Dielectrophoretic columnar focusing device
Abstract
A dielectrophoretic columnar focusing device uses interdigitated microelectrodes to provide a spatially non-uniform electric field in a fluid that generates a dipole within particles in the fluid. The electric field causes the particles to either be attracted to or repelled from regions where the electric field gradient is large, depending on whether the particles are more or less polarizable than the fluid. The particles can thereby be forced into well defined stable paths along the interdigitated microelectrodes. The device can be used for flow cytometry, particle control, and other process applications, including cell counting or other types of particle counting, and for separations in material control.
- Inventors:
-
- Albuquerque, NM
- Tijeras, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 985227
- Patent Number(s):
- 7713395
- Application Number:
- 11/401,714
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
James, Conrad D, Galambos, Paul C, and Derzon, Mark S. Dielectrophoretic columnar focusing device. United States: N. p., 2010.
Web.
James, Conrad D, Galambos, Paul C, & Derzon, Mark S. Dielectrophoretic columnar focusing device. United States.
James, Conrad D, Galambos, Paul C, and Derzon, Mark S. Tue .
"Dielectrophoretic columnar focusing device". United States. https://www.osti.gov/servlets/purl/985227.
@article{osti_985227,
title = {Dielectrophoretic columnar focusing device},
author = {James, Conrad D and Galambos, Paul C and Derzon, Mark S},
abstractNote = {A dielectrophoretic columnar focusing device uses interdigitated microelectrodes to provide a spatially non-uniform electric field in a fluid that generates a dipole within particles in the fluid. The electric field causes the particles to either be attracted to or repelled from regions where the electric field gradient is large, depending on whether the particles are more or less polarizable than the fluid. The particles can thereby be forced into well defined stable paths along the interdigitated microelectrodes. The device can be used for flow cytometry, particle control, and other process applications, including cell counting or other types of particle counting, and for separations in material control.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {5}
}
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