Abstract: The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire. In one aspect, target-specific primer panels provide for the effective amplification of sequences of T cell receptor and/or B cell receptor chains with improved sequencing accuracy and resolution over the repertoire. Variable regions associated with the immune cell receptor are resolved to effectively portray clonal diversity of a biological sample and/or differences associated with the immune cell repertoire of a biological sample.

Abstract: A method for detecting a tandem duplication in an FLT3 gene of a sample, includes mapping reads corresponding to targeted regions of exons of the FLT3 gene to a reference sequence. A partially mapped read includes a mapped portion, a soft-clipped portion and a breakpoint. Analyzing the partially mapped reads intersecting a column of the pileup includes detecting a duplication in the soft-clipped portion by comparing the soft-clipped portion to the mapped portion adjacent to the breakpoint; determining an insert size of the duplication in the soft-clipped portion; and assigning the partially mapped read to a category based on the insert size. Categories correspond to insert sizes. The categories are filtered and converted into features corresponding to the column. The features corresponding to one or more columns representing a same insert are merged to determine a location and size of a tandem duplication.

Abstract: Dialysis devices include a frame defined by a plurality of sidewalls that are impermeable to a sample being dialyzed, a pair of dialysis membranes that are each associated with an opposing face of the plurality of sidewalls such that the plurality of sidewalls and the pair of dialysis membranes define a sample chamber, an outer shell surrounding at least a portion of the pair of dialysis membranes, and a cap selectively associated with the sample chamber. The cap can be selectively associated with the sample chamber via an attachment mechanism that is configured to provide aural and/or haptic feedback when the cap forms a tight association with the sample chamber. The cap can be a sensor cap having one or more probes for measuring at least one property of fluid inside and/or outside the sample chamber and a transmitter for transmitting data captured at the probe(s) to a destination device.

Abstract: The invention provides a passive fluidics circuit for directing different fluids to a common volume, such as a reaction chamber or flow cell, without intermixing or cross contamination. The direction and rate of flow through junctions, nodes and passages of the fluidics circuit are controlled by the states of upstream valves (e.g. opened or closed), differential fluid pressures at circuit inlets or upstream reservoirs, flow path resistances, and the like. Free diffusion or leakage of fluids from unselected inlets into the common outlet or other inlets at junctions or nodes is prevented by the flow of the selected inlet fluid, a portion of which sweeps by the inlets of unselected fluids and exits the fluidics circuit by waste ports, thereby creating a barrier against undesired intermixing with the outlet flow through leakage or diffusion.

Abstract: The present disclosure provides for compounds of Formula (I), its corresponding compounds of Formula (II) or salts thereof and their use as fluorogenic pH sensors.

Abstract: A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

Abstract: A thermal cycler system comprises a sample block configured to receive a sample holder configured to receive a plurality of samples; an adaptor configured to surround a periphery of the sample block; and a drip pan configured to surround a periphery of the adaptor. The drip pan comprises one or more ejector mechanisms and one or more openings, the one or more ejector mechanisms configured to respectively extend through the one or more openings into contact with the sample holder in a state of the sample holder received by the sample block and the adaptor surrounding the periphery of the sample block.

Abstract: The method of analyzing absorbance of one or more liquid samples (3) arranged in the wells (2) of a microplate (1) comprises the steps of setting a desired wavelength falling within the wavelength range of 380 nm-750 nm for absorbance measurement (101), illuminating the samples (3) using electromagnetic radiation having a bandwidth of at most 20 nm around the set wavelength (102), measuring radiant flux transmitted through each sample (3) (103), on the basis of measured radiant flux values, determining an absorbance value for each sample (3) (104), and visualizing the absorbance values on a display (12) as a matrix comprising a plurality of cells (23), each cell (23) corresponding to a well (2) of the microplate (1) (105). The set wavelength is used as an input for determining the visual properties of the cells (23).

Abstract: The present disclosure describes oligonucleotide-tethered nucleotides, methods of making them, and methods of using them. The oligonucleotide-tethered nucleotides comprise, in some embodiments, a nucleotide linked to an oligonucleotide of from about 3 to about 100 nucleotides in length. These oligonucleotide-tethered nucleotides can be used to label a plurality of different types of nucleic acids in a plurality of different situations with a known oligonucleotide, which can serve as a barcode in some embodiments. The resulting oligonucleotide-labeled nucleic acids oligo-nucleotides can be used in a variety of nucleic acid sequencing methods.

Abstract: The present disclosure provides apparatuses, systems, and methods for performing particle analysis through flow cytometry at comparatively high event rates and for gathering high resolution images of particles.

Abstract: An instrument for biological analysis includes a base, an excitation source, an optical sensor, an excitation optical system, and an emission optical system. The base is configured to receive a sample holder comprising a plurality of biological samples. The optical sensor is configured to receive emissions from the biological samples in response to the excitation source. The instrument may additionally include a sensor lens enclosed by a lens case and a focusing mechanism including a gear that engages the lens case, the focusing mechanism being accessible outside the enclosure for adjusting a focus. The may instrument further include a sensor aperture dispose along an emission optical path and a blocking structure disposed to cooperate with the sensor aperture such that none of the reflected radiation from an illuminated surface near the sample holder is received by the optical sensor that does not also reflect off another surface of the instrument.

Abstract: Disclosed are primer set compositions, methods and kits for human identification using the highly complex sequence locus, SE33 (ACTBP2) in single and multiplex PCR reactions. Additionally, disclosed are three newly discovered single nucleotide polymorphisms (SNPs) within the SE33 locus that can cause discordance seen as mobility shift or allelic dropout. Also disclosed are kits useful in human identification.

Abstract: A container includes a lower portion and a lid to connect with the lower portion. The lid includes a fluidic interface, a swing bar, and a counter structure disposed on an opposite side of the fluidic interface relative to the swing bar. The fluidic interface includes a first liquid port, a second liquid port, a gas port, and a seal ring disposed around the first liquid port, the second liquid port, and the gas port, the first liquid port disposed along a center axis of the container.

Abstract: A sequencing system includes an automated sequencing instrument adapted to determine variant calls for one or more extracted polynucleotide samples with a performance of at least 98.5% raw read accuracy and a run time in a range of 5 hours to 14 hours to determine variant calls for 4 extracted polynucleotide samples using a targeted assay with one DNA pool per sample and an average amplicon size in a range of 100 to 120 bases.

Abstract: Apparatuses, systems and methods for generating color video with a monochrome sensor include the acts of (i) selectively energizing each of a plurality of light sources in a sequence, (ii) capturing a monochrome image of the illuminated sample at a monochrome sensor at each stage of the sequence, and (iii) generating a color video from the monochrome images. The sequence can have a series of stages with each stage of the sequence corresponding to activation of a different wavelength of light from the light sources to illuminate a sample. Generating the monochrome video can include the acts of compiling a plurality of monochrome images captured at the monochrome sensor with a single light source into a series of monochrome video frames comprising the monochrome video.

Abstract: According to various embodiments described herein, a microfluidics-chip based purification device and system for Sanger-sequencing reactions is provided. The device and system allow for the introduction into a sequencing system of a cartridge containing purification technologies specific to the sequencing contaminants or sequencing method where the simplified purification solution of a cartridge allows automation of the sample purification process, reduced consumption of purification reagents, and consistency in sampling by reducing the sampling errors and artifacts. These various embodiments therefore solve the need for a microfluidics-chip-based, Sanger-sequencing reaction purification system for CE devices. The microfluidic chips described can be used as a PCR chip by reorganizing the on-chip reagents, reaction wells and work flow steps.