Length-dependent recoil separation of long molecules

Details Length-dependent recoil separation of long molecules Length-dependent recoil separation of long molecules

2008-01-08

2008-01-08

Saucier, Sandra E. (Department: 1651)

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

C435S173100

Reexamination Certificate

active

07316769

ABSTRACT:
Separation of long molecules by length is obtained by forcing such molecules to traverse a boundary between a low free-energy region and a high free-energy region. In one embodiment, the high free-energy region is a dense pillar region or other structure formed on a semiconductor substrate. One or more membranes are used in further embodiments. The low free-energy region is a larger chamber formed adjacent the high free-energy region. A recoil phase allows longer molecules not fully driven into the high free-energy region to recoil into the low free-energy region. In a further variation, the high free-energy region is a membrane having nanoscale holes.

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