Advances in Nanosensors for Biological and Environmental Analysis presents the current state-of-art in nanosensors for biological and environmental analysis, also covering commercial aspects. Broadly, the book provides detailed information on the emergence of different types of nanomaterials as transduction platforms used in the development of nanosensors. These include carbon nanotubes, graphene, 2-D transition metal dichalcogenides, conducting polymers and metal organic frameworks. Additional topics include sections on the way nanosensors have inspired new product development in various types of biological and environmental applications that are currently available and on the horizon.

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.

Over the past 20 years, the field of biosensor research has had a significant impact in both laboratory research and the commercial sector. Over that period, biosensors have revolutionized the care and management of diabetes and have had important impacts in several other areas of clinical diagnostics. Europe, North America and Asia-Pacific have all seen the rise of small and medium sized companies seeking technical and application niches in the manufacture or use of biosensors. The current activity in both gene and protein 'biochips' can be seen as the latest set of tools that allow users who are not analytical science practitioners to make technically complex and reliable biological weapons and the need for their rapid and reliable detection will need to be met by devices that have many characteristics in common with biosensors.
This book provides a practical introduction to the many skills needed in the highly interdisciplinary field of biosensor technology. Edited by two internationally renowned experts in this field, it draws together contributions from active researchers in Europe, North America and Asia who describe how to implement techniques as diverse as protein engineering, optical and electrochemical instrumentation, single cell electrophysiology, screen printing and numerical modelling in the context of producing biosensors for both laboratory and commercial applications. As well as the many detailed protocols and experimental tips, the book also offers an overview of current research in this area as well as pointers to its further directions. The diversity of topics covered means that it will be suitable both for those already active in the area who wish to expandtheir repertoire of experimental tools and for those who are just starting out in biosensors research.

Biosensors are becoming increasingly important bioanalytical tools in the pharmaceutical, biotechnology, food, and other consumer oriented industries. The technology, though well developed in Europe, is slowly developing and has begun to generate interest in the United States only over the past couple of years. Research is now being directed toward the development of biosensors that are versatile, economical, and simple to use.
Engineering Biosensors is a comprehensive introduction to biosensors that includes numerous illustrations to further explain the main concepts and practical examples from existing literature. It describes what biosensors are, where they are used, and how their performance is affected by existing surface characteristics.
A better understanding of biosensors, as provided by this book, will greatly assist in the design of new as well as the improvement of existing biosensors. Readers are also provided with invaluable and hard-to-find data on the economics of the biosensor market to assist them in better understanding the market and where it is heading.

This book starts with an overview and introduction on the trends in nanofabrication and nanoimprint technology, followed by a detailed discussion on the design, fabrication, and evaluation of nanoimprint biosensors. The proto-model systems and some application examples of this sensor are also included in the chapters. The book will appeal to anyone in the field of nanotechnology, especially nanofabrication, nanophotonics, and nanobiology, or biosensor research.

Since four decades, rapid detection and monitoring in clinical and food diagnostics and in environmental and biodefense have paved the way for the elaboration of electrochemical biosensors. Thanks to their adaptability, ease of use in relatively complex samples, and their portability, electrochemical biosensors now are one of the mainstays of analytical chemistry. In particular, electrochemistry has played a pivotal role in the development of transduction methods for biological processes and biosensors. In parallel, the explosion of activity in nanoscience and nanotechnology and their huge success have profoundly affected biosensor technology, opening new avenues of research for electrode materials and transduction. This book provides an overview of biosensors based on amperometry, conductimetry, potentiometry, square-wave voltammetry, impedance, and electrochemiluminescence and describes the use of ultramicroelectrodes for the real-time monitoring and understanding of exocytosis. Areas of particular interest are the use of silver and gold nanoparticles for signal amplification, photocurrent transduction, and aptamer design. Moreover, advanced insights in the innovative concept of self-powered biosensors derived from biofuel cells are also discussed.

