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Development Of High Sensitivity Atmospheric Pressure Ap Matrix Assisted Laser Desorption Ionization Maldi And Open Air Ionization Techniques For The Analysis Of Biomolecules By Mass Spectrometry
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Book Synopsis Development of High-sensitivity Atmospheric Pressure (AP) Matrix-assisted Laser Desorption/ionization (MALDI) and Open Air Ionization Techniques for the Analysis of Biomolecules by Mass Spectrometry by : Arti T. Navare
Download or read book Development of High-sensitivity Atmospheric Pressure (AP) Matrix-assisted Laser Desorption/ionization (MALDI) and Open Air Ionization Techniques for the Analysis of Biomolecules by Mass Spectrometry written by Arti T. Navare and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Matrix-assisted laser desorption/ionization (MALDI) has been celebrated as a soft ionization method for analyzing very diverse biological species including large proteins, peptides, carbohydrates, lipids and metabolites. The fact that MALDI is tolerant to salts and buffers and that it mostly produces singly charged ions from intact biomolecules is considered highly advantageous over electrospray ionization (ESI). Almost two decades after the introduction of vacuum MALDI, the technique was successfully implemented under atmospheric pressure (AP) conditions by Laiko and co-workers. Some of the most salient advantages of AP-MALDI over vacuum MALDI are its ability to generate intact ions from labile species with minimal fragmentation due to collisional cooling under AP, the ability of performing MSn experiments, and its exchangeability with other ion sources. However, AP-MALDI suffers from limited sensitivity due to low ion transmission efficiency under AP conditions. Because sensitivity is a function of the sample pretreatment method of choice, both preconcentration and selective sample fractionation can be used during the initial stages of the analytical pipeline to improve detectability. To that end, the first part of the work presented in this thesis is aimed at investigating various approaches to improve the sensitivity of AP-MALDI for mass spectrometric analysis of biomolecules. Chapter 1 reviews the history of laser desorption ionization (LDI), presenting salient features of vacuum MALDI and AP-MALDI, and concludes with a brief overview of leading ambient ionization techniques, such as Direct Analysis in Real Time (DART) ionization. Chapter 2 presents an investigation of an on chip sample preconcentration approach coupled to AP-MALDI for high-sensitivity analysis of neuropeptides extracted from Aedes aegypti mosquito heads. The theme of exploring efficient and reproducible purification methods for complex biosamples is continued in Chapter 3, where an evaluation of new on-tip solid-phase extraction (SPE) micro columns with various functional groups is presented. A second approach for enhancing AP-MALDI sensitivity by constructing a new pneumatically-assisted (PA) AP-MALDI ion source is presented in Chapter 4, where various factors affecting the performance of this device are investigated. Chapter 5 describes work involving the evaluation of DART ionization as a high-throughput method for the detection and identification of small terpene molecules central to the Aedes aegypti mosquito lifecycle.
Book Synopsis Development and Characterization of an Atmospheric Pressure Ionization Source Matrix-Assisted Laser Desorption Electrospray Ionization Coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Analysis of Biological Macromolecules by :
Download or read book Development and Characterization of an Atmospheric Pressure Ionization Source Matrix-Assisted Laser Desorption Electrospray Ionization Coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Analysis of Biological Macromolecules written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of mass spectrometry has grown tremendously over the past few decades due in large part to the continued application to new and interesting areas of exploration. The advent of soft ionization sources such as electrospray ionization and matrix-assisted laser desorption/ionization have dramatically increased the capabilities of mass spectrometry and increased the amount of information derived from biological samples. As a result, there has been tremendous growth in the development of new ionization source technology in recent years. One of the main driving forces behind the development of new ionization technology is for the reduction of sample preparation required prior to analysis, yielding high throughput sample analysis. Demonstrated herein is the development and characterization of an atmospheric pressure ionization source called matrix-assisted laser desorption electrospray ionization (MALDESI). MALDESI is a hybrid combination of MALDI and ESI which utilizes laser desorption with electrospray postionization for the generation of multiply-charged ions. Multiply-charged ions are of particular importance when using Fourier transform mass spectrometry, due to the increase in resolving power and mass accuracy with increasing charge on the molecule. Top-down characterization of intact polypeptides is demonstrated as well as high mass accuracy utilizing internal calibration. A newly designed highly robust and versatile atmospheric pressure ionization platform is developed and described in detail. Solid- and liquid state analysis of three out of the four classes of biological molecules is demonstrated utilizing the newly developed versatile ionization platform. MALDESI utilizing ultraviolet and infrared laser desorption is demonstrated at various wavelengths (UV, 337 nm and 349 nm and IR, 2.94 Ã'Âæm and 10.6 Ã'Âæm) with and without ESI postionization for the generation of multiply-charged ions. The characteristics of liquid-state samples are described as a mac.
