Method for correcting interference of multicolor fluorescence channels

    公开(公告)号:US11579086B2

    公开(公告)日:2023-02-14

    申请号:US17496262

    申请日:2021-10-07

    Abstract: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.

    Method for Analyzing digital PCR Data Using Multicolor Fluorescence Reader

    公开(公告)号:US20220026363A1

    公开(公告)日:2022-01-27

    申请号:US17496285

    申请日:2021-10-07

    Abstract: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.

    Method for Correcting Interference of Multicolor Fluorescence Channels

    公开(公告)号:US20220026362A1

    公开(公告)日:2022-01-27

    申请号:US17496262

    申请日:2021-10-07

    Abstract: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.

    Method for analyzing digital PCR data using multicolor fluorescence reader

    公开(公告)号:US11549887B2

    公开(公告)日:2023-01-10

    申请号:US17496285

    申请日:2021-10-07

    Abstract: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.

    Multicolor fluorescence reader with dual excitation channels

    公开(公告)号:US11320375B2

    公开(公告)日:2022-05-03

    申请号:US16894612

    申请日:2020-06-05

    Abstract: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.

    Multicolor Fluorescence Reader with Dual Excitation Channels

    公开(公告)号:US20210381980A1

    公开(公告)日:2021-12-09

    申请号:US16894612

    申请日:2020-06-05

    Abstract: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.

    Methods and devices for performing real time digital PCR

    公开(公告)号:US11761032B2

    公开(公告)日:2023-09-19

    申请号:US16504065

    申请日:2019-07-05

    CPC classification number: C12Q1/6851 B01L3/5027 B01L7/52 C12Q1/6825

    Abstract: Disclosed are devices that can perform multiple independent digital PCRs with real-time monitoring capability. The device comprises multiple PCR mini-reactors thermally coupled with its own temperature control element, a detection unit, and a motor for moving the PCR mini-reactors or the detection unit. The real-time digital PCR device can simultaneously perform multiple digital PCRs, generate amplification curves of thousands and millions of individual PCR processes, evaluate binary readouts based on the kinetic properties of individual amplification curves, and identify different target sequences based on the amplification curves. Methods of using the real-time digital PCR device to detect target nucleic acids and count circulating tumor cells are also disclosed.

    Methods for Analyzing Real Time Digital PCR Data

    公开(公告)号:US20220028490A1

    公开(公告)日:2022-01-27

    申请号:US17497348

    申请日:2021-10-08

    Abstract: Disclosed are methods for analyzing digital PCR data using real time measurements during the amplification cycles of the dPCR. An endpoint threshold is used to preliminarily separate positive amplifications from negative amplifications for a plurality of microreactions in the dPCR. The preliminary positive amplifications are further evaluated based on properties of the amplification curves of the microreactions so as to remove false positives.

    Methods and Devices for Performing Real Time Digital PCR

    公开(公告)号:US20220025450A1

    公开(公告)日:2022-01-27

    申请号:US17497628

    申请日:2021-10-08

    Abstract: Disclosed are devices that can perform multiple independent digital PCRs with real-time monitoring capability. The device comprises multiple PCR mini-reactors thermally coupled with its own temperature control element, a detection unit, and a motor for moving the PCR mini-reactors or the detection unit. The real-time digital PCR device can simultaneously perform multiple digital PCRs, generate amplification curves of thousands and millions of individual PCR processes, evaluate binary readouts based on the kinetic properties of individual amplification curves, and identify different target sequences based on the amplification curves. Methods of using the real-time digital PCR device to detect target nucleic acids and count circulating tumor cells are also disclosed.

    Methods for Analyzing Real Time Digital PCR Data

    公开(公告)号:US20210350874A1

    公开(公告)日:2021-11-11

    申请号:US17316666

    申请日:2021-05-10

    Abstract: Disclosed are methods for analyzing digital PCR data using real time measurements during the amplification cycles of the dPCR. An endpoint threshold is used to preliminarily separate positive amplifications from negative amplifications for a plurality of microreactions in the dPCR. The preliminary positive amplifications are further evaluated based on properties of the amplification curves of the microreactions so as to remove false positives.

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