Optical Fiber Biosensors: Device Platforms, Biorecognition, Applications provides a comprehensive overview of the field of fiber optic sensors using an interdisciplinary approach that covers the fabrication of sensing devices and optical hardware, the functionalization to perform selective biorecognition, and the main applications of biosensors, with a present and a future outlook. Chapters discuss the principles of light propagation and the sensing devices suitable to perform biosensing with optical fibers, the process to functionalize the previous devices to selective biosensing, and applications in cells, small molecules, biomarkers and protein sensing, with a birds eye view on the most important results. This book provides a coherent picture of fiber optic biosensors, from the start (the device) to the end (the application), explaining in simple terms what is the whole process for development of a biosensor. The book also contains practical material (e.g. commercial instruments, fabrication instructions, medical standards for biocompatibility) that cannot be easily found elsewhere, and this is very useful for researchers to plan their development and build their labs.

Chemical, Gas, and Biosensors for the Internet of Things and Related Applications brings together the fields of sensors and analytical chemistry, devices and machines, and network and information technology. This thorough resource enables researchers to effectively collaborate to advance this rapidly expanding, interdisciplinary area of study. As innovative developments in the Internet of Things (IoT) continue to open new possibilities for quality of life improvement, sensor technology must keep pace, Drs. Mitsubayashi, Niwa and Ueno have brought together the top minds in their respective fields to provide the latest information on the numerous uses of this technology. Topics covered include life-assist systems, network monitoring with portable environmental sensors, wireless livestock health monitoring, point-of-care health monitoring, organic electronics and bio-batteries, and more.

Electrochemical biosensors are portable devices that permit rapid analysis of substances. They are most useful in detection and monitoring of biological, chemical and toxic agents. Briefly, with the help of transducer, the generated electrical signals from the responses to change in the bioactive layers are used for the interpretation. Similarly, nanomaterials have number of features that make them ideally suited for sensor applications, such as, its high surface area, high reactivity, easy dispersability and rapid fabrication. This collected work composed of the expert knowledge of many specialists in the construction and use of electrochemical biosensors made of nanostructured materials. This includes nanomaterials such as dendrimers, polymers, nanoparticles, nanotubes, oxides, enzymes and their hybrids as catalyst for various sensors such as glucose sensors, DNA sensors, neurotransmitters sensors, etc. This collected work provides new methodological advancements related to and correlated with the measurement of interested species in biomedical samples. Many studies are also included to illustrate the range of application and importance of the electrochemical biosensors. This provides the unique opportunity for readers to choice a new methods and applications of new electrochemical biosensors.

A biosensor is an analytical device which converts a biological response into an electrical signal. It consists of 3 parts: the sensitive biological element, the transducer and the associated electronics or signal processors that are primarily responsible for the display of the results in a user-friendly way. The most widespread example of a commercial biosensor is the blood glucose biosensor. Recently, arrays of many different detector molecules have been applied in so-called electronic nose devices, where the pattern of response from the detectors is used to fingerprint a substance. There are also several applications of biosensors in food analysis. Optical sensors are used to detect pathogens and food toxins. Thus, the light system in these biosensors has been fluorescence, since this type of optical measurement can greatly amplify the signal. This book will present research on new materials, technologies as well as applications in the field of biosensors.

Nanomaterials Design for Sensing Applications examines chemosensors, beginning with molecules that are able to respond to certain stimuli and then showing their assembly and incorporation into sensing materials. The mechanisms of their action for the detection of ions, specific molecules and biostructures, are also covered. A major theme is the affordability of sensors, with particular attention paid to inexpensive and reliable colorimetric sensors that can be read by the naked eye. The book also delves into the development of sensors that utilize existing RFID infrastructure and introduces a novel strategy for the development of self-healing sensing platforms. This book will help readers develop a better understanding of the types of materials used for sensing at the nano level, while also providing an insightful overview on recent advances in this important area.

As the elderly population increases, the importance of creating sophisticated information support to humans with limited sensing performance has also grown. This book discusses human and artificial sensing in conjunction with human perception capabilities (auditory, taste, smell, vision, and touch). It also discusses the fusion of this sensing information to find answers to questions such as how we can increase our human "fuzzy" decision capability (perception). The book presents intelligent new technologies that can enhance the natural sensing, perception, and mobility abilities of humans, allowing them to have healthier, more productive, safer lives.