Abstract: A time-resolved multi-gate ion sensitive field effect transducer, including a silicon layer, a P-doped region in the silicon layer and a first electrode in electric connection with the P doped region, a N-doped region in the silicon layer and a second electrode in electric connection with the N-doped region, a general channel area defined in the silicon layer between the P-doped and N-doped regions, a first gate structure forming a sensing area, the first gate structure including a first insulating layer on the silicon layer, the sensing area configured to receive an electrolyte solution, and a third electrode at the sensing area configured to be in contact with the electrolyte solution, the first gate structure configured to generate a first channel area in the silicon layer for providing a first potential barrier, and a second gate structure configured to generate a second channel area in the silicon layer for providing a second potential barrier.

Abstract: The invention relates to a viscosimetric sensor for monitoring an analyte level in a patient or in body fluids ex vivo. In particular, the invention relates to a sensor for monitoring analytes, such as glucose levels in a patient. The sensor comprises at least two hermetically closed chambers (2a, 2b), including an activation chamber and a measuring chamber, containing a sensitive fluid (3), the chambers communicating with each other through at least one microchannel (5), and a semi-permeable barrier (4) allowing the analyte to enter or leave the chambers. Each said chamber comprises at least one flexible membrane (6, 7) configured for antagonistic variations of the volume of the chambers.

Abstract: The invention relates to a viscosimetric sensor for monitoring an analyte level in a patient or in body fluids ex vivo. In particular, the invention relates to a sensor for monitoring analytes, such as glucose levels in a patient. The sensor comprises at least two hermetically closed chambers (2a, 2b), including an activation chamber and a measuring chamber, containing a sensitive fluid (3), the chambers communicating with each other through at least one microchannel (5), and a semi-permeable barrier (4) allowing the analyte to enter or leave the chambers. Each said chamber comprises at least one flexible membrane (6, 7) configured for antagonistic variations of the volume of the chambers.

Abstract: A microelectrical device comprising two generally parallel electrodes (20,21) at least one of which is movable, and at least one of the electrodes comprising a layer of a semiconductor presenting space charge characteristics. The electrodes have a closed position an open position. A spring effect biases the movable electrode (21) towards the open position. When the movable electrode (21) is closed by a first voltage pulse (P1) a sufficiently high space charge density (10) is generated to hold the movable electrode (21) closed. When zero voltage is applied the movable electrode (21) is held closed by the built in space charge until the application of a second voltage pulse (P2) which decreases the space charge in the semiconductor (10) to allow the movable electrode(s) to be moved to the open position by the spring effect.

Abstract: A microelectrical device has a ferroelectric layer (10) between parallel electrodes (20,21) at least one of which (21) is movable. The electrodes have a closed position in which the ferroelectric layer (10) is sandwiched between the two electrodes (21,21) and an open position in which the movable electrode (21) is spaced from the ferroelectric layer (10). A spring effect biases the movable electrode (21) towards the open position. When the movable electrode (21) is closed by a first voltage pulse (P1) the ferroelectric layer (10) is polarized to hold the movable electrode (21) closed. When zero voltage is applied the movable electrode (21) is held closed by remnant polarization of the ferroelectric material until the application of a second voltage pulse (P2) which cancels the remnant polarization of the ferroelectric material (10) to allow the movable electrode(s) to be moved to the open position by the spring effect.