Abstract: The present invention is related to analytical platforms and methods performed therewith for generating qualitative and/or quantitative protein expression profiles, in particular differential protein expression profiles, of cell populations comprising: generating lysates of one or more populations of cells, the lysates comprising a plurality of proteins expressed by the respective cell populations, providing an essentially planar solid support, depositing at discrete sites small quantities of the cell lysates, in diluted or undiluted form directly on said solid support or on an adhesion-promoting layer applied on said solid support, thereby creating one or more one- or two-dimensional arrays of discrete measurement areas on said solid support, applying a number of binding reagents as specific binding partners for the proteins contained in cell lysates in discrete measurement areas and to be detected and, if adequate, one or more detection reagents on said one or more arrays of measurement areas, the binding r

Abstract: A method of detecting a target polynucleotide using a solution phase nucleic acid sandwich assay, wherein the solid support is an optical planar waveguide, and the label is detected by measuring the luminescence that is excited in the evanescent field of the waveguide-A fully automated system may be used. The method may be of use in detecting nucleic acids associated with disease at very low concentrations.

Abstract: The invention relates to a kit for assay development and for carrying out a plurality of analyses, comprising a carrier substrate and a placement body jointly forming an arrangement of a plurality of sample compartments comprising said carrier substrate as a base plate, in addition to a plurality of immobilized binding partners for the detection of one or more analytes in one or more samples in a bioaffinity assay, said binding partners being arranged and immobilized on the carrier substrate inside the sample containers always in two-dimensional arrays of discrete measuring areas, wherein always at least one measuring area of an array or a partial surface inside an array or sample compartment, respectively, is provided on the carrier substrate for referencing purposes, and the surface density of the immobilized binding partners, in relation to the surface of the measurement areas, is less than the surface density of a full, i.e. extensive, monolayer of said binding partners.

Abstract: The present invention is related to an analytical platform and a method performed therewith for the analysis of a multitude of “nature-identical” samples for analytes which are contained therein and are of biological relevance as binding partners in specific binding reactions, wherein said samples or dilutions of said samples of the same relative molecular composition as the original samples, with the analytes to be determined contained therein, as a first plurality of specific binding partners, are deposited in discrete measurement areas in at least one one- or two-dimensional array of measurement areas on an evanescent field sensor platform as a solid support without a change in the relative molecular composition, compared with the original relative molecular composition of the sample, one or more tracer compounds as a second plurality of specific binding partners, for the specific determination of analytes out of the first plurality of specific binding partners contained in the samples, are brought into co

Abstract: The present invention is related to an analytical platform and a method performed therewith for the analysis of multiple samples for analytes which are contained therein and are of biological relevance as binding partners in specific binding reactions, wherein

Abstract: The invention relates to a biosensor for the diagnosis of plant diseases, which is suitable for recognising plant diseases, as well as its use in the course of this process, as well as a sensor platform as a component of a biosensor for the diagnosis of plant diseases, whereby the biosensor as an analytical measuring unit consists of the sensor platform according to the invention, which may be modified and on which immobilised biochemical recognition elements are immobilised, whilst in close contact with an appropriate transducer arrangement. The said biochemical recognition elements are structures which are specific for the plant pathogens to be evaluated, and therefore allow individual detection of these plant pathogens to be carried out in the course of the diagnostic process according to the invention.

Abstract: A device has a planar optical waveguide, including a transparent carrier (40) and a wave-guiding layer (41), wherein the waveguide at least has a diffractive element (42) for coupling excitation radiation into the wave-guiding layer. Located on the wave-guiding layer is a further, tightly sealing layer (43) made from a material which, at least at the support surface, is transparent both to the excitation radiation and to the evanescently excited radiation at least to the penetration depth of the evanescent field, and which, for an analysis sample, has, at least in a partial region of the guided excitation radiation, a cavity (45) which is open to the upper side or a cavity (6) which is closed to the upper side and connected by means of an inlet channel (2) and an outlet channel (3).

Abstract: A device comprising a planar optical waveguide, consisting of a transparent carrier (40) and a wave-guiding layer (41), wherein the waveguide at least has a diffractive element (42) for coupling excitation radiation into the wave-guiding layer, and there is located on the wave-guiding layer a further, tightly sealing layer (43) made from a material which, at least at the support surface, is transparent both to the excitation radiation and to the evanescently excited radiation at least to the penetration depth of the evanescent field, and which, for an analysis sample, has, at least in a partial region of the guided excitation radiation, a cavity (45) which is open to the upper side or a cavity (6) which is closed to the upper side and connected by means of an inflow channel (2) and an outflow channel (3), the depth of the cavity corresponding at least to the penetration depth of the evanescent field, and wherein the diffractive element (42) is fully covered by the material of the layer (43) at least in the co

Abstract: A device comprising a planar optical waveguide, consisting of a transparent carrier (40) and a wave-guiding layer (41), wherein the waveguide at least has a diffractive element (42) for coupling excitation radiation into the wave-guiding layer, and there is located on the wave-guiding layer a further, tightly sealing layer (43) made from a material which, at least at the support surface, is transparent both to the excitation radiation and to the evanescently excited radiation at least to the penetration depth of the evanescent field, and which, for an analysis sample, has, at least in a partial region of the guided excitation radiation, a cavity (45) which is open to the upper side or a cavity (6) which is closed to the upper side and connected by means of an inflow channel (2) and an outflow channel (3), the depth of the cavity corresponding at least to the penetration depth of the evanescent field, and wherein the diffractive element (42) is fully covered by the material of the layer (43) at least in the co

Abstract: A device for combined bioaffinity assay and electrophoretic separation is provided, which comprises a capillary system having two stages, a first stage in which bioaffinity interactions of analyte molecules and molecular recognition elements are performed, and a second stage, in which electrophoretic separation of the analyte molecules and subsequent detection of the separated species is accomplished. Within the first capillary stage the molecular recognition elements are attached and immobilized to the inside capillary wall, for example, by adsorption or by covalent binding to the capillary material. The method for combined bioaffinity assay and electrophoretic separation comprises flowing an analyte through a capillary system having two stages. In a first capillary stage the analyte molecules are captured by respective molecular recognition elements present in that stage.