Author: Koon-sing HoPublisher:
ISBN:
Category : Cells
Languages : en
Pages : 490
Book Description
Single-cell Analysis Using Inductively Coupled Plasma Mass Spectrometry
Author: Koon-sing HoSingle-Cell Analysis Using Inductively Coupled Plasma Mass Spectrometry
Author: Koon-Sing HoPublisher: Open Dissertation Press
ISBN: 9781361332337
Category :
Languages : en
Pages :
Book Description
This dissertation, "Single-cell Analysis Using Inductively Coupled Plasma Mass Spectrometry" by Koon-sing, Ho, 何觀陞, 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: The technique of single-cell analysis using time-resolved inductively coupled plasma-mass spectrometry has been characterized and optimized. Determination of the metal contents of individual cells provides data on the natural metal contents of the cells and the corresponding distributions in the population. The distribution is a useful indicator of the health and the state of development of the cells. The contents of sorbed metals of individual cells over a duration of time are required to understand the dynamics of metal-cell interactions. A green alga, Chlorella vulgaris, was used as a model biological cell in this study. The criteria and procedures for proper sampling of the cells into the ICP will be discussed. Ideally, each ICP-MS spike corresponds to one cell, but cell overlapping occurs because the cells enter the ICP randomly. Selection of cell number density and sample uptake rate to minimize spike overlapping will be discussed. A cell counting method based on the frequency of the spikes has been developed. The distribution of the metal contents of cells was determined by measuring large number of spikes. The minimum number of spikes required was determined by statistical analysis. The spike intensity distribution was correlated with the size distribution of the cells. The peak maximum of the spike intensity distribution was used for the determination of the average metal content of the cells. The use of the peak maximum reduces errors due to spike overlapping in the measurement. Quantitative determination of the metal contents was achieved using standard particles for calibration. Errors in calibration using standard solution nebulization were discussed. The technique was applied in the study of metal-cell interactions. Sorption of heavy metal ions (as environmental pollutants) by Chlorella vulgaris, and uptake of biometal (as nutrient) and metallodrug (as toxin) by Helicobacter pylori were studied. The technique requires simple sample preparation of removing the culture medium by filtration or centrifugation. The health state of the cells in the presence of toxic metals was related to the change in cell number density. The ratio of the FWHM of the spike intensity distributions of the sorbed metals to the natural metal contents of the cells is identified as a possible indicator of the location of the sorbed metals. The kinetics of metal sorption by the cells can be studied using a single cell culture. The method reduces errors due to uncertainties in cell number density and metal concentration in multiple samples that are required in conventional methods. The optimal ICP-MS sampling depth of 17 elements, introduced into the ICP by conventional solution nebulization of aqueous standard solutions, has been determined. The elements were selected to represent a wide range of boiling points and ionization potentials. Boiling point of the dried residues and ionization potential of the analyte element were identified as the major factors that determine the optimal sampling position. Since dried sample solution aerosols are effectively nanoparticles, the study provides useful insight on the optimization of the operation conditions and calibration strategies for single-particle analysis using ICP-MS. DOI: 10.5353/th_b4985851 Subjects: Inductively coupled plasma mass spectrometry Cells - Analysis
Single-cell Analysis Using Inductively Coupled Plasma Mass Spectrometry
Author: Koon-sing HoSingle Cell Analysis
Author: Dario AnselmettiPublisher: John Wiley & Sons
ISBN: 3527626654
Category : Science
Languages : en
Pages : 284
Book Description
The first-ever comprehensive overview of the methods used in this key technology in modern biology provides the latest working knowledge needed by every scientist entering this growing field. It covers all the current technology and application areas, from microscopy and spectroscopy to proteomics and microfluidics.
Inductively Coupled Plasma Mass Spectrometry
Author: Akbar MontaserPublisher: John Wiley & Sons
ISBN: 0471186201
Category : Science
Languages : en
Pages : 1020
Book Description
Alles über ICP-MS in einem Band! Renommierte Autoren informieren Sie über Theorie, Anwendung und instrumentelle Ausrüstung von A bis Z. Grundlagen werden ebenso behandelt wie neueste Entwicklungen, etwa bei Probenpräparation und Einsatz von Hochfrequenzgeneratoren. Enthält eine Fülle bisher unveröffentlichten Materials!
