Dpto. Química Aplicada - Kimika Aplikatua Saila
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Browsing Dpto. Química Aplicada - Kimika Aplikatua Saila by Author "Bariáin Aisa, Cándido"
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Publication Open Access Application of gold complexes in the development of sensors for volatile organic compounds(World Gold Council, 2007) Luquin, Asunción; Elosúa Aguado, César; Vergara, Elena; Estella, Juncal; Cerrada, Elena; Bariáin Aisa, Cándido; Matías Maestro, Ignacio; Garrido Segovia, Julián José; Laguna, Mariano; Química Aplicada; Kimika Aplikatua; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta ElektronikoaTwo different kinds of sensors have been developed by using the same kind of vapochromic complexes. The vapochromic materials [Au2Ag2(C6F5)(4)L-2](n) have different colours depending on the ligand L. These materials change, reversibly, their optical properties, colour and fluorescence, in the presence of the vapours of volatile organic compounds (VOCs). For practical applications, two different ways of fixing the vapochromic material to the optical fibre have been used: the sol-gel technique and the electrostatic self-assembly method (ESA). With the first technique the sensors can even be used to detect VOCs in aqueous solutions, and using the second method it has been possible to develop nanosensors.