Methods and apparatuses for stretching polymers
AssigneeU.S. Genomics, Inc.
InventorsEugene Y. Chan, Lance C. Gleich, Parris S. Wellman
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AssigneeU.S. Genomics, Inc.
InventorsEugene Y. Chan, Lance C. Gleich, Parris S. Wellman
Estimating the term…
The present invention provides structures and methods that allow polymers of any length, including nucleic acids containing entire genomes, to be stretched into a long, linear conformation for further analysis. The present invention also provides structures and methods for selecting and stretching polymers based on their lengths. Polymers are loaded into a device and run through the structures. Stretching is achieved by, e.g., applying shear forces as the polymer passes through the structures, placing obstacles in the path of the polymer, or a combination thereof. Since multiple molecules may be stretched in succession, extremely high throughput screening, e.g., screening of more than one molecule per second, is achieved.
An apparatus for stretching at least one polymer in a fluid sample, said apparatus comprising an elongation structure, wherein said elongation structure comprises a tapered channel, said tapered channel decreasing in width from a first end to a second end, and wherein said at least one polymer, when present, moves along said tapered channel from said first end to said second end and is stretched.
An apparatus for stretching at least one polymer in a fluid sample, said apparatus comprising an elongation structure, wherein said elongation structure comprises a channel with at least one bend, and wherein said at least one polymer, when present, moves along said channel and is stretched.
An apparatus for stretching at least one polymer in a fluid sample, said apparatus comprising an elongation structure, wherein said elongation structure comprises a channel along which said at least one polymer, when present, moves in a flow direction, and wherein said channel comprises a plurality of obstacles to motion of said at least one polymer, said plurality of obstacles having cross-sectional area gradated down along said flow direction.
Dependencies are inferred from the claim text.