Mesoscale sample preparation device and systems for determination and processing of analytes
First Claim
1. A device for preparing a test sample, comprising particulate components, for analysis, said device comprising a sample flow passage having a sample inlet and an outlet in fluid communication and a separator disposed between said inlet and said outlet, said separator having an upstream-facing portion defining a separation zone in said flow passage in which said particulate components are collected, and a flow channel in fluid communication with said separation zone for affording discharge of collected particulate components from said separation zone, said channel having an inlet section for directing a carrier fluid into said separation zone and over the upstream-facing portion of said separator, and a discharge section for directing said carrier fluid from over the upstream-facing portion of said separator and out of said separation zone, at least one of said flow passage and said flow channel sections having at least one mesoscale dimension.
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Abstract
A mesoscale sample preparation device capable of providing microvolume test samples, separated into a cell-enriched fraction and a fraction of reduced cell content, for performing various analyses, such as binding assays, determinations involving polynucleotide amplification and the like. Analytical systems including such devices are also disclosed.
900 Citations
28 Claims
- 1. A device for preparing a test sample, comprising particulate components, for analysis, said device comprising a sample flow passage having a sample inlet and an outlet in fluid communication and a separator disposed between said inlet and said outlet, said separator having an upstream-facing portion defining a separation zone in said flow passage in which said particulate components are collected, and a flow channel in fluid communication with said separation zone for affording discharge of collected particulate components from said separation zone, said channel having an inlet section for directing a carrier fluid into said separation zone and over the upstream-facing portion of said separator, and a discharge section for directing said carrier fluid from over the upstream-facing portion of said separator and out of said separation zone, at least one of said flow passage and said flow channel sections having at least one mesoscale dimension.
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26. A system for determining an analyte in a fluid sample having particulate components, said system comprising a sample preparation device which comprises a sample flow passage having a sample inlet and an outlet in fluid communication and a separator disposed between said inlet and said outlet, said separator having an upstream-facing portion defining a separation zone in said flow passage in which said particulate components are collected, and an analyte detection device comprising:
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a solid substrate fabricated to define; a sample inlet port; and
a flow system comprising;an analyte detection region in fluid communication with said inlet port, said region containing a reagent which interacts with said analyte to yield a detectable product which is determinative of said analyte, and a detector for detecting said product; the flow passage outlet of said sample preparation device being in fluid communication with said sample inlet port of said analyte detection device, and at least one of said flow passage and said region having at least one mesoscale dimension. - View Dependent Claims (27, 28)
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Specification