Methods for manipulating liquid substances in multi-chambered receptacles
First Claim
1. A method for moving fluids between chambers of a receptacle having a plurality of interconnected chambers, the method comprising the steps of:
- (a) combining in a first chamber of the receptacle a fluid sample and a combination including a sample processing reagent comprising dispersible solid supports in a liquid medium and an immiscible liquid to concentrate the solid supports in the first chamber, wherein the fluid contents of the first chamber comprise the fluid sample, the liquid medium, and the immiscible liquid, and wherein the solid supports are magnetically-responsive and adapted to immobilize one or more analytes thereon wherein the plurality of interconnected chambers defines a non-linear arrangement of chambers;
(b) exposing the solid supports in the first chamber to a magnetic field; and
(c) moving at least a portion of the fluid contents of the first chamber from the first chamber to a second chamber of the receptacle through a connection while continuing to expose the solid supports in the first chamber to the magnetic field to retain the solid supports in the first chamber, wherein the connection is an openable connection that is altered from a closed state to an open state when a substance-moving force is applied to the contents of the first chamber during step (c).
6 Assignments
0 Petitions
Accused Products
Abstract
A receptacle having a plurality of interconnected chambers arranged to permit multiple process steps or processes to be performed independently or simultaneously. The receptacles are manufactured to separate liquid from dried reagents and to maintain the stability of the dried reagents. An immiscible liquid, such as an oil, is included to control loading of process materials, facilitate mixing and reconstitution of dried reagents, limit evaporation, control heating of reaction materials, concentrate solid support materials to prevent clogging of fluid connections, provide minimum volumes for fluid transfers, and to prevent process materials from sticking to chamber surfaces. The receptacles can be adapted for use in systems having a processing instrument that includes an actuator system for selectively moving fluid substances between chambers and a detector. The actuator system can be arranged to concentrate an analyte present in a sample. The detector can be used to detect an optical signal emitted by the contents of the receptacle.
372 Citations
25 Claims
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1. A method for moving fluids between chambers of a receptacle having a plurality of interconnected chambers, the method comprising the steps of:
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(a) combining in a first chamber of the receptacle a fluid sample and a combination including a sample processing reagent comprising dispersible solid supports in a liquid medium and an immiscible liquid to concentrate the solid supports in the first chamber, wherein the fluid contents of the first chamber comprise the fluid sample, the liquid medium, and the immiscible liquid, and wherein the solid supports are magnetically-responsive and adapted to immobilize one or more analytes thereon wherein the plurality of interconnected chambers defines a non-linear arrangement of chambers; (b) exposing the solid supports in the first chamber to a magnetic field; and (c) moving at least a portion of the fluid contents of the first chamber from the first chamber to a second chamber of the receptacle through a connection while continuing to expose the solid supports in the first chamber to the magnetic field to retain the solid supports in the first chamber, wherein the connection is an openable connection that is altered from a closed state to an open state when a substance-moving force is applied to the contents of the first chamber during step (c). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification