Electronic Noses and Tongues as Biosensors

A special issue of Biosensors (ISSN 2079-6374).

Deadline for manuscript submissions: closed (30 November 2017) | Viewed by 20135

Special Issue Editor

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Guest Editor
Tecnología de Sensores Avanzados (SENSAVAN), Instituto de Tecnologías Físicas y de la Información (ITEFI), CSIC, Serrano 144, 28006 Madrid, Spain
Interests: chemical and biological sensors; electronic noses; nanomaterials; sensor technology
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Special Issue Information

Dear Colleagues,

Electronic systems, such as e-noses and e-tongues, are bioinspired instruments that mimic the senses of smell and taste. The response given by the receptors of these artificial systems achieve the recognition and estimation of the concentration of tested analytes.

The transduction principle can be any easily-measured and miniaturized physical principle that can be linked with a chemical/biochemical reaction. Thus, electrochemical (potentiometric, amperometric, conductimetric), optical (absorbance, fluorescence, chemiluminescence), thermal, and piezoelectric transduction systems can be employed for both technologies. These sensor arrays (bioelectronics nose and tongues) are based on affinity and chemical interactions between analytes and different types of receptors (sensors).

Moreover, they are easy to build, provide short analysis times (in real time and on line), and, in addition, they are non-destructive technologies. These characteristics are very useful for their application in diverse fields, such as agro food, cosmetic, and pharmaceutical industries, as well as in environmental control, security, and clinical diagnostics (cancer, degenerative diseases, etc.) of interest for society in general; in addition, this will result in an enormous cost savings for industry.

The development of artificial sensitive technologies is occurring rapidly, as speed, reproducibility, consistency, and robustness are needed for commercial applications. Additionally, data analysis systems are also being developed and applied to these artificial sensing systems, to integrate responses with sensory and bio-chemical data, and to combine data from different technologies (such as e-noses and e-tongues) to better replicate the human sensing system.

This Special Issue will be mainly concentrated on recent advances in e-noses and e-tongues, from the point of view of biosensors, and of the applications above mentioned, because although this instrumentation has received considerable attention for the last two decades, there is much research to be done, especially with regard to new receptors for sensing, technology, data processing, interpretation, and validation of results. Therefore, both experimental and theoretical research, are welcome to this Special Issue.

Prof. Dr. M. Carmen Horrillo Güemes
Guest Editor

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  • Biosensors (thermoelectric sensors, piezoelectric sensors, electrochemical sensors, optic sensors, cell sensors, and immunosensors)
  • Sensitive receptors
  • Processing data
  • Electronic detection (gases, vapors, liquids)
  • System miniaturization
  • Electronic noses
  • Electronic tongues
  • Artificial systems
  • Applications

Published Papers (1 paper)

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2813 KiB  
Electronic Tongue—A Tool for All Tastes?
by Marta Podrażka, Ewa Bączyńska, Magdalena Kundys, Paulina S. Jeleń and Emilia Witkowska Nery
Biosensors 2018, 8(1), 3; https://doi.org/10.3390/bios8010003 - 31 Dec 2017
Cited by 142 | Viewed by 19240
Electronic tongue systems are traditionally used to analyse: food products, water samples and taste masking technologies for pharmaceuticals. In principle, their applications are almost limitless, as they are able to almost completely reduce the impact of interferents and can be applied to distinguish [...] Read more.
Electronic tongue systems are traditionally used to analyse: food products, water samples and taste masking technologies for pharmaceuticals. In principle, their applications are almost limitless, as they are able to almost completely reduce the impact of interferents and can be applied to distinguish samples of extreme complexity as for example broths from different stages of fermentation. Nevertheless, their applications outside the three principal sample types are, in comparison, rather scarce. In this review, we would like to take a closer look on what are real capabilities of electronic tongue systems, what can be achieved using mixed sensor arrays and by introduction of biosensors or molecularly imprinted polymers in the matrix. We will discuss future directions both in the sense of applications as well as system development in the ever-growing trend of low cost analysis. Full article
(This article belongs to the Special Issue Electronic Noses and Tongues as Biosensors)
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