Abstract:
PROBLEM TO BE SOLVED: To provide a reaction apparatus capable of promptly performing optically interrogating of a sample and capable of controlling heat-exchange.SOLUTION: An assembly for performing controlled heat-exchanging reaction is provided. The assembly includes: a chemical reaction chamber 10 adapted to receive a sample and allow the sample to chemically react; a thermal sleeve having heating elements for making efficient thermal contact with the reaction chamber; and an instrument with a housing comprising an electrical connection, a cooling source, a reaction area adapted to receive the thermal sleeve, an optics assembly in optical communication with the chemical reaction chamber, and a circuit for monitoring and controlling the optics assembly and for collecting the output signal of the optics assembly. Preferably there are a plurality of housings and associated modules, each of which may be independently controlled for heat exchanging operations.
Abstract:
PROBLEM TO BE SOLVED: To provide a reaction apparatus capable of optically detecting a sample promptly and controlling heat exchange.SOLUTION: There is provided an assembly for performing controlled heat-exchanging reactions. The assembly includes: a chemical reaction chamber adapted to receive a sample and allow the sample to chemically react; and a thermal sleeve having heating elements for making efficient thermal contact with a reaction chamber. The assembly also includes an instrument with a housing provided with: an electrical connection; a cooling source; a processing area adapted to receive the thermal sleeve; an optical assembly in optical communication with the chemical reaction chamber; and a circuit for monitoring and controlling the optical assembly and for collecting the output signal of the optical assembly. Preferably, there are a plurality of housings and associated modules, each of which may be independently controlled for heat exchanging operations.
Abstract:
PROBLEM TO BE SOLVED: To provide a reaction apparatus capable of promptly performing optically interrogating of a sample and capable of controlling heat-exchange. SOLUTION: An assembly for performing controlled heat-exchanging reaction is provided. The assembly is provided with: a chemical reaction chamber adapted to receive a sample and allow the sample to chemically react; a thermal sleeve having heating elements for making efficient thermal contact with a reaction chamber; and an instrument with a housing comprising an electrical connection, a cooling source, a reaction area adapted to receive a thermal sleeve, and an optics assembly in optical communication with a chemical reaction chamber, and a circuit for monitoring and controlling the optics assembly and for collecting the output signal of the optics assembly. Preferably there are a plurality of housings and associated modules, each of which may be independently controlled for heat exchanging operations. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
A multi-site reactor system (60) provides dynamic, independent, computer-implemented control of each reaction site, permitting different thermal profiles to be performed on samples at different reaction sites simultaneously. The system includes reaction vessels (2) for holding reaction mixtures and heat-exchanging modules (37) for receiving the vessels. The system also includes a controller (64) for independently controlling each heat-exchanging module (37) to heat and/or cool the reaction mixture contained therein. The controller (64) includes an adaptive control program for dynamically adjusting the duration or intensity of power pulses provided to each heating element and for dynamically adjusting the duration of fan operation to attain target temperatures quickly and accurately without overshooting or undershooting the target.
Abstract:
An apparatus for thermally controlling and optically interrogating a reaction mixture includes a vessel (2) having a chamber (10) for holding the mixture. The apparatus also includes a heat-exchanging module (37) having a pair of opposing thermal plates (34A, 34B) for receiving the vessel (2) between them and for heating and/or cooling the mixture contained in the vessel. The module (37) also includes optical excitation and detection assemblies (46, 48) positioned to optically interrogate the mixture. The excitation assembly (46) includes multiple light sources (100) and a set of filters for sequentially illuminating labeled analytes in the mixture with excitation beams in multiple excitation wavelength ranges. The detection assembly (48) includes multiple detectors (102) and a second set of filters for detecting light emitted from the chamber (10) in multiple emission wavelength ranges. The optics assemblies (46, 48) thus provide a multi-channel system for detcting a plurality of different target analytes in the mixture.
Abstract:
An assembly for performing controlled heat exchanging reactions is provided. The assembly has a chemical reaction chamber adapted to receive a sample and allow the sample to chemically react; a thermal sleeve having heating elements for making efficient thermal contact with a reaction chamber; an instrument with a housing comprising an electrical connection, a cooling source, a processing area adapted to receive a thermal sleeve, and an optics assembly in optical communication with a chemical reaction chamber; and a circuit for monitoring and controlling the optics assembly and for collecting the output signal of the optics assembly. Preferably there are a plurality of housings and associated modules, each of which may be independently controlled for heat exchanging operations.
Abstract:
The invention provides an apparatus, method, and computer program product for determining a threshold value (e.g., a cycle number or time value) in a nucleic acid amplification reaction. The apparatus is programmed to amplify a nucleic acid sequence and measure, at a plurality of different times during the amplification reaction, at least one signal whose intensity is related to the quantity or concentration of the nucleic acid sequence being amplified. The apparatus stores signal values defining a growth curve for the nucleic acid sequence, determines a first or second derivative of the growth curve, and calculates a threshold cycle number or time value associated with a characteristic of the derivative (e.g., a positive peak of the first derivative, a positive or negative peak of the second derivative, or a zero-crossing of the second derivative). The invention also provides apparatuses, methods, and computer program products for determining an unknown starting quantity or concentration of a nucleic acid sequence in a test sample using quantitative internal controls or using internal standards.
Abstract:
An assembly for performing controlled heat exchanging reactions is provided. The assembly has a chemical reaction chamber adapted to receive a sample and allow the sample to chemically react; a thermal sleeve having heating elements for making efficient thermal contact with a reaction chamber; an instrument with a housing comprising an electrical connection, a cooling source, a processing area adapted to receive a thermal sleeve, and an optics assembly in optical communication with a chemical reaction chamber; and a circuit for monitoring and controlling the optics assembly and for collecting the output signal of the optics assembly. Preferably there are a plurality of housings and associated modules, each of which may be independently controlled for heat exchanging operations.