摘要:
The invention relates to antibody characteristics used to design a whole blood Point of Care Thyroid Stimulating Hormone (TSH) immunoassay using an ELISA sandwich assay lacking one or more wash steps between the antigen capture, detection antibody addition and substrate introduction steps. This invention exhibits low cross reactivity with biologically similar interfering cross reacting species, such as Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH) and Chorionic Gonadotropin (CG).
摘要:
The invention is directed to enzyme immobilization compositions comprising: one or more enzymes, a humectant, an acrylic-based monomer, a water-soluble organic photo-initiator and a water-soluble acrylic-based cross-linker in a substantially homogeneous aqueous mixture. The invention is also directed to methods for forming sensors comprising such compositions and to apparati for forming arrays of immobilized layers on an array of sensors by dispensing such compositions onto a substrate.
摘要:
Provided herein is technology relating to testing biological samples and particularly, but not exclusively, to devices, systems, and kits for performing multiple, simultaneous real-time assays on a sample in a single-use disposable format. For example, the technology relates to an apparatus that finds use, for example, for point-of-care diagnostics, including use at accident sites, emergency rooms, in surgery, in intensive care units, as well as for non-medical applications.
摘要:
The present invention relates to automated devices and methods for the extraction of nucleic acids from cells, the amplification of segments of nucleic acid and the detection of nucleic acids, all in a convenient and portable manner. The invention is particularly suited for use in point-of-care medical diagnostic testing.
摘要:
The invention is directed to enzyme immobilization compositions comprising: one or more enzymes, a humectant, an acrylic-based monomer, a water-soluble organic photo-initiator and a water-soluble acrylic-based cross-linker in a substantially homogeneous aqueous mixture. The invention is also directed to methods for forming sensors comprising such compositions and to apparati for forming arrays of immobilized layers on an array of sensors by dispensing such compositions onto a substrate.
摘要:
The present invention relates to automated devices and methods for the amplification of segments of nucleic acid in a convenient and portable manner. A single-use nucleic acid amplification device for producing an amplicon includes a housing and an amplification chamber. The chamber includes an ingress with a first reversible seal, an egress with a second reversible seal, a sealable sample entry orifice, and a first wall forming a portion of the chamber. The first wall includes a thermally conductive material and includes an interior surface and an exterior surface. The exterior surface includes a heating circuit and a temperature sensor. The sample entry orifice permits a sample of nucleic acid to enter the amplification chamber. The ingress is connected to a first conduit along with a pneumatic pump and a fluid pouch. The egress is connected to a second conduit permitting egress of the amplicon from the amplification chamber.
摘要:
The invention relates to Thyroid Stimulating Hormone (TSH) immunoassays using an ELISA sandwich assay that employs scavenging or sacrificial beads for reducing interference caused by cross-reacting endocrine glycoprotein hormone analogues such as Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH) and Chorionic Gonadotropin (CG).
摘要:
The invention is directed to enzyme immobilization compositions comprising: one or more enzymes, a humectant, an acrylic-based monomer, a water-soluble organic photo-initiator and a water-soluble acrylic-based cross-linker in a substantially homogeneous aqueous mixture. The invention is also directed to methods for forming sensors comprising such compositions and to apparati for forming arrays of immobilized layers on an array of sensors by dispensing such compositions onto a substrate.
摘要:
The invention relates to a method for the extraction of nucleic acid from cells, the amplification of segments of nucleic acid using modified primers, and the detection of nucleic acids.
摘要:
The present invention relates to methods for the extraction of nucleic acids from cells, the amplification of segments of nucleic acid and the detection of nucleic acids, all in a convenient and portable manner. In one embodiment, a sample comprising cells containing nucleic acid is exposed to an aqueous mixture comprising a lytic reagent and one or more beads capable of binding the nucleic acid released from said cells to form a nucleic acid-bead complex. The nucleic acid-bead complex is passed through an immiscible liquid layer to separate the nucleic acid from the aqueous mixture. The one or more beads are magnetic, and the nucleic acid-bead complex is passed through and separated from the immiscible liquid layer with an applied magnetic field. The invention is particularly suited for use in point-of-care medical diagnostics testing.