Optimizing NMR Methods for Structure Elucidation


Book Description

This book is aimed at informing organic chemists and natural products chemists on the use of NMR for structure elucidation to enable them to ensure they yield the most reliable possible data in the minimum possible time. It covers the latest pulse sequences, acquisition and processing methods, practical areas not covered in most texts e.g. detailed consideration of the relative advantages and disadvantages of different pulse sequences, choosing acquisition and processing parameters to get the best possible data in the least possible time, pitfalls to avoid and how to minimize the risks of getting wrong structures. Useful in industrial, pharma or research environments, this reference book is for anyone involved with organic chemistry research and, in particular, natural products research requiring advice for getting the best results from the NMR facilities.




NMR Methods for Characterization of Synthetic and Natural Polymers


Book Description

Since the introduction of FT-NMR spectroscopy around five decades ago, NMR has achieved significant advances in hardware and methodologies, accompanied with the enhancement of spectral resolution and signal sensitivity. Rapid developments in the polymers field mean that accurate and quantitative characterization of polymer structures and dynamics is the keystone for precisely regulating and controlling the physical and chemical properties of the polymer. This book specifically focuses on NMR investigation of complex polymers for the polymer community as well as NMR spectroscopists, and will push the development of both fields. It covers the latest advances, for example high field DNP and ultrafast MAS methodologies, and show how these novel NMR methods characterize various synthetic and natural polymers.




Integrated Structural Biology


Book Description

Modern research in biology increasingly relies on multiple techniques for describing structures and mechanisms. This book provides an overview of the contemporary integrated biology approaches for solving structures and understanding mechanisms of complex biological systems. It includes several methodology chapters discussing the current developments in the areas of cryo-electron microscopy (EM) and cryo-electron tomography (ET), computational biophysics, solution NMR spectroscopy, solid-state NMR spectroscopy and dynamic nuclear polarization (DNP), electron paramagnetic resonance (EPR), (photo-)chemically induced dynamic nuclear polarization (CIDNP), X-ray crystallography and small-angle X-ray and neutron scattering (SAXS/SANS). Several subsequent chapters demonstrate how these methods are used in synergy to address problems at the forefront of structural biology, with particular emphasis on examples where individual techniques are insufficient. Examples of biological systems include membrane proteins, viral protein assemblies, cytoskeleton protein assemblies, photosynthetic reaction centers, large enzyme complexes and whole cells. The book is targeted to both the current practitioners of structural biology and scientists who are interested in entering the fields of structural biology or biophysical chemistry.




Advanced Diffusion Encoding Methods in MRI


Book Description

The medical MRI community is by far the largest user of diffusion NMR techniques and this book captures the current surge of methods and provides a primary source to aid adoption in this field. There is a trend to adapting the more advanced diffusion encoding sequences developed by NMR researchers within the fields of porous media, chemical engineering, and colloid science to medical research. Recently published papers indicate great potential for improved diagnosis of the numerous pathological conditions associated with changes of tissue microstructure that are invisible to conventional diffusion MRI. This book disseminates these recent developments to the wider community of MRI researchers and clinicians. The chapters cover the theoretical basis, hardware and pulse sequences, data analysis and validation, and recent applications aimed at promoting further growth in the field. This is a fast moving field and chapters are written by key MRI scientists that have contributed to the successful translation of the advanced diffusion NMR methods to the context of medical MRI, from global locations.




Physical Principles of Chirality in NMR


Book Description

How can we study one of the most elusive molecular properties, chirality, using nuclear interactions with the magnetic field that are apparently insensitive to handedness? This book answers this question from the physicochemical point of view by providing a clear, coherent, and comprehensive review of methods used in NMR studies of chirality. Presented arguments based on fundamental physical and chemical laws and in-depth descriptions of new methods utilizing purely physical interactions are mainly addressed to spectroscopists in both academia and industry. The introductory chapters provide the reader with the basics of NMR spectroscopy as a tool for the study of chiral compounds, and those more interested in the methods of chiral discrimination will benefit from the brief description of their common points and reasons why some of them may or may not work. In the following chapters, the book shows rapid progress in a newly emerging field of chirality-sensitive NMR, in particular, a search for effects that give direct information about the absolute configuration of a molecule.




