SYSTEM FOR ISOLATING BIOMOLECULES FROM A SAMPLE
First Claim
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1. An article of manufacture for purification of RNA from white blood cells of a sample comprising white blood cells, said article comprising:
- at least one port for intake of each of a number of fluids;
at least one port for exit of at least one fluid;
at least one solid support for binding of cells of whole blood;
at least one solid support for binding of RNA from cells of whole blood; and
at least one rotary valve for control of movement of fluids among three or more conduits,wherein the intake port(s), exit port(s), solid supports, and rotary valve(s) are connected to each other to create a circuit from the intake port to the exit port.
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Abstract
The present invention provides an automated system for purification of a substance of interest. The system generally comprises an instrument for moving fluids through the system, a reagent pack for storing fluids, and a purification cartridge. The cartridge comprises two filtration units for binding substances based on different physical properties. The cartridge also comprises rotary valves for control of movement of fluids on the cartridge. In preferred embodiments, the system is useful for purifying RNA from blood samples.
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26 Claims
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1. An article of manufacture for purification of RNA from white blood cells of a sample comprising white blood cells, said article comprising:
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at least one port for intake of each of a number of fluids; at least one port for exit of at least one fluid; at least one solid support for binding of cells of whole blood; at least one solid support for binding of RNA from cells of whole blood; and at least one rotary valve for control of movement of fluids among three or more conduits, wherein the intake port(s), exit port(s), solid supports, and rotary valve(s) are connected to each other to create a circuit from the intake port to the exit port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 21, 22, 23, 24, 25, 26)
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8. An automated method for the isolation of RNA from white blood cells, said method comprising:
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a) causing a sample comprising white blood cells to contact and flow over a first solid support, whereby the first solid support entraps cells present in the sample and removes them from the sample; b) causing cells other than white blood cells on the first solid support to lyse, whereby lysis causes the cells and their components to be released from the first solid support and removed from cells remaining entrapped by the first solid support; c) causing the cells remaining on the first solid support to lyse, thereby releasing RNA into a lysate; and d) causing the lysate to contact and flow over a second solid support, whereby the second solid support binds the RNA and allows other substances to pass unbound, wherein the method is performed on a single device and the movement of fluids within the method is controlled, at least in part, by two or more rotary valves present on the device, and wherein all of the steps of the method are controlled automatically by a computing means. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification