Hydrodynamic enhanced dielectrophoretic particle trapping
US6660493B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Jun 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0424
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrodynamic enhanced dielectrophoretic particle trapping carried out by introducing a side stream into the main stream to squeeze the fluid containing particles close to the electrodes producing the dielelectrophoretic forces. The region of most effective or the strongest forces in the manipulating fields of the electrodes producing the dielectrophoretic forces is close to the electrodes, within 100 &mgr;m from the electrodes. The particle trapping arrangement uses a series of electrodes with an AC field placed between pairs of electrodes, which causes trapping of particles along the edges of the electrodes. By forcing an incoming flow stream containing cells and DNA, for example, close to the electrodes using another flow stream improves the efficiency of the DNA trapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.