Electrochemical sensors for assessment of food quality and safety
Abstract
The food industry is constantly challenged to meet consumer demands for new food products that are safe, convenient, affordable, pleasurable and healthy. Nanotechnology has begun to find potential applications in the area of functional food by engineering biological molecules toward functions very different from those they have in nature, opening up a whole new area of research and development. Of course, there seems to be no limit to what food technologists are prepared to do to our food and nanotechnology will give them a whole new set of tools to go to new extremes. The main objective of this research project was the development of analytical devices for the rapid and reliable determination of biological and chemical species (inorganic, and organic, including those of bacterial origin) present in foods of different types and origin for the assessment of food quality and safety. The project mainly focused on the development of micro- or nanosensor arrays to be used in electrochemical devices. For this purpose, it is planned to use conventional electrodes (glassy carbon, screen printed platinum, gold electrodes) and electrodes based on nanostructured materials suitably functionalized for application. In fact, it is well known that these surfaces can be modified by using chemical or biological systems to facilitate both the electron transfer at the electrode surface and the specificity and selectivity of the electrochemical transducer. Such devices, especially in the form of…
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