Book Synopsis Ambient Ionization Mass Spectrometry by : Marek Domin
Download or read book Ambient Ionization Mass Spectrometry written by Marek Domin and published by Royal Society of Chemistry. This book was released on 2014-11-25 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ambient ionization has emerged as one of the hottest and fastest growing topics in mass spectrometry enabling sample analysis with minimal sample preparation. Introducing the subject and explaining the basic concepts and terminology, this book will provide a comprehensive, unique treatise devoted to the subject. Written by acknowledged experts, there are full descriptions on how new ionization techniques work, with an overview of their strengths, weaknesses and applications. This title will bring the reader right up to date, with both applications and theory, and will be suitable as a tutorial text for those starting in the field from a variety of disciplines.
Book Synopsis Development of Matrix-assisted Laser Desorption/ionization and Liquid Chromatography - Electrospray Ionization Based Mass Spectrometric Techniques for Characterizing and Quantifying Endogenous and Therapeutic Biomolecules by : Bingming Chen
Download or read book Development of Matrix-assisted Laser Desorption/ionization and Liquid Chromatography - Electrospray Ionization Based Mass Spectrometric Techniques for Characterizing and Quantifying Endogenous and Therapeutic Biomolecules written by Bingming Chen and published by . This book was released on 2017 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endogenous biomolecules, such as neuropeptide, protein and carbohydrates, play important roles in biological and physiological processes. Over the last two decades, therapeutic biomolecules, including therapeutic peptides, proteins and monoclonal antibodies, have become large and fast-growing segments of the pharmaceutical industry. However, analyzing biomolecules is challenging due to their large size, complex structure and various modifications. In situ analysis of biomolecules is even more challenging due to the large dynamic range and complex microenvironments on tissue surface. In this dissertation, matrix-assisted laser desorption/ionization (MALDI) and liquid chromatography (LC) -- electrospray ionization (ESI) based mass spectrometric techniques were developed to characterize and quantify endogenous and therapeutic biomolecules. Specifically, this work developed novel ionization techniques and mass spectrometry imaging workflows to study the sequence and in situ distribution of biomolecules on high resolution accurate mass instrument platforms. Moreover, absolute or relative quantifications of biomolecules, such as therapeutic peptide or N-glycans, were measured by cutting-edge quantification workflows. In summary, this work not only improves current analytical methodology for characterizing biomolecules, but also demonstrates its potential applications in pharmaceutical industry and clinical settings.
Book Synopsis Semiconductor Nanomaterials by : Challa S. S. R. Kumar
Download or read book Semiconductor Nanomaterials written by Challa S. S. R. Kumar and published by John Wiley & Sons. This book was released on 2010-04-05 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book series Nanomaterials for the Life Sciences, provides an in-depth overview of all nanomaterial types and their uses in the life sciences. Each volume is dedicated to a specific material class and covers fundamentals, synthesis and characterization strategies, structure-property relationships and biomedical applications. The series brings nanomaterials to the Life Scientists and life science to the Materials Scientists so that synergies are seen and developed to the fullest. Written by international experts of various facets of this exciting field of research, the series is aimed at scientists of the following disciplines: biology, chemistry, materials science, physics, bioengineering, and medicine, together with cell biology, biomedical engineering, pharmaceutical chemistry, and toxicology, both in academia and fundamental research as well as in pharmaceutical companies. VOLUME 6 - Semiconductor Nanomaterials
Book Synopsis Mass Spectrometry in Medicinal Chemistry by : Klaus Wanner
Download or read book Mass Spectrometry in Medicinal Chemistry written by Klaus Wanner and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first overview of mass spectrometry-based pharmaceutical analysis is the key to improved high-throughput drug screening, rational drug design and analysis of multiple ligand-target interactions. The ready reference opens with a general introduction to the use of mass spectrometry in pharmaceutical screening, followed by a detailed description of recently developed analytical systems for use in the pharmaceutical laboratory. Applications range from simple binding assays to complex screens of biological activity and systems containing multiple targets or ligands -- all highly relevant techniques in the early stages in drug discovery, from target characterization to hit and lead finding.
Book Synopsis Matrix Assisted Laser Desorption Ionization with External Source Quadrupole Fourier Transform Mass Spectrometry for the Analysis of Biomolecules by : Steven Travis Fannin
Download or read book Matrix Assisted Laser Desorption Ionization with External Source Quadrupole Fourier Transform Mass Spectrometry for the Analysis of Biomolecules written by Steven Travis Fannin and published by . This book was released on 1995 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Characterization of an Atmospheric Pressure Ionization Source Matrix-assisted Laser Desorption Electrospray Ionization Coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Analysis of Biological Macromolecules by : Jason Scott Sampson
Download or read book Development and Characterization of an Atmospheric Pressure Ionization Source Matrix-assisted Laser Desorption Electrospray Ionization Coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Analysis of Biological Macromolecules written by Jason Scott Sampson and published by . This book was released on 2009 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: FT-ICR, hybrid ionization, electrospray, matrix-assisted laser desorption electrospray ion, MALDESI.
Book Synopsis Plume Analysis in Laser Desorption and Ablation by : Xing Fan
Download or read book Plume Analysis in Laser Desorption and Ablation written by Xing Fan and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental physical processes of mid infrared laser ablation in the context of laser desorption mass spectrometry were investigated. Understanding the mechanisms of infrared laser desorption and ablation can lead to improvements in these techniques and expand their applications. Particles were generated from glycerol irradiated at atmospheric pressure using a tunable infrared laser at wavelengths between 2.6 and 3.8 m. The wavelength dependence of size distributions of ablated particles was measured. In addition to particle sizing, fast photography was used to study the dynamics of mid infrared laser desorption and ablation. The wavelength and energy of the infrared laser can be used to effectively "tune" the composition of the desorption plume. This ability to control the composition of the plume will be used in the development of IR laser ambient ionization mass spectrometry techniques such as atmospheric pressure matrix-assisted laser desorption ionization (AP-MALDI) and matrix-assisted laser desorption electrospray ionization (MALDESI) where the ability to control material removal is critical to efficient ionization."
Book Synopsis Handbook of Advanced Chromatography /Mass Spectrometry Techniques by : Michal Holcapek
Download or read book Handbook of Advanced Chromatography /Mass Spectrometry Techniques written by Michal Holcapek and published by Elsevier. This book was released on 2017-09-07 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Advanced Chromatography /Mass Spectrometry Techniques is a compendium of new and advanced analytical techniques that have been developed in recent years for analysis of all types of molecules in a variety of complex matrices, from foods to fuel to pharmaceuticals and more. Focusing on areas that are becoming widely used or growing rapidly, this is a comprehensive volume that describes both theoretical and practical aspects of advanced methods for analysis. Written by authors who have published the foundational works in the field, the chapters have an emphasis on lipids, but reach a broader audience by including advanced analytical techniques applied to a variety of fields. Handbook of Advanced Chromatography / Mass Spectrometry Techniques is the ideal reference for those just entering the analytical fields covered, but also for those experienced analysts who want a combination of an overview of the techniques plus specific and pragmatic details not often covered in journal reports. The authors provide, in one source, a synthesis of knowledge that is scattered across a multitude of literature articles. The combination of pragmatic hints and tips with theoretical concepts and demonstrated applications provides both breadth and depth to produce a valuable and enduring reference manual. It is well suited for advanced analytical instrumentation students as well as for analysts seeking additional knowledge or a deeper understanding of familiar techniques. Includes UHPLC, HILIC, nano-liquid chromatographic separations, two-dimensional LC-MS (LCxLC), multiple parallel MS, 2D-GC (GCxGC) methodologies for lipids analysis, and more Contains both practical and theoretical knowledge, providing core understanding for implementing modern chromatographic and mass spectrometric techniques Presents chapters on the most popular and fastest-growing new techniques being implemented in diverse areas of research
Book Synopsis Atmospheric Pressure Matrix-assisted Laser Desorption Ionization with Ion Trap Mass Analysis by : Marsha Caganap Galicia
Download or read book Atmospheric Pressure Matrix-assisted Laser Desorption Ionization with Ion Trap Mass Analysis written by Marsha Caganap Galicia and published by . This book was released on 2001 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of an Atmospheric Pressure Matrix-assisted Laser Desorption/ionisation Source for Mass Spectrometry by : Claudie Kate Black
Download or read book Development of an Atmospheric Pressure Matrix-assisted Laser Desorption/ionisation Source for Mass Spectrometry written by Claudie Kate Black and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Ambient Metastable-induced Chemical Ionization Mass Spectrometry and Atmospheric Pressure Ion Mobility Spectrometry by : Glenn A. Harris
Download or read book Fundamentals of Ambient Metastable-induced Chemical Ionization Mass Spectrometry and Atmospheric Pressure Ion Mobility Spectrometry written by Glenn A. Harris and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular ionization is owed much of its development from the early implementation of electron ionization (EI). Although dramatically increasing the library of compounds discovered, an inherent problem with EI was the low abundance of molecular ions detected due to high fragmentation leading to the difficult task of the correct chemical identification after mass spectrometry (MS). These problems stimulated the research into new ionization methods which sought to "soften" the ionization process. In the late 1980s the advancements of ionization techniques was thought to have reached its pinnacle with both electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI). Both ionization techniques allowed for "soft" ionization of large molecular weight and/or labile compounds for intact characterization by MS. Albeit pervasive, neither ESI nor MALDI can be viewed as "magic bullet" ionization techniques. Both techniques require sample preparation which often included native sample destruction, and operation of these techniques took place in sealed enclosures and often, reduced pressure conditions. :New open-air ionization techniques termed "ambient MS" enable direct analysis of samples of various physical states, sizes and shapes. One particular technique named Direct Analysis In Real Time (DART) has been steadily growing as one of the ambient tools of choice to ionize small molecular weight (
