Glycan Sample Preparation
    62.
    发明申请

    公开(公告)号:US20190227086A1

    公开(公告)日:2019-07-25

    申请号:US16277218

    申请日:2019-02-15

    Abstract: The present teachings relate to methods, systems, and kits for the preparation, purification and/or analysis of a glycan or glycoconjugate, and specifically to a magnetic bead based sample preparation protocol that can enable full automation and reduced sample preparation time relative to current methods of glycoanalysis. In some aspects, the sample preparation protocol can provide for glycoconjugate capture, glycan release, fluorescent derivatization, and glycan purification for subsequent capillary electrophoresis, liquid chromatography, or other glycoanalytical method without requiring time-consuming sample preparation steps such as centrifugation or vacuum-centrifugation.

    Diluent Preparation Modules and Units
    63.
    发明申请

    公开(公告)号:US20190154718A1

    公开(公告)日:2019-05-23

    申请号:US16198366

    申请日:2018-11-21

    Inventor: Craig R. Veiner

    Abstract: Certain types of automated medical analysis equipment are used to analyze blood or other fluids. The equipment may thus use various diluents or reagents that allow the blood or other fluids to be run through the analysis equipment for analysis and data collection. Disclosed is a diluent preparation module that combines purified water and reagent concentrate for use by this equipment. Also disclosed is a diluent preparation unit that combines more than one diluent preparation modules for redundancy and back-up purposes. Also disclosed are systems for supplying the Diluent prepared by the diluent preparation module or diluent preparation unit to one or more analytic instruments.

    RADIATED LIGHT FILTERING FOR A FLOW CYTOMETER

    公开(公告)号:US20190101438A1

    公开(公告)日:2019-04-04

    申请号:US16152643

    申请日:2018-10-05

    Abstract: A filter mask for use in a flow cytometer includes light blocking features and light passing apertures. The flow cytometer operates to evaluate one or more characteristics of a sample by illuminating the sample and a carrier fluid and collecting light rays that are radiated from the sample and the carrier fluid. The light rays are passed through the filter mask. The light blocking features of the filter mask are arranged to selectively block radiated light at certain radiation angles, while permit light rays having other radiation angles to pass therethrough. A sensor analyzer receives the light rays that pass through to evaluate at least one characteristic of the sample. The light rays can also be separated into two beams, which can be independently filtered using different filter masks. The results can then be compared to provide even more information regarding characteristics of the sample.

    COMPOUND OPTICAL FLOW CELLS AND METHOD OF MANUFACTURE AND USE

    公开(公告)号:US20180188154A1

    公开(公告)日:2018-07-05

    申请号:US15714473

    申请日:2017-09-25

    Abstract: An improved optical flow cell adapted for use in a flow cytometer for differentiating formed bodies (e.g., blood cells) in liquid suspensions. Preferably manufactured by assembling, aligning, and optically joining at least two elements made from transparent material, the improved flow cell has a seamless internal flow channel of preferably non-circular cross-section in a cylindrical first element through which prepared samples can be metered and an independent second element having an external envelope suited to acquisition of optical parameters from formed bodies in such suspensions, the second element being conforming and alignable to the first element so that non-axisymmetric refractive effects on optical characterizing parameters of formed bodies passing through the flow channel in the first element may be minimized before the two elements are optically joined and fixed in working spatial relationship. Preferably, such first element is formed by a glass-drawing process in which a relatively large glass preform having a rectilinear internal channel of a desired cross-sectional shape is heated and drawn to achieve a desired cross-sectional area of reduced size. Preferably, such second element is provided by through-boring a suitable commercial optical component to conform to such first element. Also disclosed are preferred methods for differentiating formed bodies using the flow cell of the invention.

    COMPOSITION FOR HIGH STRINGENCY CELL TREATMENT AND ANTIGEN RETRIEVAL

    公开(公告)号:US20180172564A1

    公开(公告)日:2018-06-21

    申请号:US15899072

    申请日:2018-02-19

    CPC classification number: G01N1/30

    Abstract: The present invention relates to a cell treatment composition for the permeabilization of fixed blood cells, to the use of said composition, to a method for the treatment of a biological sample comprising fixation of said sample and subsequently contacting said biological sample with said cell treatment composition. The invention further relates and to a kit comprising said cell treatment composition.

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