Fundamental Study and Method Development for Surface-based Laser Desorption Ionization Imaging Mass Spectrometry

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ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (611 download)

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Book Synopsis Fundamental Study and Method Development for Surface-based Laser Desorption Ionization Imaging Mass Spectrometry by : Qiang Liu

Download or read book Fundamental Study and Method Development for Surface-based Laser Desorption Ionization Imaging Mass Spectrometry written by Qiang Liu and published by . This book was released on 2009 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: machaniam, metabolite, mass spectrometry, imaging mass spectrometry, MS.

Fundamental Study and Method Development for Surface-based Laser Desorption Ionization Imaging Mass Spectrometry

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (681 download)

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Book Synopsis Fundamental Study and Method Development for Surface-based Laser Desorption Ionization Imaging Mass Spectrometry by :

Download or read book Fundamental Study and Method Development for Surface-based Laser Desorption Ionization Imaging Mass Spectrometry written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: By providing both the chemical identity and the spatial organization of each component in biological samples, Imaging Mass Spectrometry (IMS) becomes an emerging tool in clinic and pharmacological study. Most work in IMS has been focused on protein and peptide mapping in biological samples to take advantage of effective analyte ionization in MALDI-MS, and also partially due to the limitation of MALDI-MS in small molecule detection. The focus of my research is to develop novel tools to image spatial distribution of small molecules in biological samples. A surface-based mass spectrometric imaging method, i.e. Desorption/Ionization on Silicon (DIOS), was used for biological surface analysis in the concept-proof investigation. More over, possible proton transferring pathways and impact of local chemical environment have been systematically investigated in the fundamental understanding of ionization mechanism of SALDI-MS. Based on the finding on the SALDI mechanism, a hybrid ionization approach, ME-SALDI has been developed by combing the strength of the conventional MALDI matrix and SALDI, where the improved detection sensitivity with reduced matrix-analyte interference and the improved imaging capability through analysis of mouse brain and heart sections has been demonstrated. In addition, the impact of vacuum stability of matrix in ME-SALDI-IMS applications has been examined. A solvent free, homogenous and reproducible sublimation method has been developed for ionic matrix in ME-SALDI, by which improved vacuum stability and MS detection have been achieved. Furthermore, a new generation of meso-porous oxide substrate was developed as a novel ME-SALDI substrate with a superior storage stability, extended detectable mass range and robust substrate preparation.

Studies on Surface-Assisted Laser Desorption/Ionization and Its Analytical Application in Imaging Mass Spectrometry

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ISBN 13 : 9781361294376
Total Pages : pages
Book Rating : 4.2/5 (943 download)

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Book Synopsis Studies on Surface-Assisted Laser Desorption/Ionization and Its Analytical Application in Imaging Mass Spectrometry by : Ho-Wai Tang

