Abstract: Disclosed are methods, compositions and kits for contacting a sample containing a biological particle with a catalyst associated with or attached to a support. The biological particle may be cells and/or nuclei. The catalyst may be an enzyme configured to digest an extracellular molecule, such as an extracellular biological molecule, including extracellular nucleic acid molecules. In some examples, the biological particle is an aggregate of cells that is processed to single cells with a nuclease that is attached to a bead support. The bead and nuclease may subsequently be removed from the system. The single cells that result from the method can be used in single cell-based droplet systems for obtaining genome or transcriptome profiles of single cells.

Abstract: Disclosed are example embodiments of systems and methods for virtual try-on of articles of clothing. An example method of virtual try-on of articles of clothing includes selecting a garment from a pre-existing database. The method also includes loading a photo of a source model wearing the selected garment. Additionally, the method includes generating a semantic segmentation of the model image. The method also includes extracting the selected garment from the photo of the model. Additionally, the method includes determining a correspondence between a target model and the source model by performing a feature point detection and description of the target model and the source model, and performing feature matching and correspondence validation. The method also includes performing garment warping and alignment of the extracted garment. Additionally, the method includes overlaying and rendering the garment.

Abstract: Methods and systems for sample preparation techniques that allow amplification (e.g., whole genome amplification) and sequencing of chromatin accessible regions of single cells are provided. The methods and systems generally operate by forming or providing partitions (e.g., droplets) including a single biological particle and a single bead comprising a barcoded oligonucleotide. The preparation of barcoded next-generation sequencing libraries prepared from a single cell is facilitated by the transposon-mediated transposition and fragmentation of a target nucleic acid sequence. The methods and systems may be configured to allow the implementation of single-operation or multi-operation chemical and/or biochemical processing within the partitions.

Abstract: The present disclosure provides methods and systems for nucleic acid preparation and/or analysis. Nucleic acids may be derived from one or more cells. Nucleic acid preparation may comprise generating nucleic acid molecules of varying lengths. Nucleic acid analysis may comprise identifying nucleic acid sequence information with nucleosome position information.

Abstract: Disclosed are methods, compositions and kits for contacting a sample containing a biological particle with a catalyst associated with or attached to a support. The biological particle may be cells and/or nuclei. The catalyst may be an enzyme configured to digest an extracellular molecule, such as an extracellular biological molecule, including extracellular nucleic acid molecules. In some examples, the biological particle is an aggregate of cells that is processed to single cells with a nuclease that is attached to a bead support. The bead and nuclease may subsequently be removed from the system. The single cells that result from the method can be used in single cell-based droplet systems for obtaining genome or transcriptome profiles of single cells.

Abstract: The present disclosure provides compositions, methods, systems, and devices for polynucleotide processing and analyte characterization from a single cell. Such polynucleotide processing may be useful for a variety of applications. The compositions, methods, systems, and devices disclosed herein generally describe barcoded oligonucleotides, which can be bound to a bead, such as a gel bead, useful for characterizing one or more analytes.

Abstract: Provided herein are methods and systems for measuring secreted antibodies or other analytes from single cells. The methods disclosed herein include the use of capture agents and reporter agents that bind to secreted antibodies, wherein the capture agent and/or the reporter agent can be analyte-specific and/or barcoded, and beads in partitions (e.g., droplets or wells) to measure secreted antibodies on a single cell basis. Further described herein are methods comprising the use of hydrogel-encapsulated cells (e.g., cell beads) to measure secreted and/or cellular analytes from single cells.

Abstract: Methods and systems for sample preparation techniques that allow amplification (e.g., whole genome amplification) and sequencing of chromatin accessible regions of single cells are provided. The methods and systems generally operate by forming or providing partitions (e.g., droplets) including a single biological particle and a single bead comprising a barcoded oligonucleotide. The preparation of barcoded next-generation sequencing libraries prepared from a single cell is facilitated by the transposon-mediated transposition and fragmentation of a target nucleic acid sequence. The methods and systems may be configured to allow the implementation of single-operation or multi-operation chemical and/or biochemical processing within the partitions.

Abstract: The present disclosure provides compositions, methods, systems, and devices for polynucleotide processing and analyte characterization from a single cell. Such polynucleotide processing may be useful for a variety of applications. The compositions, methods, systems, and devices disclosed herein generally describe barcoded oligonucleotides, which can be bound to a bead, such as a gel bead, useful for characterizing one or more analytes including, for example, protein (e.g., cell surface or intracellular proteins) and chromatin (e.g., accessible chromatin).

