Abstract: A device for the electrochemical detection of at least one biochemical molecule contained in a liquid from a group of predetermined biochemical molecules includes a holder (1) for taking up the liquid, with at least one reference electrode (RE) and at least one counterelectrode (GE) and a multiplicity of working electrodes (AE1, AE2, AE3). At least one working electrode is provided for the detection of each biochemical molecule, and is coated with a molecule that is complementary to the respective biochemical molecule, so that the biochemical molecules can be detected simultaneously. The device includes a potentiostat (P) for generating a predetermined voltage profile between the working electrodes and the reference electrode, a current/voltage converter (S1, S2, S3) connected downstream of each of the working electrodes for holding all of the working electrodes at the same potential, and a measurement device (Ad) for measuring the currents flowing through the working electrodes.

Abstract: The invention relates to a device (17) for detecting an analyte in a liquid having a multitude of electrodes (15), which are insulated from one another while being arranged on a first side (12) of an electrically non-conductive plate (10) that is impermeable to the liquid. Said electrodes (15) have, at least in part, an analyte-specific coating or analyte-specific molecules. Electrical conductors that pass through the plate (10) can, from a second side (14) of the plate, be electrically contacted and individually discharged. The coating or the molecules has/have a specific affinity to the analytes or to a substance formed due to the presence of the analyte. In addition, the device has no leakages.

Abstract: The invention relates to a device for checking the authenticity of an anti-forgery marking with colours which change depending on the angle of observation, comprising a) several first light sources, emitting in a given spectral range, whereby the light sources are different from each other with regard to the wavelength of the emission maximum thereof and the first light sources (1) are housed in a housing (5) such as to irradiate the surface (O), with the housing (5) placed thereon, at a given first angle (?1), b) a first means (2) for measuring the intensity of the light reflected from the surface (O) arranged at a second angle (?2) and c) a means (7) for the automatic comparison of measured intensities with the reference intensities stored for at least one given colour for each light source (1).

Abstract: The invention relates to a device for the electrochemical detection of at least one biochemical molecule—contained in a liquid—from a group of predetermined biochemical molecules, having a means (1) for taking up the liquid, said means having at least one reference electrode (RE) and at least one counterelectrode (GE) and also a multiplicity of working electrodes (AE1, AE2, AE3), at least one working electrode (AE1, AE2, AE3) being provided for the detection of each biochemical molecule, said working electrode being coated with a molecule that is complementary to the respective biochemical molecule, so that the biochemical molecules can be detected simultaneously, a potentiostat (P) for generating a predetermined voltage profile between the working electrodes (AE1, AE2, AE3) and the reference electrode (RE), a current/voltage converter (S1, S2, S3) being connected downstream of each of the working electrodes (AE1, AE2, AE3), the current/voltage converters (S1, S2, S3) holding all of the working electrodes

Abstract: The invention relates to a method for detecting and/or quantifying first biopolymers contained in a liquid involving the following steps: a) providing an electrode with a surface which is made of plastic and which is coated with second biopolymers that have a specific affinity to the first biopoymers to be detected; b) bringing the electrode into contact with the liquid; c) applying a predetermined voltage protocol to the electrode in order to effect a concentration of the first biopolymers on the second biopolymers; d) adding osmium tetroxide and bipyridine to the liquid, and; e) measuring the redox signal coming off the electrode.

Abstract: The invention relates to a method to increase the sensitivity of a carbon electrode for electrochemically detecting an analyte without electrochemically conditioning the carbon electrode, wherein the method comprises treating the carbon electrode with an ionic detergent which is in solution, wherein the detergent is not incorporated in a coating of the electrode.