Abstract
We review the principles of optical and electrochemical sensors based on the use of the sol-gel technique, in particular their fabrication, working principles, and various configurations. We also report on potential applications, e.g. to environmental and clinical analysis, to gas sensing, and to bioprocess monitoring. Methods are critically reviewed for making such sensors, how to encapsulate organic, inorganic and biological matter, and how to control the properties of the resulting materials. Specifically, sensors for gases, ions, and organic as well as bioorganic molecules are discussed in some detail.
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Wolfbeis, O.S., Reisfeld, R., Oehme, I. (1996). Sol-gels and chemical sensors. In: Optical and Electronic Phenomena in Sol-Gel Glasses and Modern Application. Structure and Bonding, vol 85. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0111488
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