Book Synopsis Advanced Mass Spectrometry for Food Safety and Quality by :
Download or read book Advanced Mass Spectrometry for Food Safety and Quality written by and published by Elsevier. This book was released on 2015-05-08 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Mass Spectrometry for Food Safety and Quality provides information on recent advancements made in mass spectrometry-based techniques and their applications in food safety and quality, also covering the major challenges associated with implementing these technologies for more effective identification of unknown compounds, food profiling, or candidate biomarker discovery. Recent advances in mass spectrometry technologies have uncovered tremendous opportunities for a range of food-related applications. However, the distinctive characteristics of food, such as the wide range of the different components and their extreme complexity present enormous challenges. This text brings together the most recent data on the topic, providing an important resource towards greater food safety and quality. Presents critical applications for a sustainable, affordable and safe food supply Covers emerging problems in food safety and quality with many specific examples. Encompasses the characteristics, advantages, and limitations of mass spectrometry, and the current strategies in method development and validation Provides the most recent data on the important topic of food safety and quality
Book Synopsis Introduction to Spatial Mapping of Biomolecules by Imaging Mass Spectrometry by : Bindesh Shrestha
Download or read book Introduction to Spatial Mapping of Biomolecules by Imaging Mass Spectrometry written by Bindesh Shrestha and published by Elsevier. This book was released on 2021-04-23 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Imaging mass spectrometry (MS) techniques are often utilized without an understanding of their underlying principles, making it difficult for scientists to determine when and how they can exploit MS to visualize their biomolecules of interest. Introduction to Spatial Mapping of Biomolecules by Imaging Mass Spectrometry is an essential reference to help scientists determine the status and strategies of biomolecule analysis, describing its many applications for diverse classes of biomolecules. The book builds a foundation of imaging MS knowledge by introducing ionization sources, sample preparation, visualization guidelines, molecule identification, quantification, data analysis, etc. The second section contains chapters focused on case studies on analyzing a biomolecule class of molecules. Case studies include an introduction/background, and a summary of successful imaging MS studies with illustrative figures and future directions. Provides the introductory foundations of imaging mass spectrometry for those new to the technique Organized by topic to facilitate a quick deep dive, allowing researchers to immediately apply the imaging MS techniques to their work Includes case studies summarizing the imaging MS techniques developed for the class of molecules
Book Synopsis Investigation of Liquid Atmospheric Pressure Matrix-assisted Laser Desorption/ionisation Mass Spectrometry (AP-MALDI MS) for the Large-scale Analysis of Liquid Samples by : Oliver John Hale
Download or read book Investigation of Liquid Atmospheric Pressure Matrix-assisted Laser Desorption/ionisation Mass Spectrometry (AP-MALDI MS) for the Large-scale Analysis of Liquid Samples written by Oliver John Hale and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lipid Analysis written by W. W. Christie and published by Elsevier. This book was released on 2010-01-10 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This well-known and highly successful book was first published in 1973 and has been completely re-written in subsequent editions (published in 1982 and 2003). This new Fourth Edition has become necessary because of the pace of developments in mass spectrometry of intact lipids, which has given recognition of lipid analysis and ‘lipidomics’ as a distinct science. To bring the book up to date with these developments, author William W. Christie is joined by co-author Xianlin Han. Although devoting considerable space to mass spectrometry and lipidomics, Lipid analysis remains a practical guide, in one volume, to the complexities of the analysis of lipids. As in past editions, it is designed to act as a primary source, of value at the laboratory bench rather than residing on a library shelf. Lipid analysis deals with the isolation, separation, identification and structural analysis of glycerolipids, including triacylglycerols, phospholipids, sphingolipids, and the various hydrolysis products of these. The chapters follow a logical sequence from the extraction of lipids to the isolation and characterization of particular lipid classes and of molecular species of each, and to the mass spectrometric analysis of lipids and lipidomics. The new influence of mass spectrometry is due mainly to the development of electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI). Most emphasis in this book is placed on ESI, which is enabling structural characterization of different lipid classes and the identification of novel lipids and their molecular species.
