Abstract: There is provided a method for the analysis of circulating antibodies comprising the steps: a) providing an analysis device comprising a substrate, and provided on said substrate at least one sample addition zone, at least one retaining zone, at least one sink, and at least one flow path connecting the sample addition zone, the retaining zone and the sink, wherein the flow path is open and comprises projections substantially vertical to the surface of said substrate and having a height (H), diameter (D) and reciprocal spacing (t1, t2) such that lateral capillary flow of said sample is achieved and such that cells can flow through the projections, wherein said retaining zone comprises at least one affinity binding means to which cell structures are bound, b) adding at least one sample to a sample addition zone, and c) reading a result, wherein circulating antibodies directed against cell structures are determined.

Abstract: A two step lateral flow assay method for identifying IgE antibodies in a sample comprises applying a sample to a sample port of a device, wherein the device is adapted to deliver the sample to a lateral flow matrix having a plurality of IgE antigen species immobilized at respective positions at a first location; allowing the sample to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species to a second location downstream of the first location; and, after a predetermined period of time, applying liquid buffer to the lateral flow matrix to mobilize labeled reagent which is adapted to bind anti-IgE antibody and which is dried on the lateral flow matrix at a location upstream of the sample port delivery of the sample to the lateral flow matrix, and allowing labeled reagent mobilized by the liquid buffer to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species and bind with any IgE antibody bound to the immobilized IgE antigen species, a

Abstract: An analysis device having at least one sample addition zone, at least one sink, and at least one flow path connecting the at least one sample addition zone and the at least one sink. The at least one flow path includes projections substantially vertical to the surface of the substrate and having a height (H), diameter (D) and reciprocal spacing (t1, t2) such that lateral capillary flow of a liquid sample is achieved. The device includes at least two reaction zones in series, wherein each reaction zone is adapted to facilitating measurement of a response originating from one and the same analyte, and wherein the reaction zones are positioned to allow calculation of the concentration of at least one analyte. Advantages include that a more accurate value can be calculated, variations are reduced, and an estimation of the uncertainty of the response can be calculated.

Abstract: A two step lateral flow assay method for identifying IgE antibodies in a sample comprises applying a sample to a sample port of a device, wherein the device is adapted to deliver the sample to a lateral flow matrix having a plurality of IgE antigen species immobilized at respective positions at a first location; allowing the sample to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species to a second location downstream of the first location; and, after a predetermined period of time, applying liquid buffer to the lateral flow matrix to mobilize labeled reagent which is adapted to bind anti-IgE antibody and which is dried on the lateral flow matrix at a location upstream of the sample port delivery of the sample to the lateral flow matrix, and allowing labeled reagent mobilized by the liquid buffer to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species and bind with any IgE antibody bound to the immobilized IgE antigen species, a

Abstract: Lateral flow assay devices and methods for detecting an analyte in a sample which comprises a plurality of nonspecific binding pair members are adapted for two step determinations.

Abstract: A conjugate, for use as a detection reagent in an immunoassay, is based on a hydrophilic monodisperse macromolecule, i.e. a macromolecule having a substantially uniform size and shape, the macromolecule forming a practically useful and manageable carrier, to which carrier at least one binding entity and at least one label are bound.

Abstract: An analysis device having at least one sample addition zone, at least one sink, and at least one flow path connecting the at least one sample addition zone and the at least one sink. The at least one flow path includes projections substantially vertical to the surface of the substrate and having a height (H), diameter (D) and reciprocal spacing (t1, t2) such that lateral capillary flow of a liquid sample is achieved. The device includes at least two reaction zones in series, wherein each reaction zone is adapted to facilitating measurement of a response originating from one and the same analyte, and wherein the reaction zones are positioned to allow calculation of the concentration of at least one analyte. Advantages include that a more accurate value can be calculated, variations are reduced, and an estimation of the uncertainty of the response can be calculated.

Abstract: There is provided a method for the analysis of circulating antibodies comprising the steps: a) providing an analysis device comprising a substrate, and provided on said substrate at least one sample addition zone, at least one retaining zone, at least one sink, and at least one flow path connecting the sample addition zone, the retaining zone and the sink, wherein the flow path is open and comprises projections substantially vertical to the surface of said substrate and having a height (H), diameter (D) and reciprocal spacing (t1, t2) such that lateral capillary flow of said sample is achieved and such that cells can flow through the projections, wherein said retaining zone comprises at least one affinity binding means to which cell structures are bound, b) adding at least one sample to a sample addition zone, and c) reading a result, wherein circulating antibodies directed against cell structures are determined.

Abstract: Lateral flow assay devices and methods for detecting a first member of a specific binding pair in a sample which comprises a plurality of nonspecific binding pair members are adapted for two step determinations.

Abstract: The present invention relates to a solid phase assay device comprising a multi-spot detection zone, and to use thereof in immunochromatographic assays. More precisely, the invention relates to a device for determining analytes in an aqueous sample comprising: an elongate flow matrix (6) allowing lateral transport of fluid therethrough, wherein said matrix comprises a sample application zone (3) and downstream thereof, a detection zone (8) having immobilised capture agents capable of directly or indirectly binding to said analytes, wherein said analytes are detected by allowing a labelled second binding agent to bind directly or indirectly to the analytes. The device is characterised in that the immobilised capture agents are distributed in the detection zone (8) as a plurality of small spots, thereby permitting multi-analyte and/or multi-specificity detection.