Download or read book Studies on Surface-Assisted Laser Desorption/Ionization and Its Analytical Application in Imaging Mass Spectrometry written by Ho-Wai Tang and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Studies on surface-assisted laser desorption/ionization and its analytical application in imaging mass spectrometry" by Ho-wai, Tang, 鄧浩維, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Surface-Assisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS) is an analytical technique enabling direct chemical analysis of solid samples. Analytes could be desorbed/ionized upon nitrogen laser irradiation from a SALDI substrate-coated sample, then analyzed by MS. The substrate is involved in the transfer of laser energy to the analytes, and eventually assists the desorption/ionization of analytes. The analytical performance of SALDI-MS, such as detection sensitivity, is dependent on different parameters of the substrate, such as size, morphology and form. In this thesis, the effects of several substrate parameters on the SALDI process were investigated. SALDI-MS based Imaging Mass Spectrometry (IMS) method was also developed using efficient SALDI substrate identified in the fundamental studies. IMS is a chemical-specific mapping technique which allows parallel mapping of multiple analytes in solid samples. The desorption mechanism of SALDI is investigated using two groups of substrate, the carbon allotropes and the noble metal nanoparticles. Ion desorption efficiency and internal energy transfer were probed and correlated in carbon-based SALDI. It was found that the ion desorption efficiency and internal energy transfer was in opposite order. Substrate that transferred more internal energy to ions did not show higher ion desorption efficiency. This result could not be explained by the Thermal Desorption model which was a generally believed mechanism of the SALDI desorption process. A non-thermal model, the Phase Transition model is proposed to account for the SALDI desorption process. The Phase Transition model suggests that the substrate is melted/ restructured upon laser irradiation, and this will assist ion desorption. The Phase Transition model is supported by the morphological change of carbon substrates after SALDI and high initial velocity of ions desorbed by carbon-based SALDI (> 1,000 ms-1). SALDI-MS is useful for small molecule analysis due to the relatively clean background in the low mass region. SALDI-IMS is developed and applied to the imaging of spatial distribution of small molecules in forensic and biological samples. Gold nanoparticles (AuNPs) was selected as the substrate from several other noble metal NPs. A solvent-free method, argon ion sputtering, was employed for coating AuNPs on sample surface prior to SALDI-IMS analysis. Fine details of the samples, such as the fine pattern of latent fingerprints and handwriting on questioned documents can be preserved and imaged reliably by avoiding the use of solvent. Fatty acids, drugs and ink components can be imaged in forensic samples including latent fingerprints, banknotes and checks. The solvent-free SALDI-IMS method was also applied to image the distribution of metabolites in intact animal tissues. Spatial distributions of neurotransmitters, nucleobases and fatty acids can be imaged from mouse brain and tumor tissue sections. DOI: 10.5353/th_b4714555 Subjects: Mass spectrometry Imaging systems

MALDI Mass Spectrometry Imaging

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Publisher : Royal Society of Chemistry
ISBN 13 : 1839165200
Total Pages : 403 pages
Book Rating : 4.8/5 (391 download)

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Book Synopsis MALDI Mass Spectrometry Imaging by : Tiffany Porta Siegel

Download or read book MALDI Mass Spectrometry Imaging written by Tiffany Porta Siegel and published by Royal Society of Chemistry. This book was released on 2021-11-23 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers, in a single resource, knowledge about matrix-assisted laser desorption ionisation (MALDI) mass spectrometry imaging. It includes fundamentals in the MALDI ionisation process, different source geometries and capabilities, detection systems and the latest research and applications in the range of –omics area as well as other broader areas. Chapters will touch on dedicated sample preparation protocols specific for the class of compounds of interest, instrumentation used with strengths and current limitations, strategies for structural analysis and identification and applications. It will be a welcomed addition to the literature in this fast-moving field and provide a guide to new innovations and applications especially in metabolomics and proteomics. With contributions from leading experts, this book will be an authoritative guide to this method. Aimed at postgraduate and professional researchers, in academia and in the industrial market where it has direct application to clinical research. It will be a supporting volume for those just entering the field as well as experienced practitioners.

Laser Desorption Ionization Mass Spectrometry Based on Nanophotonic Structure: From Material Design to Mechanistic Understanding

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Publisher : Springer Nature
ISBN 13 : 981996878X
Total Pages : 107 pages
Book Rating : 4.8/5 (199 download)

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Book Synopsis Laser Desorption Ionization Mass Spectrometry Based on Nanophotonic Structure: From Material Design to Mechanistic Understanding by : Moon-Ju Kim

Download or read book Laser Desorption Ionization Mass Spectrometry Based on Nanophotonic Structure: From Material Design to Mechanistic Understanding written by Moon-Ju Kim and published by Springer Nature. This book was released on 2023-11-11 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents innovative laser desorption ionization (LDI)-active nanophotonic structures for addressing the challenges that matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) is currently facing and for enhancing LDI efficiency. It presents a variety of cutting-edge nanophotonic structures to satisfy the mass-analytical needs of sensitivity, reproducibility, and quantification. As opposed to the commercialized, conventional organic matrix used in MALDI-MS, these nanostructures are validated to be highly effective in detecting small metabolites and drugs, highlighting their considerable potential in the mass spectrometry field. It also systematically elucidates fundamental LDI processes in terms of the photo-thermal, electronic, and structural characteristics of nanophotonic structures, offering mechanistic knowledge of LDI-MS. Even though LDI-MS performance is heavily influenced by a number of nanostructure parameters, relatively little is known about the LDI processes associated with those characteristics. An in-depth understanding of nanostructure characteristics and LDI mechanisms thus paves the way for more effective, rational design and development of nanostructures with improved LDI capabilities. Further, with a focus on multiple cascades in nanostructure functions in response to laser pulse stimuli, this book provides detailed, step-by-step procedures to design and construct a nanophotonic, LDI-active platform, which may serve as a roadmap for graduate students in the field of mass spectrometry. Readers, including graduate students, researchers, and experts working in the related areas of mass spectrometry, nanophotonics, and material science and material engineering, will find a wealth of useful information in this book.