Abstract: The present disclosure provides methods and systems for nucleic acid preparation and/or analysis. Nucleic acids may be derived from one or more cells. Nucleic acid preparation may comprise generating nucleic acid molecules of varying lengths. Nucleic acid analysis may comprise identifying nucleic acid sequence information with nucleosome position information.

Abstract: The present disclosure provides compositions, methods, systems, and devices for polynucleotide processing and analyte characterization. Such polynucleotide processing may be useful for a variety of applications, including analyte characterization by polynucleotide sequencing. The compositions, methods, systems, and devices disclosed herein generally describe barcoded oligonucleotides, which can be bound to a bead, such as a gel bead, useful for characterizing one or more analytes including, for example, protein (e.g., cell surface or intracellular proteins), genomic DNA, and RNA (e.g., mRNA or CRISPR guide RNAs). Also described herein, are barcoded labelling agents and oligonucleotide molecules useful for “tagging” analytes for characterization.

Abstract: Provided are methods for profiling cellular analytes of a cell by barcoding the cell in a combinatorial split and pool iterative process. In some instances, a cell bead may be generated from the cell, and the analytes therein barcoded in a combinatorial split and pool iterative process while the analytes are retained in the cell bead during iterative partitioning.

Abstract: Methods and systems for sample preparation techniques that allow amplification (e.g., whole genome amplification) and sequencing of chromatin accessible regions of single cells are provided. The methods and systems generally operate by forming or providing partitions (e.g., droplets) including a single biological particle and a single bead comprising a barcoded oligonucleotide. The preparation of barcoded next-generation sequencing libraries prepared from a single cell is facilitated by the transposon-mediated transposition and fragmentation of a target nucleic acid sequence. The methods and systems may be configured to allow the implementation of single-operation or multi-operation chemical and/or biochemical processing within the partitions.

Abstract: Provided are systems and methods for analyzing a single cell application or experiment. A set of control beads may be introduced to a biological sample and subjected to the single cell application. The control beads may be configured to mimic analytes in the biological sample, such as a cell or other analyte, and comprise one or more known sequences. The one or more known sequences may be identified to analyze the single cell application.

Abstract: Provided herein are methods and systems for measuring secreted cytokines or other analytes from single cells. The methods disclosed herein include the use of analyte-specific and/or barcoded binding agents (e.g., antibodies) and beads in partitions (e.g., droplets or wells) to measure such analytes on a single cell basis. Further described herein are methods comprising the use of hydrogel-encapsulated cells (e.g., cell beads) to measure secreted and/or cellular analytes from single cells.

Abstract: Provided in some aspects are methods for light-controlled in situ surface patterning of a substrate. Compositions such as nucleic acid arrays produced by the methods are also disclosed. In some embodiments, provided herein is photocontrollable hybridization, where oligonucleotides with photo-caged bases prevent hybridization of complementary nucleic acid strands. Uncaging of the oligonucleotides allows hybridization and/or ligation of nucleic acid molecules at the exposed area. A large diversity of barcodes can be created in molecules on the substrate via sequential rounds of light exposure, hybridization, and ligation.

Abstract: The present disclosure relates in some aspects to methods and compositions for assessing the target binding capacity of a binding molecule, such as an antigen binding molecule, e.g., a monoclonal antibody. In some embodiments, provided herein is a method of analyzing binding of a barcode-labeled antibody to a target antigen expressed by a cell, wherein cells expressing the candidate antigens are partitioned and wherein detection of the barcoded nucleic acid molecule is indicative of the binding between the antibody or antigen-binding fragment thereof and the candidate antigen or epitope of the cell.

Abstract: The present disclosure provides compositions, methods, systems, and devices for polynucleotide processing and analyte characterization. Such polynucleotide processing may be useful for a variety of applications, including analyte characterization by polynucleotide sequencing. The compositions, methods, systems, and devices disclosed herein generally describe barcoded oligonucleotides, which can be bound to a bead, such as a gel bead, useful for characterizing one or more analytes including, for example, protein (e.g., cell surface or intracellular proteins), genomic DNA, and RNA (e.g., mRNA or CRISPR guide RNAs). Also described herein, are barcoded labelling agents and oligonucleotide molecules useful for “tagging” analytes for characterization.

Abstract: The present disclosure relates to compositions and methods for generating capture probes on a substrate for identifying the location of analytes in a biological sample.

Abstract: The disclosure provides systems and methods for droplet processing. For example, a method can include providing a first droplet and a second droplet. In some cases, the first droplet may have a first concentration of a reagent and the second droplet may have a second concentration of the reagent. The second droplet may comprise a bead or a biological particle. The method can also include subjecting the first droplet and the second droplet to conditions sufficient to transfer the reagent from the first droplet to the second droplet, thereby decreasing the first concentration in the first droplet and increasing the second concentration in the second droplet.