Luxembourg Institute of Science and Technology

Cesar Pascual Garcia

Mathieu Gerard

Damien Lenoble

Jean Sebastien Thomann

Jean Sébastien Thomann

A pH sensor comprises: a chamber for receiving an electrolyte solution; a first and a second ion-sensitive field effect transistor (ISFETs), each of the first and second ISFETs having a source terminal, a drain terminal and a transistor channel extending between the source terminal and the drain terminal, a dielectric layer with a sensing surface arranged in the chamber so as to be contactable by the electrolyte solution, the dielectric layer separating the sensing surface from the transistor channel; a first measurement circuit configured to measure a first source-drain resistance across the transistor channel of the first ISFET; and a second measurement circuit configured to measure a second source-drain resistance across the transistor channel of the second ISFET. The first and second measurement circuits include a common reference electrode, the reference electrode arranged contactable by the electrolyte solution in the chamber. The dielectric layer of first ISFET has a first thickness and the dielectric layer of the second ISFET has a second thickness different from the first thickness.

Hydrogen potential sensor

The present invention is related to an electrochemical reactor () and a microfluidic platform () comprising this reactor (), controlling pH in a closed environment, wherein this reactor () comprises at least one cell (), wherein each cell () containing at least one micro-well () able to contain a liquid and reagents and a cap () to close the said cell () and wherein the cell () further comprises at least one working electrode () producing reversible REDOX reactions.

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Cesar Pascual Garcia