Studies on Surface-assisted Laser Desorption/ionization and Its Analytical Application in Imaging Mass Spectrometry

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ISBN 13 :
Total Pages : 382 pages
Book Rating : 4.:/5 (779 download)

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Book Synopsis Studies on Surface-assisted Laser Desorption/ionization and Its Analytical Application in Imaging Mass Spectrometry by : Ho-wai Tang

Download or read book Studies on Surface-assisted Laser Desorption/ionization and Its Analytical Application in Imaging Mass Spectrometry written by Ho-wai Tang and published by . This book was released on 2011 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Photoionization and Photo-Induced Processes in Mass Spectrometry

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Publisher : John Wiley & Sons
ISBN 13 : 3527335102
Total Pages : 448 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Photoionization and Photo-Induced Processes in Mass Spectrometry by : Ralf Zimmermann

Download or read book Photoionization and Photo-Induced Processes in Mass Spectrometry written by Ralf Zimmermann and published by John Wiley & Sons. This book was released on 2021-07-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of laser-induced ionization processes for mass spectrometry analysis Drawing on the expertise of the leading academic and industrial research groups involved in the development of photoionization methods for mass spectrometry, this reference for analytical scientists covers both the theory and current applications of photo-induced ionization processes. It places widely used techniques such as MALDI side by side with more specialist approaches such as REMPI and RIMS, and discusses leading edge developments in ultrashort laser pulse desorption, to give readers a complete picture of the state of the technology. Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications starts with a complete overview of the fundamentals of the technique, covering the basics of the gas phase ionization as well as those of laser desorption and ablation, pulse photoionization, and single particle ionization. Numerous application examples from different analytical fields are described that showcase the power and the wide scope of photo ionization in mass spectrometry. -The first general reference book on photoionization techniques for mass spectrometry -Examines technologies and applications of gas phase resonance-enhanced multiphoton ionization mass spectrometry (REMPI-MS) and gas phase resonance ionization mass spectrometry (RIMS) -Provides complete coverage of popular techniques like MALDI -Discusses the current and potential applications of each technology, focusing on process and environmental analysis Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications is an excellent book for spectroscopists, analytical chemists, photochemists, physical chemists, and laser specialists.

Advances in MALDI and Laser-Induced Soft Ionization Mass Spectrometry

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Publisher : Springer
ISBN 13 : 3319048198
Total Pages : 287 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Advances in MALDI and Laser-Induced Soft Ionization Mass Spectrometry by : Rainer Cramer

Download or read book Advances in MALDI and Laser-Induced Soft Ionization Mass Spectrometry written by Rainer Cramer and published by Springer. This book was released on 2015-11-09 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the state-of-the-art of modern MALDI (matrix-assisted laser desorption/ionization) and its applications. New applications and improvements in the MALDI field such as biotyping, clinical diagnosis, forensic imaging, and ESI-like ion production are covered in detail. Additional topics include MS imaging, biotyping/speciation and large-scale, high-speed MS sample profiling, new methods based on MALDI or MALDI-like sample preparations, and the advantages of ESI to MALDI MS analysis. This is an ideal book for graduate students and researchers in the field of bioanalytical sciences. This book also: • Showcases new techniques and applications in MALDI MS • Demonstrates how MALDI is preferable to ESI (electrospray ionization) • Illustrates the pros and cons associated with biomarker discovery studies in clinical proteomics and the various application areas, such as cancer proteomics