Fast 2D Solution-state NMR


Book Description

Written by active investigators in the field, this book describes state-of-the-art methods that can accelerate the acquisition of 2D NMR spectra in solution-state NMR. The acquisition of fast multi-dimensional NMR data has motivated numerous ground-breaking developments in NMR pulse sequences and associated data processing methods. These in turn have revolutionized the way 2D NMR acquisitions are performed, at the same time broadening the scope of applications of 2D NMR. The first part of the book provides an in-depth description of the concepts and implementation of major fast 2D NMR methods. The second part follows with illustrations of how such methods can be used in applications that require the acquisition of fast 2D NMR spectra, from reaction monitoring to hyperpolarization, including applications to a broad variety of samples and experimental conditions. Appealing to readers from both the methodology and applications communities, this title will fill a gap in the market for a book focused on small molecule NMR, and researchers from both academia and industry will find a rich plethora of knowledge.




Environment in a Magnet


Book Description

Global climate change is the most important challenge humankind is facing in the modern era. One of the main scientific concerns is the monitoring of contaminants in the environment, which require the right environmental remediation strategies. In this context, nuclear magnetic resonance (NMR) techniques have a very important role in enabling the discovery of how pollutants are transformed, how they can move and how they can affect human health. This book discusses the present and the future perspectives of NMR techniques for environmental evaluations. It covers, amongst other topics, the importance of NMR as a contamination discovery tool, how to improve sensitivity in environmental NMR, and multiphase NMR for measurement of samples in their natural state. Samples include lubricant oils, soils and porous media. Due to the direct relationship between the environment and human health, there is information dedicated to the use of magnetic resonance imaging (MRI) to monitor human health as related to environmental pollution. There is also a chapter on how NMR is used in cultural heritage to measure artefacts directly affected by environmental pollution. Filling a gap in the literature, the book is for researchers explaining how to apply their knowledge of NMR techniques to solve environmental problems, and for students who want to deepen their understanding of this topic.




NMR and MRI of Gels


Book Description

Gels are used in a large variety of commercial and scientific products from drug delivery systems and food science to biomedical sensors. They also are invaluable in MRI physics research where they mimic biological tissue and in radiotherapy quality assurance where they are used to capture the three dimensional radiation dose distribution. This unique book discusses the state-of-the-art of NMR and MRI techniques in studying the physics and chemistry of gel systems, in their application as MRI phantoms and as three dimensional radiation dosimeters. The first part of the book will cover the fundamental physical concepts of gels and the NMR techniques to study gel systems. The second part is dedicated to the application of gels in the life sciences and in the medical practice to validate radiotherapy and new MRI techniques. Filling the gap in literature, this volume provides the scientific reader with an extensive overview of possible techniques and methods to study the interesting properties and applications of gels. For the MRI researcher and medical physicist, the book will be a valuable resource in using gel phantoms for validating contemporary MRI techniques and radiotherapy treatments.




Practical NMR for Oil and Gas Exploration


Book Description

Describing comprehensively the development and applications of NMR to oil and gas exploration, this book will bring the literature up to date as it has developed very quickly in the last two decades. Outlining new methodologies, it will provide a thorough and comprehensive document enabling a better understanding of the basics of NMR physics, petrophysics, downhole tools and data interpretation. Written by an author with more than 30 years’ experience in this hot and important topic, this book is designed to meet the needs of the community and encourage applications in low field NMR.




NMR Spectroscopy for Probing Functional Dynamics at Biological Interfaces


Book Description

Providing a comprehensive amalgamation of the scattered knowledge of how to apply high-resolution NMR techniques to biomolecular systems, this book will break down the conventional stereotypes in the use of NMR for structural studies.