摘要:
A system for processing the contents of multiple reaction receptacles to detennine the amount of a target nucleic acid present in one or more of the reaction receptacles or to ascertain the presence or absence of a target nucleic acid in one or more of the reaction receptacles, said system comprising: (A) at least one temperature-controlled incubator including an incubation chamber for receiving reaction receptacles therein and for exposing the reaction receptacles within said incubation chamber to controlled temperature conditions; (B) a nucleic acid quantification system constructed and arranged to determine the amount of a target nucleic acid within the reaction receptacles by: (1) periodically measuring the amount of a signal emitted by the contents of each reaction receptacle; and (2) quantifying the amount of the target nucleic acid present in each reaction receptacle based upon the periodic measurements; and (C) a nucleic acid detection system constructed and arranged to ascertain the presence of the target nucleic acid within the reaction receptacle by: (1) detecting a signal emitted by the contents each reaction receptacle; and (2) ascertaining the presence or absence of the target nucleic acid in the reaction receptacle based upon whether or not a signal above a threshold level is detected.
摘要:
A system for processing the contents of one or more receptacles to detect an optical signal, if any, emitted by the contents of each receptacle, the system comprising: an incubator including a temperature-controlled chamber configured to receive one or more receptacles; at least one signal detector configured to detect an optical signal, if any, emitted by the contents of a receptacle disposed within said chamber in an operative position with respect to said signal detector; and at least one magnet disposed within said chamber so as to be adjacent to a receptacle that is in the operative position with respect to said signal detector.
摘要:
A computer-implemented method for determining the amount of an analyte of interest in a sample, the method comprising (a) forming amplification products from an analyte of interest, (b) collecting signal data with a signal measuring device concurrently with the formation of amplification products, the collected signal data comprising periodic measurements of the level of a signal emitted by the sample, wherein the level of signal emitted by the sample corresponds to the amount of amplification products formed by the sample, (c) storing the collected signal data in computer-readable media; and (d) using a computer programmed with an algorithm, which, when executed by the computer, is configured to cause the computer to access the data stored in step (c) and to adjust the data collected in step (b) to remove background contributions to the measured levels associated with sources other than the presence of the analyte of interest, normalize the data adjusted in step (d)(1) by dividing the adjusted data by the maximum level measured, adjusted to remove background contributions, approximate a curve through a portion of the adjusted, normalized data between a predetermined low bound stored on computer-readable media and a predetermined high bound stored on computer-readable media, determine an emergence time at which the curve approximated in step (d)(3) crosses a predetermined threshold data level and determine the amount of the analyte of interest by comparing the emergence time determined in step (d)(4) with threshold times determined for known amounts of the analyte of interest and stored on computer-readable media.
摘要:
A method for processing the contents of multiple reaction receptacles to quantitatively determine the amount of a target nucleic acid present in each of said reaction receptacles, said method comprising the automated steps of a) successively providing to a heater a plurality of reaction receptacles, each reaction receptacle being provided with reagents sufficient to amplify and detect the presence of a target sequence, or its complement, contained within a target nucleic acid under the temperature conditions of said heater; b) periodically measuring the amount of a signal associated with the presence of an amplification product containing said target sequence or its complement in each reaction receptacle provided to said heater in accordance with step a); and c) quantifying the amount of said target nucleic acid present in each reaction receptacle based upon said measurements obtained in step b), wherein a portion of said plurality of reaction receptacles are being successively provided to said heater in accordance with step a) as the contents of a portion of said plurality of reaction receptacles are being processed in accordance with steps b)-c).
摘要:
A system for processing the contents of one or more receptacles to detect an optical signal, if any, emitted by the contents of each receptacle, the system comprising: an incubator including a temperature-controlled chamber configured to receive one or more receptacles; at least one signal detector configured to detect an optical signal, if any, emitted by the contents of a receptacle disposed within said chamber in an operative position with respect to said signal detector; and at least one magnet disposed within said chamber so as to be adjacent to a receptacle that is in the operative position with respect to said signal detector.
摘要:
The present invention relates to a system for measuring a signal emitted by the contents of each of a plurality of reaction receptacles comprising: a moving reaction receptacle carrier including a plurality of reaction receptacle stations, each of said reaction receptacle stations carrying two or more reaction receptacles; a signal measuring device constructed and arranged to measure the amount of a signal emitted by the contents of a reaction receptacle placed in operative proximity to said signal measuring device, said signal measuring device being positioned with respect to said reaction receptacle carrier such that reaction receptacles carried on said reaction receptacle carrier are successively moved into operative proximity to said signal measuring device as said reaction receptacle carrier moves the reaction receptacles; and a signal measuring device transport mechanism constructed and arranged to move said signal measuring device with respect to said reaction receptacle carrier, wherein said reaction receptacle carrier is controlled so as to successively present each said reaction receptacle station in a signal measuring position in which one of the reaction receptacles carried in the reaction receptacle station is in operative proximity to said signal measuring device and said signal measuring device transport mechanism is controlled so as to move said signal measuring device with respect to said reaction receptacle carrier to successively place said signal measuring device in operative proximity to each of the reaction receptacles carried in the reaction receptacle station moved into the signal measuring position.
摘要:
A system for processing the contents of multiple reaction receptacles to detennine the amount of a target nucleic acid present in one or more of the reaction receptacles or to ascertain the presence or absence of a target nucleic acid in one or more of the reaction receptacles, said system comprising: (A) at least one temperature-controlled incubator including an incubation chamber for receiving reaction receptacles therein and for exposing the reaction receptacles within said incubation chamber to controlled temperature conditions; (B) a nucleic acid quantification system constructed and arranged to determine the amount of a target nucleic acid within the reaction receptacles by: (1) periodically measuring the amount of a signal emitted by the contents of each reaction receptacle; and (2) quantifying the amount of the target nucleic acid present in each reaction receptacle based upon the periodic measurements; and (C) a nucleic acid detection system constructed and arranged to ascertain the presence of the target nucleic acid within the reaction receptacle by: (1) detecting a signal emitted by the contents each reaction receptacle; and (2) ascertaining the presence or absence of the target nucleic acid in the reaction receptacle based upon whether or not a signal above a threshold level is detected.