Disposable, integrated microfluidic cartridge and methods of making and using same

    公开(公告)号:US11174513B2

    公开(公告)日:2021-11-16

    申请号:US16405547

    申请日:2019-05-07

    申请人: ILLUMINA, INC.

    摘要: A stack of fluidics layers of a microfluidic cartridge for sequencing nucleic acid molecules includes a sequencing chamber layer having a sequencing chamber area configured for carrying out clustering and sequencing reactions, and a sequencing chamber bottom layer disposed under the sequencing chamber layer. The sequencing chamber bottom layer has an opening configured to hold an image sensor with the image sensor having an active area disposed under the sequencing chamber area. The sequencing chamber area spans substantially all of the active area of the image sensor. The stack of fluidics layers includes a flexible printed circuit board (PCB) layer under the sequencing chamber bottom layer, and a fluidics channels layer disposed under the flexible PCB layer. The fluidics channels layer includes fluidics channels that are configured to deliver reactants to the sequencing chamber area. The fluidics channels do not substantially overlap with the active area of the image sensor.

    Optical distortion correction for imaged samples

    公开(公告)号:US10909666B2

    公开(公告)日:2021-02-02

    申请号:US16192608

    申请日:2018-11-15

    申请人: Illumina, Inc.

    摘要: Techniques are described for dynamically correcting image distortion during imaging of a patterned sample having repeating spots. Different sets of image distortion correction coefficients may be calculated for different regions of a sample during a first imaging cycle of a multicycle imaging run and subsequently applied in real time to image data generated during subsequent cycles. In one implementation, image distortion correction coefficients may be calculated for an image of a patterned sample having repeated spots by: estimating an affine transform of the image; sharpening the image; and iteratively searching for an optimal set of distortion correction coefficients for the sharpened image, where iteratively searching for the optimal set of distortion correction coefficients for the sharpened image includes calculating a mean chastity for spot locations in the image, and where the estimated affine transform is applied during each iteration of the search.

    Balanced AC modulation for driving droplet operations electrodes

    公开(公告)号:US10857537B2

    公开(公告)日:2020-12-08

    申请号:US15739678

    申请日:2016-07-05

    申请人: ILLUMINA, INC.

    IPC分类号: B01L3/00

    摘要: A droplet actuator device for conducting droplet operations is provided that comprises a substrate defines a device channel to conduct droplet operations. Electrodes are arranged proximate to the substrate. A drive circuit is connected to the electrodes. The drive circuit generates an electrode drive signal to drive the droplet operations based on a reference waveform. The electrode drive signal is partitioned into an AC modulated drive cycle formed of sub-cycles. The electrode drive signal switches, during the sub-cycle, between at least first and second states where a degree of modulation with respect to the reference waveform forms a balanced modulation pattern.