Abstract: The invention relates to an electrochemical method and device for detecting and/or quantifying sulphur dioxide (S(¾) in its various uncomplexed forms (molecular and ionic) in an aqueous or hydroalcoholic liquid food product. It also relates to a method for regenerating an electrode, the active surface of which is composed of gold. The electrochemical method for detecting and/or quantifying sulphur dioxide (SO2) in its uncomplexed (free) forms in an aqueous or hydroalcoholic liquid food product of the invention comprises: a) introducing into the liquid food product a measuring electrode, the active surface of which, in contact with the liquid food product is entirely made of gold, b) measuring the variation of the current produced by the oxidisation of the free SC½, present in the food liquid, during a potential sweep by cyclic voltammetry. In particular, the invention is used for measuring free S(¾).

Abstract: The present invention relates to a novel real-time multiplexed, multi-color BRET assay and apparatus for studying protein-protein interactions and determining various biological activities in live cells, wherein said assay is capable of capturing multiple signals simultaneously from a single sample and simultaneously over one or several wells. The real-time multiplexed, multi-color BRET assay is particularly useful for drug-screening, protein interactions, change of conformation of any channel or receptor subunits within live cells in response to potential drug candidates, thereby indicating activation or inhibition of said channel or receptor.

Abstract: The present inventor relates to an electrochemical device for measuring the redox state of the skin, comprising at least one working electrode, such as a microelectrode, a counter electrode, and a reference electrode, said electrodes all being fixed into a single support intended to allow each of said electrodes to be simultaneously brought into contact with the surface of the skin to be tested, the electrodes being connected, on the one hand, to a means for imposing a defined voltage between the working electrode and the reference electrode, such as a potentiostat, and, or the other hand, to a device for measuring the intensity of the current generated at the working electrode by the detection of redox species. The invention also related to a method of measuring the redox state of the skin.

Abstract: The present inventor relates to an electrochemical device for measuring the redox state of the skin, comprising at least one working electrode, such as a microelectrode, a counter electrode, and a reference electrode, said electrodes all being fixed into a single support intended to allow each of said electrodes to be simultaneously brought into contact with the surface of the skin to be tested, the electrodes being connected, on the one hand, to a means for imposing a defined voltage between the working electrode and the reference electrode, such as a potentiostat, and, or the other hand, to a device for measuring the intensity of the current generated at the working electrode by the detection of redox species. The invention also related to a method of measuring the redox state of the skin.