Consejo Superior De Investigaciones Cientificas

Carlos Dominguez Horna

Andreu Llobera Adan

Ángel Merlos Domingo

Alfredo Cadarso Busto

César Fernández Sánchez

Antoni Baldi Coll

Ferrán Vera Gras

Isabel Burdallo Bautista

Cecilia Jimenéz Jorquera

Kirill Zinoviev

Laura Maria Lechuga Gomez

Cecilia Jimenèz Jorquera

Ion sensor based on differential measurement comprising an ISFTET-REFET pair wherein the REFET is defined by a structure composed of an ISFET covered by a microreservoir where an internal reference solution is contained. The sensor comprises a first and a second ion-selective field effect transistor, an electrode, a substrate on the surface whereof are integrated the two transistors, connection tracks and the electrode and a structure adhered on the first ion-selective field effect transistor which creates a microreservoir on the gate of said first transistor, with the microreservoir having a microchannel which connects the microreservoir with the exterior and the microreservoir being filled with the reference solution.

Ion sensor based on differential measurement, and production method

A planar optical waveguide interferometer includes a substrate, a bimodal waveguide having at least one layer deposited on the substrate, and a sensor plate located in a selected area of the upper side of the bimodal waveguide. The bimodal waveguide supports a zero-order and a first-order transverse propagating modes where the transverse propagating modes has different dispersion. The bimodal waveguide is designed for confining light in lateral direction and thus is designed for supporting one lateral mode. The sensor plate is designed for receiving a chemical, biological or physical stimulus. The stimulus changes the effective refractive index of said bimodal waveguide. Chip, sensor and sensing method utilize a planar optical waveguide interferometer are provided.

Interferometer and sensor based on bimodal optical waveguides, and detection method

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Carlos Dominguez Horna