Laser Desorption/ionization Mass Spectrometry for Direct Profiling and Imaging of Small Molecules from Raw Biological Materials

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ISBN 13 :
Total Pages : 201 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Laser Desorption/ionization Mass Spectrometry for Direct Profiling and Imaging of Small Molecules from Raw Biological Materials by :

Download or read book Laser Desorption/ionization Mass Spectrometry for Direct Profiling and Imaging of Small Molecules from Raw Biological Materials written by and published by . This book was released on 2008 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Matrix-assisted laser desorption/ionization(MALDI) mass spectrometry(MS) has been widely used for analysis of biological molecules, especially macromolecules such as proteins. However, MALDI MS has a problem in small molecule (less than 1 kDa) analysis because of the signal saturation by organic matrixes in the low mass region. In imaging MS (IMS), inhomogeneous surface formation due to the co-crystallization process by organic MALDI matrixes limits the spatial resolution of the mass spectral image. Therefore, to make laser desorption/ionization (LDI) MS more suitable for mass spectral profiling and imaging of small molecules directly from raw biological tissues, LDI MS protocols with various alternative assisting materials were developed and applied to many biological systems of interest. Colloidal graphite was used as a matrix for IMS of small molecules for the first time and methodologies for analyses of small metabolites in rat brain tissues, fruits, and plant tissues were developed. With rat brain tissues, the signal enhancement for cerebroside species by colloidal graphite was observed and images of cerebrosides were successfully generated by IMS. In addition, separation of isobaric lipid ions was performed by imaging tandem MS. Directly from Arabidopsis flowers, flavonoids were successfully profiled and heterogeneous distribution of flavonoids in petals was observed for the first time by graphite-assisted LDI(GALDI) IMS.

Development of Matrix-assisted Laser Desorption Ionization-mass Spectrometry Imaging (MALDI-MSI) for Plant Metabolite Analysis

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ISBN 13 :
Total Pages : 135 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Development of Matrix-assisted Laser Desorption Ionization-mass Spectrometry Imaging (MALDI-MSI) for Plant Metabolite Analysis by :

Download or read book Development of Matrix-assisted Laser Desorption Ionization-mass Spectrometry Imaging (MALDI-MSI) for Plant Metabolite Analysis written by and published by . This book was released on 2014 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents efforts to improve the methodology of matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) as a method for analysis of metabolites from plant tissue samples. The first chapter consists of a general introduction to the technique of MALDI-MSI, and the sixth and final chapter provides a brief summary and an outlook on future work.

Development of Matrix-assisted Laser Desorption/ionization and Liquid Chromatography - Electrospray Ionization Based Mass Spectrometric Techniques for Characterizing and Quantifying Endogenous and Therapeutic Biomolecules

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ISBN 13 :
Total Pages : 463 pages
Book Rating : 4.:/5 (988 download)

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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.

Ambient Ionization Mass Spectrometry in Life Sciences

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Publisher : Elsevier
ISBN 13 : 0128172215
Total Pages : 292 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Ambient Ionization Mass Spectrometry in Life Sciences by : Kei Zaitsu

Download or read book Ambient Ionization Mass Spectrometry in Life Sciences written by Kei Zaitsu and published by Elsevier. This book was released on 2019-11-06 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ambient Ionization Mass Spectrometry in Life Sciences: Principles and Applications is a systematic introduction to this rapidly expanding area of study. Underlying principles of each technique are explained in detail, along with discussions on their applications across life science disciplines. Ambient ionization has recently emerged as one of the hottest and fastest growing topics in mass spectrometry, hence this book is not just for analysts and researchers who use and study mass spectrometry. This volume would be of interest to anyone who works in or studies analytical chemistry, omics sciences (including metabolomics), pharmacokinetics, forensic science or drug analysis. Covers the most up-to-date techniques, including DART, DCBI, DESI, PESI, PSI, REIMS and laser-based ambient ionization Includes easy-to-understand pros and cons of each ionization technique to aid in decision-making Provides plentiful examples of life science applications

Medical Applications of Mass Spectrometry

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Publisher : Elsevier
ISBN 13 : 0080554652
Total Pages : 607 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Medical Applications of Mass Spectrometry by : Karoly Vekey

