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Books > Professional & Technical > Biochemical engineering > Biotechnology > Biosensors
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Chemical Sensors - Properties, Performance & Applications (Hardcover)
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Chemical Sensors - Properties, Performance & Applications (Hardcover)
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Ozone is a harmful gas to people's health even at low
concentrations. Thus, it has attracted much interest to develop
portable energy-saving high-resolution ozone sensors. In this book,
the physical principle of photon stimulated ozone sensors based on
indium oxide nanostructures has been investigated. Ozone sensors
have been integrated with light-emitting diodes (LEDs) and the
sensor performance towards real applications has been tested. To
examine the mechanisms of photon stimulation (photoreduction) and
oxidation effects, electrical, surface analytical and structural
characterisation of ozone sensing layers were performed and
analysed. Moreover, optical fibre sensor has found applications in
the biomedical research, industrial process control and
environmental monitoring. This book provides a review of the
optical fibre sensor, especially focused on the optical fibre
sensor development and its application in gas detection. In
addition, electrochemical impedance spectroscopy (EIS) is a
sensitive tool providing information on various physical and
chemical properties of materials, as well as on interaction
processes occurring in the bulk or at the surface of these
materials. In this book, the use of impedimetric transducers based
on interdigitated electrode arrays (IDEA) for chemical and
bio-sensors development is reviewed. Different designs of IDEA
devices are presented and the effect of the transducer geometry on
resulting impedance spectra is discussed. The authors also examine
the development of an amperometric biosensor for phenol detection.
The variables that exert influence on the performance of the
biosensor response, including enzyme immobilisation procedure,
laccase amounts, pH and working potential were investigated as
well. Furthermore, the feasibility of the biosensor response for
various phenol compounds was also investigated. Recent advances in
sensor technology, signal processing and pattern recognition
algorithms have led to the development of chemical sensing
instruments housing one or more non-specific gas sensors. This book
also reviews the recent applications of non-specific gas sensor
array technologies used for environmental monitoring of odours;
including a brief history on odour measurement applications; the
different types of sensors utilised in gas sensor array systems and
a range of pattern recognition techniques, from simple statistical
analyses to artificial neural networks, used for the purpose of
odour identification and quantification is also discussed.
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