Abstract: A method of infrared-optically determining the concentration of at least one analyte in a liquid sample, wherein the infrared absorption of the analyte(s) is measured and compared with a standard, which is characterized in that the liquid sample is sampled with an infrared radiation of high light density, wherein the infrared radiation has a sharp intensity peak at at least one wave length, as well as an arrangement for the infrared-optical transmission determination of the concentration of at least one analyte in a liquid sample, with a sample cuvette flowed through by the sample liquid, the sample cuvette being arranged in the radiation path between a radiation source for providing the infrared radiation and a detector for measuring the infrared absorption induced by the analyte in the sample cuvette.

Abstract: A method of producing a device for simultaneously carrying out an electrochemical and a topographical near field microscopy is disclosed, which is characterized in that a probe suitable for topographic near field microscopy is covered by a conductive material, the conductive material is covered by an insulating layer, and the conductive material and the insulating layer are removed in the region of the immediate tip of the probe.

Abstract: A device for simultaneously carrying out an electro-chemical and a topographical near field microscopy is described, which device comprises a region for topographical near field measurement and a region for electrochemical near field measurement, with the region for topographical near field measurement extending completely as far as to the immediate tip of the arrangement, characterized in that the region for electrochemical near field measurement starts at a defined distance from the immediate tip.

Abstract: The invention involves an array to couple a live cell, in particular a nerve cell, with an electronic circuit to pick up directly or indirectly electrically active cell signals and/or to electronically stimulate the cell, with a passive electronic element (C1, R1), where one terminal is connected to a reference potential (M), and the other terminal is connected to a switched output of an electronic switch (T1) the input of which can be connected to a signal or voltage source (point B), where an electrically conducting contact element (1) can be brought into contact with the cell (2) and is connected between the output of the electric switch (point P) and the associated terminal of the passive electronic component (C1, R1).

Abstract: The invention involves an array to couple a live cell, in particular a nerve cell, with an electronic circuit to pick up directly or indirectly electrically active cell signals and/or to electronically stimulate the cell, where the coupling array comprises a transistor (T1) with a double gate, where one of the gates is designed as a control gate (CG) to select the transistor via external control signals, and the other gate (FG) is connected to an electrically conducting contact element (1) which may be brought into contact with the cell (2) to register changes in the electric properties of the cell.

Abstract: A method of infrared-optically determining the concentration of at least one analyte in a liquid sample, wherein the infrared absorption of the analyte(s) is measured and compared with a standard, which is characterized in that the liquid sample is sampled with an infrared radiation of high light density, wherein the infrared radiation has a sharp intensity peak at at least one wave length, as well as an arrangement for the infrared-optical transmission determination of the concentration of at least one analyte in a liquid sample, with a sample cuvette flowed through by the sample liquid, the sample cuvette being arranged in the radiation path between a radiation source for providing the infrared radiation and a detector for measuring the infrared absorption induced by the analyte in the sample cuvette.

Abstract: Disclosed is a method of infrared-optically determining the concentration of at least one analyte in a liquid sample, wherein the infrared absorption of the analyte(s) is measured and compared with a standard, which is characterized in that the liquid sample is sampled with an infrared radiation of high light density, wherein the infrared radiation has a sharp intensity peak at at least one wave length, as well as an arrangement for the infrared-optical transmission determination of the concentration of at least one analyte in a liquid sample, with a sample cuvette flowed through by the sample liquid, the sample cuvette being arranged in the radiation path between a radiation source for providing the infrared radiation and a detector for measuring the infrared absorption induced by the analyte in the sample cuvette.