G01N33/54388

ANTI-RS VIRUS-RECOGNIZING ANTIBODY, AND IMMUNOASSAY METHOD AND IMMUNOASSAY APPARATUS USING THE ANTIBODY
20230002479 · 2023-01-05 · ·

Provided are an anti-RS virus antibody with high sensitivity and a test reagent using the antibody.

An anti-RS virus N protein monoclonal antibody, comprising a heavy chain variable region consisting of the amino acid sequence as set forth in SEQ ID NO: 1, and a light chain variable region consisting of the amino acid sequence as set forth in SEQ ID NO: 2, 3 or 4, or an antigen-binding fragment thereof.

METHODS AND COMPOSITIONS FOR LATERAL FLOW ANALYTE ASSAYS

It is an object of the present invention to provide improved lateral flow test devices that can provide sensitive and accurate quantitative test results, and methods for the manufacture thereof.

METHODS FOR ENHANCING SPECIFICITY AND SENSITIVITY OF GROUP A STREPTOCOCCUS IMMUNOASSAY
20230003729 · 2023-01-05 ·

The present disclosure provides methods and kits for detecting Group A Streptococcus in biological samples. More particularly, the present disclosure provides methods for enhancing the specificity and sensitivity of Group A Streptococcus immunoassays by including N-propionyl-D-glucosamine, 2-N-butanoyl-D-glucosamide, Bis-(2-(D-2-deoxy-glucosaminyl))-PEG3-amide, m-PEG4-glucosamine, m-PEG6-glucosamine, or m-PEG10-glucosamine. The methods and kits disclosed herein are thus useful for reliable and early diagnosis of streptococcal infections in a subject.

Lateral flow assay device
11519910 · 2022-12-06 · ·

The present invention provides a diagnostic kit for detecting the presence or quantity of one or more test analytes within a test sample taken from a body surface of a mammal, the diagnostic kit comprising: a separate insert for a lateral flow device (200, 411) comprising a membrane (201) fixed to a rigid support (202) and, the separate insert being configured to obtain the test sample; a lateral-flow assay device configured (300, 400) to accept the separate insert (200, 411); a securing member (210) configured to releasably attach (211) the separate insert to a body surface of a mammal (213); wherein the securing member (210) comprise an expandable layer (212) configured to apply pressure to the separate insert (200, 411) thereby pressing the separate insert (200, 411) against the body surface of the mammal (213).

Method for detecting coliform bacteria contained in milk

The object is to provide a lysis method, lysis treatment solution, detection method using an immunochromatographic device, and detection kit comprising an immunochromatographic device for detecting whether causative bacteria of mastitis are coliform bacteria or not by using milk of a livestock animal. There is provided a method for lysing coliform bacteria, which comprises the step of mixing a lysis agent containing a lytic enzyme, and at least one kind of anionic surfactant, and preferably further containing at least one kind of nonionic surfactant, with milk obtained form a livestock animal to lyse coliform bacteria existing in the milk. The lytic enzyme is preferably lysozyme.

System and method for collection and dissemination of biologic sample test results data

A method for collection and dissemination of biologic data, comprising collecting at least one biologic sample by a testing device including thereon an alignment target and including a plurality of immunoassay test strips, wherein the at least one biologic sample contacts a sample pad on at least one of the plurality of immunoassay test strips, assigning correlative values as test results, wherein each test performed on the biologic sample is assigned a different correlative value, receiving the test results at a server disposed on a network, wherein the server has configured thereon a database, assigning a unique identification to the biologic sample, storing the unique identification in the database, storing the test results in the database in association with the unique identification of the biologic sample, and providing access to the database to healthcare organizations for analysis of the test results.

Immunochromatographic device, immunochromatographic kit and immunochromatographic detection method

According to an immunochromatographic device for detecting a substance to be detected contained in a detection target in an analyte which is characterized in that a nitrous acid compound containing member having a part containing a nitrous acid compound; a labeling substance retaining member having a labeling substance containing part; an acid anhydride containing member having a part containing an acid anhydride having vapor pressure at 25° C. of 5×10.sup.−2 Pa or less; and a chromatography medium member having a detection part are arranged in a manner that a sample develops in the members in this order, the storage stability can be improved; detection with high sensitivity is possible; and the complexity of production can be reduced.

LATERAL FLOW IMMUNOASSAY DEVICES AND METHODS OF USING SAME
20230023292 · 2023-01-26 ·

Disclosed herein are devices, systems, methods and kits for performing immunoassay tests on a sample. The immunoassay devices may be used in conjunction with diagnostic reader systems for obtaining a sensitive read-out of the immunoassay results. The immunoassay devices may be especially suited for the detection of at least a first analyte and a second analyte in a sample. The immunoassay devices and methods may utilize a competitive binding-like assay and a sandwich binding assay to detect analytes in a sample.

SYSTEM COMPRISING AN APPARATUS AND A CARTRIDGE FOR ASSAY MEASUREMENT

An apparatus (1) for detecting the presence and/or the quantity of a target component in a biological fluid in an integrated assay cartridge (52) of predetermined configuration, the assay cartridge comprising a capture component (22) at a predetermined location in the assay cartridge, the apparatus comprising: a detector (12)for detecting the amount of light scattered, transmitted or emitted by the sample to provide an indication of the presence and/or the quantity of the target component within the sample; three location positions (30), the three positions defining a location along the optical path of the detector on which to locate the cartridge of a predetermined size; wherein location positions are configured such that the capture component of the assay cartridge is located, in use, at the focal plane of the detector. Measures to ensure quality control may also be provided.

SELECTIVE WHITE BLOOD CELL LYSIS FOR IMMUNOASSAY SYSTEMS
20230026491 · 2023-01-26 ·

A test strip with selective white blood cell (WBC) lysis for release of WBC contents and the capture and holding of red blood cells (RBC), allowing for fast clearance and result interpretation and more accurate results at early time points due to the lack of red color interference caused by background red heme color of lysing of RBCs. The removal of the red color interference enhances both visual and digital interpretation of test strips, such as test strips of an immunoassay test. The test strip enhances the detection of both intracellular proteins of WBCs and extracellular proteins of RBCs simultaneously such as MxA and CRP, MxA and PCT, MxA and HNL, and MxA and IL-6, MxA and myeloid cells (sTREM-1), MxA and angiopoietin 2, MxA and vascular endothelial growth factor (VEGF) or its soluble vascular endothelial growth factor receptor-1 (sVEGFR1), MxA and heparin binding protein (HBP) or other combinations.