Sensors are significantly relevant to many aspects of life. The advancements in nanotechnology-based sensing systems are giving rise to exciting developments in sensor applications. Recently, nanocomposites have become highly promising candidates for the designing of new chemical sensing and biosensing platforms. Graphene-based nanocomposites have been successfully employed in many sensing applications in view of their excellent physical properties including high surface area, electrical conductivity, flexibility and optical transparency. They provide remarkable advantages such as lower fabrication costs, improved biocompatibility, prominent sensitivity, stability and selectivity for effective real-world implementation. The aim of the book is to give an overview on the properties and novel applications of graphene-based nanocomposites as chemical and biosensors. Chapters highlight various biosensing applications such as diabetes monitoring, cancer cell detection, virus, bacteria, DNA, protein and amino acid sensing, as well as hormone and cholesterol detection. Moreover, chemical sensing applications like gas, alcohol, and food toxin sensing, heavy metal ion detection, and H2O2 sensing are also covered. The book is ideal for postgraduates, analytical chemists, biomedical scientists and researchers in both academic and industrial settings working on materials science, chemical science and nanotechnology.

Graphene-Based Electrochemical Sensors for Biomolecules presents the latest on these nanomaterials that have gained a lot of attention based on their unique properties of high mechanical flexibility, large surface area, chemical stability, superior electric and thermal conductivities that render them great choices as alternative electrode materials for electrochemical energy storage and sensor applications. The hybridization of graphene with other nanomaterials induces a synergetic effect, leading to the improvement in electrical conductivity, stability and an enhancement of the electrocatalytic activity of the new nanocomposite material. This book discusses the electrochemical determination of a variety of biomolecules using graphene-based nanocomposite materials. Finally, recent progress in the development of electrochemical sensors using graphene-based nanocomposite materials and perspectives on future opportunities in sensor research and development are discussed in detail. - Covers the importance of detecting biomolecules and the application of graphene and its nanocomposite materials in the detection of a wide variety of bioanalytes - Presents easily understood fundamentals of electrochemical sensing systems and the role of graphene-based nanocomposite materials in research and development

The sixth volume in a series of handbooks on graphene research and applications The Handbook of Graphene, Volume 6: Biosensors and Advanced Sensors discusses the unique benefits that the discovery of graphene has brought to the sensing and biosensing sectors. It examines graphene's use in leading-edge technology applications and the development of a variety of graphene-based sensors. The handbook looks at how graphene can be used as an electrode, substrate, or transducer in sensor design. Graphene-based sensor detection has achieved up to femto-levels, with performances delivering the advantages of greater selectivity, sensitivity, and stability.

Graphene-based nanocomposites are very useful in detecting toxic chemicals such as heavy metals, inorganic anions, phenolic compounds, pesticides, and chemical warfare agents. The book presents recent progress on relevant topics: Toxicity of chemicals, importance of electrochemical sensors, different types of graphene-based nanomaterials, Neurotoxins and electroanalytical detection of toxic chemicals. Keywords: Graphene-based Nanocomposites, Electrochemical Sensors, Toxic Chemicals, Sensors for Toxic Molecules, Graphene-Metal Oxides, Graphene-Metal Chalcogenides, Graphene-Polymer Nanocomposites, Graphene-Carbon Nanotubes, Graphene-Carbon Nitrides, Graphene-MOF Composites, Heavy Metals, Phenolic Compounds, Pesticides, Chemical Warfare Agents.

Disposable electrodes have been widely used as a sensing platform in electrical and electrochemical sensors owing to the possibility of quantitative detection using clinical biomarkers with high precision, sensitivity and reproducibility, which are necessary for accurate diagnosis of the health condition of an individual. This book focusses on the emerging disposable electrochemical sensors in the health sector and the advancement of analytical devices to monitor diabetic, cancer and cardiovascular patients using different nanomaterials. It discusses the upcoming strategies, advantages and the limitations of the existing devices using disposable electrodes. Uniquely, it covers in-depth knowledge of mechanistic features of various designs of screen-printing electrodes and the material aspects required of sensors developed for the healthcare field. It also looks at the portable devices using a variety of materials and the future directions for research in this area. Appealing to the health care industry, this book is aimed at academic and research institutes at both the graduate and postgraduate level. The contributors are leading experts in the field and they are providing guidance for the next decade of research in the field of disposable electrochemical biosensors.

Carbon-Based Nanomaterials and Nanocomposites for Gas Sensing discusses the state of the art, emerging challenges, properties, and opportunities of various carbon-based nanomaterials and nanocomposites, for their application in smart gas sensors. The book focuses on various carbon-based nanomaterials and their nanocomposites, sensing mechanism, device fabrication, and their application for the sensing of various hazardous gases. This is important for several industries, environmental monitoring, and human healthcare, due to increased industrialization. Carbon-Based Nanomaterials and Nanocomposites for Gas Sensing provides systematic and effective guidelines for researchers who want to gain a fundamental understanding of how this class of materials is being used for gas sensing. Since these sensors can be applied for the automation of numerous industrial processes, as well as for everyday monitoring of various activities, such as public safety, engine performance, medical therapeutics, and in many other situations, this book will catch the attention of readers and motivate them for advanced research in the development of smart and efficient gas sensors. - Offers a one-stop resource, bringing together information currently scattered over journal papers and project reports - Presents a focused concept reflecting the properties, synthesis, and sensing capabilities of carbon-based nanomaterials and their composites - Combines fundamental experimental and theoretical information with industrial needs and engineering design methods

Analytical Applications of Graphene for Comprehensive Analytical Chemistry, Volume 91 in the Comprehensive Analytical Chemistry series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of interesting topics, including Graphene based Nanocomposites: Synthesis, Properties and Application as Electrochemical Sensors, Graphene based Sample Preparation Techniques, Graphene Based Sample Preparation Techniques, Graphene-based thin film nanocomposite membranes for separation and purification, Analytical Applications of Graphene Oxide for Membrane Processes as Separation and Concentration Methods, Physico-chemically Functionalized Hybrid Graphene Derivatives for Miniaturized Microfluidics and Biotransducer Platform, and much more. Other chapters cover Graphene-based chemiresistive gas sensors, Graphene based Sensors, Applications of graphene-based sensors for biomedical industries, Point of care applications with graphene in human life, Ethical, Legal, Social & Economics Issues of Graphene, Safety and toxicity concerns of graphene and its composites, and the Future of Analytical Chemistry with Graphene. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Comprehensive Analytical Chemistry series - Contains the latest information on the analytical applications of graphene for analytical chemistry

Polymer Nanocomposites Containing Graphene: Preparation, Properties and Applications provides detailed up-to-date information on the characterization, synthesis, processing, properties and application of these materials. Key topics that are covered in the book include: the methods of synthesis and preparation of graphene as well as different processes and methods of functionalization and modification of graphene for improving composite properties. The preparation techniques focus on which method is advantageous for getting improvements in properties along with their drawbacks. The structure and property relationships are also discussed in detail. The issues related to graphene dispersion in polymer matrices is also addressed as well as the use of graphene as reinforcement in thermoset resins. The different properties of the composites like mechanical, electrical, dielectric, thermal, rheological, morphology, spectroscopy, electronic, optical, and toxicity are reviewed from the geometrical and functional point of view. Applications cover electrical and electronic fields, flame and fire retardancy, structural, sensing and catalysis, membrane, in fuel cell and solar energy, hydrogen production, aerospace engineering, packaging, and biomedical/bioengineering fields. Up-to-date patents on graphene-polymer nanocomposites are also covered. Those working in graphene-based materials will benefit from the detailed knowledge presented in this book on graphene synthesis, composite preparation methods, and the related problems associated with them. The book will enable researchers to select the appropriate composite as per their respective field of application. Presents novel approaches for the preparation of graphene, its modification and nanocomposites with enhanced properties for state-of-the-art applications Special attention is given to how graphene is synthesized through different routes, their functionality, dispersion related matters and structural aspects controlling the composite properties for various applications All synthesis methodology and functionalization procedure for graphene is discussed

Graphene Materials: Fundamentals and Emerging Applications brings together innovative methodologies with research and development strategies to provide a detailed state-of-the-art overview of the processing, properties, and technology developments of graphene materials and their wide-ranging applications. The applications areas covered are biosensing, energy storage, environmental monitoring, and health. The book discusses the various methods that have been developed for the preparation and functionalization of single-layered graphene nanosheets. These form the essential building blocks for the bottom-up architecture of various graphene materials because they possess unique physico-chemical properties such as large surface areas, good conductivity and mechanical strength, high thermal stability and desirable flexibility. The electronic behavior in graphene, such as dirac fermions obtained due to the interaction with the ions of the lattice, has led to the discovery of novel miracles like Klein tunneling in carbon-based solid state systems and the so-called half-integer quantum Hall effect. The combination of these properties makes graphene a highly desirable material for applications. In particular, Graphene Materials: Fundamentals and Emerging Applications has chapters covering: Graphene and related two-dimensional nanomaterials Surface functionalization of graphene Functional three-dimensional graphene networks Covalent graphene-polymer nanocomposites Magnesium matrix composites reinforced with graphene nanoplatelets Graphene derivatives for energy storage Graphene nanocomposite for high performance supercapacitors Graphene nanocomposite-based bulk hetro-junction solar cells Graphene bimetallic nanocatalysts foam for energy storage and biosensing Graphene nanocomposites-based for electrochemical sensors Graphene electrodes for health and environmental monitoring