Download or read book Medical Applications of Mass Spectrometry written by Karoly Vekey and published by Elsevier. This book was released on 2011-08-11 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mass spectrometry is fast becoming an indispensable field for medical professionals. The mass spectrometric analysis of metabolites and proteins promises to revolutionize medical research and clinical diagnostics. As this technology rapidly enters the medical field, practicing professionals and students need to prepare to take full advantage of its capabilities. Medical Applications of Mass Spectrometry addresses the key issues in the medical applications of mass spectrometry at the level appropriate for the intended readership. It will go a long way to help the utilization of mass spectrometry in medicine.The book comprises five parts. A general overview is followed by a description of the basic sampling and separation methods in analytical chemistry. In the second part a solid foundation in mass spectrometry and modern techniques of data analysis is presented. The third part explains how mass spectrometry is used in exploring various classes of biomolecules, including proteins and lipids. In the fourth section mass spectrometry is introduced as a diagnostic tool in clinical treatment, infectious pathogen research, neonatal diagnostics, cancer, brain and allergy research, as well as in various fields of medicine: cardiology, pulmonology, neurology, psychiatric diseases, hemato-oncology, urologic diseases, gastrointestinal diseases, gynecology and pediatrics. The fifth part covers emerging applications in biomarker discovery and in mass spectrometric imaging. * Provides a broad look at how the medical field is benefiting from advances in mass spectrometry.* Guides the reader from basic principles and methods to cutting edge applications.* There is NO comparable book on the market to fill this fast growing field.

Exploration of the Fundamentals and Quantitative Applications of Matrix Assisted Laser Desorption Ionization Time-of-flight Mass Spectrometry (MALDI TOFMS) in Polymer Analysis

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Publisher :
ISBN 13 :
Total Pages : 638 pages
Book Rating : 4.:/5 (83 download)

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Book Synopsis Exploration of the Fundamentals and Quantitative Applications of Matrix Assisted Laser Desorption Ionization Time-of-flight Mass Spectrometry (MALDI TOFMS) in Polymer Analysis by : Renata Szyszka

Download or read book Exploration of the Fundamentals and Quantitative Applications of Matrix Assisted Laser Desorption Ionization Time-of-flight Mass Spectrometry (MALDI TOFMS) in Polymer Analysis written by Renata Szyszka and published by . This book was released on 2012 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advisor: Kevin G. Owens.

Mass Spectrometry Imaging in Food Analysis

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Publisher : CRC Press
ISBN 13 : 0429765304
Total Pages : 215 pages
Book Rating : 4.4/5 (297 download)

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Book Synopsis Mass Spectrometry Imaging in Food Analysis by : Leo M.L. Nollet

Download or read book Mass Spectrometry Imaging in Food Analysis written by Leo M.L. Nollet and published by CRC Press. This book was released on 2020-04-29 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food contains various compounds and many technologies exist to analyze those molecules of interest. However, the analysis of the spatial distribution of those compounds using conventional technology, such as liquid chromatography-mass spectrometry or gas chromatography-mass spectrometry is difficult. Mass spectrometry imaging (MSI) is a mass spectrometry technique to visualize the spatial distribution of molecules, as biomarkers, metabolites, peptides or proteins by their molecular masses. Despite the fact that MSI has been generally considered a qualitative method, the signal generated by this technique is proportional to the relative abundance of the analyte and so quantification is possible. Mass Spectrometry Imaging in Food Analysis, a volume in the Food Analysis and Properties Series, explains how the novel use of matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) will be an ideal complementary approach. MALDI-MSI is a two-dimensional MALDI-MS technology that can detect compounds in a tissue section without extraction, purification, separation, or labeling. It can be used to visualize the spatial distribution of biomolecules in foods. Features: Explains the novel use of matrix-assisted laser desorption/ionization mass spectrometry imaging in food analysis Describes how MALDI-MSI will be a useful technique for optical quality assurance. Shows how MALDI-MSI detects food contaminants and residues Covers the historical development of the technology While there are a multitude of books on mass spectrometry, none focus on food applications and thus this book is ideally suited to food scientists, food industry personnel engaged in product development, research institutions, and universities active in food analysis or chemical analysis. Also available in the Food Analysis and Properties Series: Food Aroma Evolution: During Food Processing, Cooking, and Aging, edited by Matteo Bordiga and Leo M.L. Nollet (ISBN: 9781138338241) Ambient Mass Spectroscopy Techniques in Food and the Environment, edited by Leo M.L. Nollet and Basil K. Munjanja (ISBN: 9781138505568) Hyperspectral Imaging Analysis and Applications for Food Quality, edited by N.C. Basantia, Leo M.L. Nollet, and Mohammed Kamruzzaman (ISBN: 9781138630796) For a complete list of books in this series, please visit our website at: www.crcpress.com/Food-Analysis--Properties/book-series/CRCFOODANPRO