Yeast Stress Responses
Author: Stefan HohmannPublisher: Springer Science & Business Media
ISBN: 3540456112
Category : Science
Languages : en
Pages : 398
Book Description
Every cell has developed mechanisms to respond to changes in its environment and to adapt its growth and metabolism to unfavorable conditions. The unicellular eukaryote yeast has long proven as a particularly useful model system for the analysis of cellular stress responses, and the completion of the yeast genome sequence has only added to its power This volume comprehensively reviews both the basic features of the yeast genral stress response and the specific adapations to different stress types (nutrient depletion, osmotic and heat shock as well as salt and oxidative stress). It includes the latest findings in the field and discusses the implications for the analysis of stress response mechanisms in higher eukaryotes as well.
Single Cell Analysis
Author: Miodrag GužvićPublisher: Springer Nature
ISBN: 1071636219
Category : Science
Languages : en
Pages : 263
Book Description
This volume explores the latest advancements and techniques used to study cell analysis, their capabilities, and the type of results that can be obtained. The chapters in this book cover topics such as FACS; fluorescence microscopy; organic spectroscopy such as MALDI; inorganic spectroscopy such as ICP-MS; and sequencing. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and practical, Single Cell Analysis: Methods and Protocols is a valuable tool for any researcher interested in learning more about this important and developing field.
Inductively Coupled Plasma Spectrometry and its Applications
Author: Steve J. HillPublisher: John Wiley & Sons
ISBN: 1405172584
Category : Science
Languages : en
Pages : 448
Book Description
The first edition of Inductively Coupled Plasma Spectrometry andits Applications was written as a handbook for users who wanted abetter understanding of the theory augmented by a practical insightof how best to approach a range of applications, and to provide auseful starting point for users trying an approach or technique newto them. These objectives have been retained in the second editionbut a slight shift in emphasis gives the volume an overallperspective that is more forward looking. Structured into 11 chapters, the current edition is a thoroughrevision of the original, covering the principles of inductivelycoupled plasmas, instrumentation, methodology and applicationswithin environmental analysis, earth science, food science andclinical medicine. Each chapter, written by internationallyrecognised leaders in their specific subject areas, provides enoughdetail to be useful to both the new and experienced users. Fullaccount is taken of recent developments, such as high resolutioninstruments, novel detection systems and electrospraytechniques. Written for all analytical scientists but particularly thoseinvolved in atomic spectroscopy and in environmental, geochemical,clinical or food analysis, this timely and informative book will bean essential reference in their use of inductively coupled plasmasto achieve their own scientific goals.
Applied Metallomics
Author: Yu-Feng LiPublisher: John Wiley & Sons
ISBN: 3527351442
Category : Science
Languages : en
Pages : 498
Book Description
Applied Metallomics A groundbreaking survey of a field that unites the sciences The metallome of a cellular compartment, such as an enzyme, is the variety and arrangement of its metal ions. Metallomics is the multidisciplinary study of the metallome and its many important interactions with biological molecules and systems. It exists at the intersection of biochemistry and materials science, offering crucial insights into biological processes in which iron, for instance, plays a pivotal role. Applied Metallomics is an up-to-the-minute overview of research developments in metallomics, offering both analysis and applications in a vast array of scientific and industrial areas. Moving freely between material science, environmental science, health science, and more, it offers a comprehensive survey of this interdisciplinary research area. As the field of metallomics continues to develop and its applications expand, this book will only be a need of the hour Applied Metallomics readers will also find: Detailed treatment of nanometallomics, environmetallomics, agrometallomics, and many more Coverage of machine learning and artificial intelligence techniques with applications in metallomics An author team with vast international research experiences Applied Metallomics is ideal for researchers in many areas touched by metallomics, that include chemistry, biochemistry, biotechnology, bioinorganic chemistry, and more.
ICP-MS and Trace Element Analysis as Tools for Better Understanding Medical Conditions
Author: Publisher: Elsevier
ISBN: 0444643486
Category : Science
Languages : en
Pages : 200
Book Description
ICP-MS and Trace Element Analysis as Tools for Better Understanding Medical Conditions, Volume 97 discusses trace elements and how they play an important role in biological functions and metabolism in the human body. Chapters cover Biomedical analysis by ICP-MS: A focus on single cell, Advanced statistical tools and machine learning applied to trace element analysis associated with medical conditions, ICP-MS as a tool to understand trace element homeostasis in neurological disorders, High-precision isotopic analysis of essential mineral elements – possibilities for medical diagnosis and prognosis, Exploring ICP-MS as a versatile technique: From imaging to chemical speciation, and more. Discusses the latest diagnosis/pathologies using ICP-MS analysis Covers metals, isotopes and metalorganic species for medical conditions Includes ICP-MS-based techniques