KEITH F BROWN
Broker in Cambridge, MA
License number
Massachusetts 9007946
Issued Date
Jun 22, 1994
Expiration Date
Jul 10, 1996
Type
Salesperson
Address
Address
Cambridge, MA 02138
Professional information
Dielectrophoretic Tweezers Apparatus And Methods
US Patent:
8021532, Sep 20, 2011
Filed:
Feb 19, 2009
Appl. No.:
12/388660
Inventors:
Thomas Hunt - Portland OR, US
Robert Westervelt - Lexington MA, US
Ania Bleszynski - Thousand Oaks CA, US
Jonathan Aguilar - Miami FL, US
Keith Brown - Cambridge MA, US
Robert Westervelt - Lexington MA, US
Ania Bleszynski - Thousand Oaks CA, US
Jonathan Aguilar - Miami FL, US
Keith Brown - Cambridge MA, US
Assignee:
President and Fellows of Harvard College - Cambridge MA
International Classification:
B03C 5/02
US Classification:
204643, 204547
Abstract:
Dielectrophoretic (DEP) tweezers apparatus and methods for various applications, including particle trapping. Multiple electrodes (e. g. , two or three) are disposed on or otherwise constitute an elongated object forming a tip. Exemplary electrode configurations include, but are not limited to, coaxial and triaxial arrangements. A voltage is applied across these electrodes to produce a non-uniform electromagnetic field proximate to the tip thereby creating a dielectrophoretic trap. Once trapped, a particle may be moved to desired locations via manipulation of the elongated object or the medium in which the particle is located. Multiple DEP tweezers apparatus may be arranged to form arrays of tips capable of respectively generating local electromagnetic fields confined to the tips. Such DEP arrays may be employed in nanofabrication processes involving nanolithography or nano-manipulation, as well as data storage and retrieval applications.