Advancements in Ambient Ionization and MALDI Mass Spectrometry Imaging Methods and Their Application in Disease Diagnosis and Characterization

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)

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Book Synopsis Advancements in Ambient Ionization and MALDI Mass Spectrometry Imaging Methods and Their Application in Disease Diagnosis and Characterization by : Monica Lin

Download or read book Advancements in Ambient Ionization and MALDI Mass Spectrometry Imaging Methods and Their Application in Disease Diagnosis and Characterization written by Monica Lin and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct analysis using mass spectrometry (MS) techniques provide a powerful approach to investigate the molecular composition and spatial distribution of complex samples with high sensitivity and specificity. In particular, these techniques have been widely applied to achieve rapid molecular analysis of complex clinical samples including native tissue samples and biospecimens. Several types of direct analysis MS techniques have been developed for tissue analysis including a variety of ambient ionization MS techniques and matrix-assisted laser desorption ionization (MALDI) MS. Notably, both approaches are highly capable of performing molecular imaging of endogenous metabolites, lipids, and proteins to characterize tissue samples. Furthermore, through applying ambient ionization and MALDI MS imaging techniques, new insights into disease state can be learned by investigating the correlation between spatially resolved molecular information with histological evaluation in tissue samples. Although several other types of direct analysis MS techniques have been developed, this dissertation focuses on advancements using solvent-based ambient ionization MS (e.g. desorption electrospray ionization (DESI)) and MALDI MS imaging methods for tissue analysis and disease characterization. In Chapter 2, a fundamental and systematic investigation of the affect of solvent properties on molecular extraction processes in solvent-based ambient ionization was performed. In Chapter 3, the performance of DESI MS imaging for the analysis and statistical classification of thyroid fine needle aspiration (FNA) biopsies using different solvents, sources, and high-performance MS systems was evaluated. Next, Chapter 4 describes the development of a sample preparation method for MALDI MS imaging to improve detection of various endogenous proteins by selectively reducing signal from hemoglobin proteins in blood-rich tissues. Lastly, in Chapter 5, various MALDI imaging MS methods were applied to characterize the protein and N-glycan molecular signatures in endometriosis tissues and provide new insights into possible mechanisms of endometriosis development and progression. Collectively, this dissertation provides insights into the fundamental aspects, method developments, and applications of direct analysis MS techniques including solvent-based ambient ionization MS and MALDI MS imaging for tissue analysis. Furthermore, this dissertation showcases the exciting and significant potential of direct analysis MS techniques to solve current challenges in the clinic and provide new insights in healthcare and medicine

Fundamental Studies of Matrix-assisted Laser Desorption/ionization Time-of-flight Mass Spectrometry (MALDI-TOF/MS) and Its Applications to the Analysis of Biological Materials

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Publisher :
ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Fundamental Studies of Matrix-assisted Laser Desorption/ionization Time-of-flight Mass Spectrometry (MALDI-TOF/MS) and Its Applications to the Analysis of Biological Materials by : Yongdong Zhu

Download or read book Fundamental Studies of Matrix-assisted Laser Desorption/ionization Time-of-flight Mass Spectrometry (MALDI-TOF/MS) and Its Applications to the Analysis of Biological Materials written by Yongdong Zhu and published by . This book was released on 1999 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: