Discovery and Development of Neuroprotective Agents from Natural Products draws together global research on medicinal agents from natural sources as starting points for the design of neuroprotective drugs. From the prediction of promising leads and identification of active agents to the extraction of complex molecules, the book explores a range of important topics to support the development of safer, more economical therapeutics for these increasingly prevalent diseases. Beginning with an overview of current developments in the field, the book goes on to explore the identification, extraction and phytochemistry of such neuroprotective agents as antioxidants, biophenols and naturally occurring anti-inflammatory steroid analogues. Specific natural sources of bioactive agents are reviewed, and the development of these agents into therapeutics for a number of specific neurological disorders, including Alzheimer's disease, Parkinson's disease and ischemic brain stroke, are discussed. Combining the expertise of specialists from around the world, this in the Natural Products Drug Discovery series aims to support and encourage researchers in the investigation of natural sources as starting points for the development of standardized, safe and effective neuroprotective drugs.

Advances in Organometallic Chemistry, Volume 67 contains authoritative review articles of worldwide known researchers on the field of organometallic chemistry, covering topics in organometallic synthesis, reactions, mechanisms, homogeneous catalysis, and more. Updates in this new volume include chapters on Group 6 Metal Fischer Carbene Complexes: Versatile Synthetic Building Blocks, Recent Advances in Transition-Metal-Catalyzed Cross-Coupling Reactions With Tosylhydrazones,Oxidative Functionalization of Late Transition Metal-Carbon Bond, and Biaryl Synthesis via C-H Bond Activation: Strategies and Methods. This book will benefit a wide range of researchers involved in organometallic chemistry, including those working on synthetic protocols, mechanistic studies and practical applications.

In this book, the author provides expert analysis on naturally occurring iridoids, their chemistry and their distribution in plants and insects. Particular attention is given to the pharmacology of iridoids and their prospective applications in pharmaceutical and agricultural industries. Iridoids are found in a wide variety of plants and some insects, and they are structurally derived from monoterpenoid natural products. In the first two chapters of this book, the author describes the iridoids classification, occurrence and distribution in plants and insects. The following chapters cover different chromatographic and spectroscopic techniques that can be used to identify and quantify iridoids in herbal formulations, and also the biosynthesis of iridoids, in which the reader will discover a metabolomics and transcriptomics analysis to identify the genes involved in the biosynthesis. The final chapters provide insights on several pharmacological activities of iridoids, their physiological role in insects, pharmacokinetics in mammals, insects and microorganisms, and their applications in medicine and agriculture. This book will engage students and researchers interested in the chemistry of natural products, and it will also appeal to medicinal chemists and practitioners working in the design of new herbal drugs with bioactive pure iridoids.

This book discusses recent advances in hydrogels, including their generation and applications and presents a compendium of fundamental concepts. It highlights the most important hydrogel materials, including physical hydrogels, chemical hydrogels, and nanohydrogels and explores the development of hydrogel-based novel materials that respond to external stimuli, such as temperature, pressure, pH, light, biochemicals or magnetism, which represent a new class of intelligent materials. With their multiple cooperative functions, hydrogel-based materials exhibit different potential applications ranging from biomedical engineering to water purification systems. This book covers key topics including superabsorbent polymer hydrogel; intelligent hydrogels for drug delivery; hydrogels from catechol-conjugated materials; nanomaterials loaded hydrogel; electrospinning of hydrogels; biopolymers-based hydrogels; injectable hydrogels; interpenetrating-polymer-network hydrogels: radiation- and sonochemical synthesis of micro/nano/macroscopic hydrogels; DNA-based hydrogels; and multifunctional applications of hydrogels. It will prove a valuable resource for researchers working in industry and academia alike.

This thesis focuses on NHC-catalyzed annulation of nitroalkenes, enals and , -unsaturated carboxylic acids. (1) NHCs were found to be efficient catalysts for the [4+2] annulation of -substituted nitroalkenes. The scope of Rauhut-Currier reaction was successfully extended to the most challenging -substituted alkenes by this method; (2) Enals were successfully used for [4+2] annulations with azodicarboxylates catalyzed by NHC via -addition. Highly enantiopure tetrahydropyridazinones and -amino acid derivatives could be easily prepared by subsequent transformations of the resulting dihydropyridazinones. (4) The readily available , -unsaturated carboxylic acids were first successfully employed to generate the , -unsaturated acyl azolium intermediates by using NHC for the enantioselective [3+2] and [3+3] annulations.

The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal.

This volume surveys oxidation activities in key biological systems, including heme proteins and enzymes, oxygenases and oxidases, photosynthetic systems, and cell and tissue damage.

Drug discovery is an expensive, time-consuming process and the modern drug discovery community is constantly challenged not only with discovering novel bioactive agents to combat resistance from known diseases and fight against new ones, but to do so in a way that is economically effective. Advances in both experimental and theoretical/computational methods envisage that the greatest challenges in drug discovery can be most successfully addressed by using a multi-scale approach, drawing on the specialties of a whole host of different disciplines. Multi-Scale Approaches to Drug Discovery furnishes chemists with the detail they need to identify drug leads with the highest potential before isolating and synthesizing them to produce effective drugs with greater swiftness than classical methods may allow. This significantly speeds up the search for more efficient therapeutic agents. After an introduction to multi-scale approaches outlining the need for and benefits of their use, the book goes on to explore a range of useful techniques and research areas, and their potential applications to this process. Profiling drug binding by thermodynamics, machine learning for predicting enzyme sub-classes, and multitasking models for computer-aided design and virtual compound screening are discussed, before the book goes on to review Alkaloid Menispermaceae leads, natural chemotherapeutic agents and methods for speeding up the design and virtual screening of therapeutic peptides. Flavonoids as multi-target compounds are then explored, before the book concludes with a review of Quasi-SMILES as a novel tool. Collecting together reviews and original research contributions written by leading experts in the field, Multi-Scale Approaches to Drug Discovery highlights cutting-edge approaches and practical examples of their implementation for those involved in the drug discovery process at many different levels. Using the combined knowledge of medicinal, computational, pharmaceutical and bio- chemists, it aims to support growth in the multi-scale approach to promote greater success in the development of new drugs.

This text provides a comprehensive and thorough overview of kinetic modelling in food systems, which will allow researchers to further their knowledge on the chemistry and practical use of modelling techniques. The main emphasis is on performing kinetic analyses and creating models, employing a hands-on approach focused on putting the content discussed to direct use. The book lays out the requisite basic information and data surrounding kinetic modelling, presents examples of applications to different problems and provides exercises that can be solved utilizing the data provided. Kinetic Analysis of Food Systems pursues a practical approach to kinetic analysis, providing helpful exercises involving chlorophyll degradation in processed vegetables, metabolic oscillations and sugar accumulation in cold-stored potatoes, transesterification of oils to manufacture biodiesel, aggregation of whey proteins to make protein gels and crystallization of fat stabilizers used in nut butters, among others. The book lays out the basics of kinetic modelling and develops several new models for the study of these complex systems. Taken together with the accompanying exercises, they offer a full portrait of kinetic analysis, from its basic scientific groundwork to its application.

Algal Green Chemistry: Recent Progress in Biotechnology presents emerging information on green algal technology for the production of diverse chemicals, metabolites, and other products of commercial value. This book describes and emphasizes the emerging information on green algal technology, with a special emphasis on the production of diverse chemicals, metabolites, and products from algae and cyanobacteria. Topics featured in the book are exceedingly valuable for researchers and scientists in the field of algal green chemistry, with many not covered in current academic studies. It is a unique source of information for scientists, researchers, and biotechnologists who are looking for the development of new technologies in bioremediation, eco-friendly and alternative biofuels, biofertilizers, biogenic biocides, bioplastics, cosmeceuticals, sunscreens, antibiotics, anti-aging, and an array of other biotechnologically important chemicals for human life and their contiguous environment. This book is a great asset for students, researchers, and biotechnologists.

With contributions by leading international experts, this book presents a detailed compilation of a new and very active field. It is the first book devoted to the covalent coupling of molecular precursors on surfaces that allows the preparation of 0D, 1D and 2D molecules that cannot be synthesized in solution. This book is aimed at students and researchers interested in nanochemistry and molecular devices and it gives the reader a pedagogical up-to-date vision of the most recent developments. The editor ensures a multidisciplinary approach involving molecular chemistry, surface sciences, surface spectroscopies, theory, scanning tunneling and non-contact atomic force microscopies.

This book effectively links the latest scientific advances to current technological applications of polymers, mainly focusing on biodegradable polymers obtained from biomass. The individual chapters were written by academic and industry researchers alike, introducing readers to topics that have received little attention in the literature to date. Key topics covered include polymers used in various areas such as food packaging, pharmaceuticals, energy production and the cosmetics industry, as well as the treatment of aqueous effluents.

This thesis presents the latest developments in new catalytic C-C bond formation methods using easily accessible carboxylate salts through catalytic decarboxylation with good atom economy, and employing the sustainable element iron as the catalyst to directly activate C-H bonds with high step efficiency. In this regard, it explores a mechanistic understanding of the newly discovered decarboxylative couplings and the catalytic reactivity of the iron catalyst with the help of density functional theory calculation. The thesis is divided into two parts, the first of which focuses on the development of a series of previously unexplored, inexpensive carboxylate salts as useful building blocks for the formation of various C-C bonds to access valuable chemicals. In turn, the second part is devoted to several new C-C bond formation methodologies using the most ubiquitous transition metal, iron, as a catalyst, and using the ubiquitous C-H bond as the coupling partner.

This book presents a short introduction to the historical background to the field, the state of the art and a brief survey of the available instrumentation and the processing techniques used. The following major areas of interest in synthetic, organic and medicinal chemistry are elaborated on: transition-metal catalyzed reactions, organocatalytic transformations, heterocyclic synthesis, and photochemical reactions. Finally, selected applications in industry are also discussed. With its ample presentation of examples from recent literature, this is an essential and reliable source of information for both experienced researchers and postgraduate newcomers to the field.

This book addresses chemical and biological aspects related to sesquiterpene lactones (STLs). Experts in different fields have been invited to contribute on this class of compound's chemistry, isolation and identification, biological activities (antibacterial, antifungal, antiviral, antitrypanosomal, antileishmanial,antiplasmodial, antiproliferative and antiinflammatory), synthesis, biosynthesis, derivatization and QSAR analysis. Taxonomic and chemotaxonomic aspects related to the Asteraceae family are also contributed. The book begins by describing the chemical characteristics of STLs, their classification in different skeleton types, synthesis, distribution in nature and their most important biological properties. An overview of the group's main representatives, based on their importance for human health, as well as an update of the most recently isolated STLs, follow. The authors also provide an overview of the most common methods described in the literature for the extraction, purification, identification and structure elucidation of STLs, while also highlighting more recently developed methods. Furthermore, experts in the field provide an in-depth discussion of the most commonly employed in vitro and in vivo antiprotozoal assays against the different stages of parasites, as well as STLs' properties as anticancer agents in numerous cancer cell lines and animal models. Lastly, the book presents examples of the in vitro and in vivo activity of STLs and their mechanism of antiprotozoal action, together with an analysis of ultrastructural alterations, observed using TEM techniques. The book is aimed at scientists working on natural products: both those investigating this particular group of compounds and those who wish to further explore its potential as new drugs for medical conditions such as protozoal diseases and cancer.

Written with the non-scientist in mind, this book employs the molecule and its interactions to explain the characteristics of living organisms in terms of the underlying chemistry of life. Following introductory chapters on the fundamentals of life, attention then turns to small molecules such as hormones and neurotransmitters and subsequently to macromolecules including proteins and nucleic acids. The interactions between small and macromolecules remains a central point throughout the book. These include enzymatic catalysis, hormone action, neurotransmission, regulation of metabolism, biosynthesis of macromolecules, the mechanism of action of drugs, taste, olfaction, learning and memory, and chemical communication.
A second central point of emphasis is the sensitive relationship between chemical structure and biological activity. Examples abound and include why subtle changes in fatty acid architecture have positive or negative outcomes for human health in omega-three fatty acids and trans fats and how modest changes in the chemical decoration of the steroid skeleton provide the difference between male and female sex hormones. Beyond these examples taken from the chemistry of small molecules, the book includes a thoughtful consideration of genomics, including the relationship between genome structure and species. The theme of human health appears throughout the book. Cardiovascular medicine, cancer, metabolic diseases, and diseases of the nervous system receive significant attention including consideration of how a variety of drugs work in combating these issues.
In sum, the goal of this book is to inform the non-scientist community in a way that will lead to increased understanding of the relationship between chemistry and life.

This book describes the development of three dimensional electroactive fibres using a novel coaxial wet-spinning approach from organic conductors in combination with non-conducting hydrogel polymers. This book also presents the characterization and evaluation of multiaxial biofibres in terms of mechanical, physical, electrochemical and biological properties, and explores their use in a diverse range of applications including implantable electrodes, drug delivery systems and energy-storage systems. In the first chapter, the author highlights the significance of engineering three dimensional fibres, introduces the involved hydrogels and organic conductors with emphasis on their biomedical application, and collects some of the previously established methods for fabrication of biofibres. In the second chapter, particular attention is given to the overall experimental fabrication methods and characterization analyses conducted in the work. Chapters three to five present the main findings of this work, in which readers will discover how novel hybrid hydrogel fibres with an inner core of chitosan and alginate were prepared and characterized, how graphene was incorporated into coaxial wet-spun biofibres, and how one-dimensional triaxial fibres were developed using a novel coaxial wet-spinning fibre production method and applied as potential battery devices. In the final chapter of this work, the author summarizes the main achievements of the work and outlines some recommendations for future research.

Carboranes, Third Edition, by Russell Grimes, is the definitive resource on the subject. Completely updated with a wealth of research and review articles published in this active field since the previous volume was released in 2011, the book provides a readable and concise introduction to the basic principles underlying the synthesis, structures, and reactions of carboranes, heterocarboranes, and metallacarboranes. Following the valuable foundational information, the book explores the advances in practical applications for the many areas in which experts have discovered that carboranes afford new possibilities for solving problems and advancing the science. These disciplines include polymer science, catalysis, biomedicine, nanomaterials, and others.

Free radical reactions have become increasingly important and a very attractive tool in organic synthesis in the last two decades, due to their powerful, selective, specific, and mild reaction abilities. "Advanced Free Radical Reactions for Organic Synthesis" reviews information on all types of practical radical reactions, e.g. cyclizations, additions, hydrogen-atom abstractions, decarboxylation reactions. The book usefully provides experimental details for the most important reactions as well as numerous references to the original literature. By covering both the fundamentals and synthetic applications it is therefore suitable for both new and experienced researchers, chemists, biochemists, natural product chemists and graduate students. This title is the definitive guide to radical chemistry for all scientists.
- Introduces and reviews the use of radicals to perform synthetic transformations.
- Practical details are provided for the most important methods.
- Numerous references to the original literature.

A book intended for food science researchers, technologists, students, and polymer chemists.;A fundamental understanding of polymers has evolved in recent years concurrent with advances in analytical instrumentation. The theories and methodologies developed for the galacturonan biopolymers (collectively called pectins) have seldom been discoursed comprehensively in the context of the new knowledge. This text explains the scientific and technical basis of many of the practices followed in processing and preparing foods fabricated with or containing pectin. The material is presented in a very readable fashion for those with limited technical training. Topics discussed include structural analysis, commercial extractions methods, pectin formulations and tropical fruit analysis, molecular mechanisms of gelatin, enzymology, and polymer confrontation techniques.

Master's and doctoral students often have unnecessary difficulty with the technical requirements of constructing a research proposal, writing a thesis and submitting it for examination. Students can expect expert supervision in conducting their research and drawing conclusions, but the responsibility for presenting their work in the correct way and in accordance with accepted conventions is theirs alone. This guide has been developed in response to both student's and supervisors' needs. The step-by-step discussion of the entire thesis undertaking spells out information for students that academics often take for granted, and that students often struggle to access on their own.