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The contemporaneous measurement of different physical properties of a chemical sensing layer is expected to provide a general increase of selectivity. The application of this concept generally requires the use of multiple devices. In this paper, the measurement of optical and electric properties of one sensing layer with a single device is presented. The surface potential and optical sensitivities...
Modern chemistry makes possibile the production of artificial receptors endowed with interaction sites specific towards selected analytes. To fabricate chemical sensors a transducer able to preserve the selectivity of such sensing layers is requested. We demonstrate the Field Effect Transistors (FET) coated by metalloporphyrins emphasizes the coordination of analytes with the sensing molecules with...
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