arises due to a combination of the primary azimuthal and secondary bulk meridional recirculation that produces a centrifugal and enhanced inward radial force near the chamber bottom. The technology is thus useful for microfluidic particle trapping/concentration; the authors demonstrate its potential for rapid erythrocyte/blood plasma separation for miniaturized medical diagnostic kits. © 2006 American Institute of Physics. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
