Method for filtering particles from a fluid

Details Method for filtering particles from a fluid Method for filtering particles from a fluid

2006-03-06

2008-05-13

Kim, John (Department: 1797)

Liquid purification or separation

Processes

Separating

C210S800000, C359S360000, C359S486010, C385S132000, C422S050000, C422S068100, C422S082080, C422S105000, C422S105000, C428S212000, C428S220000, C428S304400, C428S310500, C428S314200, C428S314800, C428S315900, C428S457000, C428S913000, C428S172000, C435S004000, C436S045000, C436S046000, C436S177000, C436S178000

Reexamination Certificate

active

07371329

ABSTRACT:
Methods for filtering particles from a fluid are disclosed, wherein an array of microstructures defining respective microchannels having respective minimum widths are used to separate the fluid from particles to be filtered. The fluid flows through the minimum widths into the microchannels defined between adjacent microstructures. The particles to be filtered are prevented from passing through the respective minimum widths, resulting in filtration of those particles from the fluid. The microchannels can be provided with gradient characteristics to separate particles in the fluid according to size.

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U.S. Provisional Appl. No. 60/307,668, filed Jul. 25, 2001, Title: High Throughput Nanofluidic Chip for DNA Sizing.

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