Download or read book Development of the Scanning Electrochemical Microscope for Imaging Biological Cells written by Heather M. Miller and published by . This book was released on 1999 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Electrochemical Microscopy written by Allen J. Bard and published by CRC Press. This book was released on 2022-07-29 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its simplicity of use and quantitative results, Scanning Electrochemical Microscopy (SECM) has become an indispensable tool for the study of surface reactivity. The fast expansion of the SECM field over several years has been fueled by the introduction of new probes, commercially available instrumentation, and new practical applications. Scanning Electrochemical Microscopy, Third Edition offers essential background and in-depth overviews of specific applications in self-contained chapters. The vitality and growing popularity of SECM over the past 30+ years have largely been determined by its versatility and capability to remain useful in the changing scientific and technological environments. New applications reported during the last decade reflect significant current activity in biomedical and energy-related research. This thoroughly updated edition provides up-to-date comprehensive reviews of different aspects of SECM. New chapters by renowned professionals in the field cover recent advances in different areas of SECM including nanoSECM, surface reactions and films, batteries, and fuel cells. Expanded coverage of electrocatalysis and surface interrogation as well as photoelectrochemistry and photoelectrocatalysis are also provided. Useful for a broad range of interdisciplinary research—from biological systems to nanopatterning—this book is invaluable to all interested in learning and applying SECM.
Download or read book Scanning Electrochemical Microscopy written by Allen J. Bard and published by CRC Press. This book was released on 2001-04-18 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning Electrochemical Microscopy describes the theory and operating principles of scanning electrochemical microscopy (SECM), including instrumentation, tip preparation, imaging techniques and potentiometric probes. The book explores applications relevant to electron transfer reactions, reaction kinetics, chemical events at interfaces, biologica
Download or read book Scanning Electrochemical Microscopy Second Edition written by Allen J. Bard and published by CRC Press. This book was released on 2012-04-16 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its simplicity of use and quantitative results, Scanning Electrochemical Microscopy (SECM) has become an indispensable tool for the study of surface reactivity. The fast expansion of the SECM field during the last several years has been fueled by the introduction of new probes, commercially available instrumentation, and new practical applications. Scanning Electrochemical Microscopy, Second Edition offers essential background and in-depth overviews of specific applications in self-contained chapters. Recent methodological advances have greatly increased the capacity of SECM to characterize interfaces at the nanoscale and to obtain molecular-level chemical information. This thoroughly updated edition retains original chapters describing the principles of SECM measurements, instrumentation, preparation of SECM probes, imaging methodologies, and theory and offers: New chapters on studies of single biological cells, corrosion, electrocatalysis, and hybrid techniques Descriptions of recent advances of SECM in several areas of current interest: biotechnological applications, nanofabrication and surface patterning, and molecular transport across films and membranes Discussion of the ongoing shift from micrometer-scale experiments to the nanoscale Useful for a broad range of interdisciplinary research—from biological systems to probing reactions at the liquid–liquid interface—this book is invaluable to all interested in learning and applying SECM.
Download or read book Scanning Electron Microscopy for the Life Sciences written by Heide Schatten and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in scanning electron microscopy (SEM) have resulted in a wealth of new applications for cell and molecular biology, as well as related biological disciplines. It is now possible to analyze macromolecular complexes within their three-dimensional cellular microenvironment in near native states at high resolution and to identify specific molecules and their structural and molecular interactions. New approaches include cryo-SEM applications and environmental SEM (ESEM), staining techniques and processing applications combining embedding and resin-extraction for imaging with high resolution SEM, and advances in immuno-labeling. New developments include helium ion microscopy, automated block-face imaging combined with serial sectioning inside an SEM chamber, and Focused Ion Beam Milling (FIB) combined with block-face SEM. With chapters written by experts, this guide gives an overview of SEM and sample processing for SEM and highlights several advances in cell and molecular biology that greatly benefited from using conventional, cryo, immuno and high-resolution SEM.
Download or read book Liquid Cell Electron Microscopy written by Frances M. Ross and published by Cambridge University Press. This book was released on 2017 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2.6.2 Electrodes for Electrochemistry
Download or read book Scanning Electrochemical Microscopy with Impedance Based Tip Position Modulation for Imaging of Biological Cells written by Zaheer Ahmed and published by . This book was released on 2007 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Electron Microscopy for the Life Sciences written by Heide Schatten and published by Cambridge University Press. This book was released on 2012-12-06 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in scanning electron microscopy (SEM) have resulted in a wealth of new applications for cell and molecular biology, as well as related biological disciplines. It is now possible to analyze macromolecular complexes within their three-dimensional cellular microenvironment in near native states at high resolution and to identify specific molecules and their structural and molecular interactions. New approaches include cryo-SEM applications and environmental SEM (ESEM), staining techniques and processing applications combining embedding and resin-extraction for imaging with high resolution SEM, and advances in immuno-labeling. New developments include helium ion microscopy, automated block-face imaging combined with serial sectioning inside an SEM chamber, and Focused Ion Beam Milling (FIB) combined with block-face SEM. With chapters written by experts, this guide gives an overview of SEM and sample processing for SEM and highlights several advances in cell and molecular biology that greatly benefited from using conventional, cryo, immuno and high-resolution SEM.
Download or read book Liquid Cell Electron Microscopy written by Frances M. Ross and published by Cambridge University Press. This book was released on 2016-11-24 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book on the topic, with each chapter written by pioneers in the field, this essential resource details the fundamental theory, applications, and future developments of liquid cell electron microscopy. This book describes the techniques that have been developed to image liquids in both transmission and scanning electron microscopes, including general strategies for examining liquids, closed and open cell electron microscopy, experimental design, resolution, and electron beam effects. A wealth of practical guidance is provided, and applications are described in areas such as electrochemistry, corrosion and batteries, nanocrystal growth, biomineralization, biomaterials and biological processes, beam-induced processing, and fluid physics. The book also looks ahead to the future development of the technique, discussing technical advances that will enable higher resolution, analytical microscopy, and even holography of liquid samples. This is essential reading for researchers and practitioners alike.
Download or read book Investigation of Live Cell Processes Using Scanning Electrochemical Microscopy written by David Polcari and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis presents an electrochemical approach for the non-invasive study of biological systems, and demonstrates the usefulness of scanning electrochemical microscopy (SECM) for quantification of chemical flux in live cells. We first explore the presence of D-serine within the brain. This neurotransmitter plays an important role in proper brain development, and has also been linked to several pathological diseases such as schizophrenia and Alzheimer's disease. Consequently, quantification of local changes in D-serine concentration is essential to further understanding of its role in these processes. A biosensor was thus developed for the detection of D-serine with high sensitivity. Using this microscale biosensor, the release of endogenous D-serine was measured in vivo inside the brain of Xenopus laevis tadpoles, revealing an overall concentration of 2.5 μM. However, the primary site and mechanism of release of D-serine remained unclear, requiring a more localized measurement. After optimizing for improved response time and selectivity, the biosensor was used in a SECM configuration to measure localized release of D-serine from a model system. This SECM methodology provided quantitative imaging of D-serine with high spatial resolution, and could be useful to investigate chemical flux in other biological samples. We then shifted our focus to quantitative imaging of another complex live cell process, specifically multidrug resistance. This defensive mechanism allows cancer cells to pump out chemotherapeutic drugs before they can kill the cell, severely impeding treatment success. Most investigations of transmembrane efflux pumps, including multidrug resistance-associated protein 1 (MRP1), focus on expression to determine their effect in specific cancer types. Researchers have been unable to establish a clear correlation between expression and patient survival. However, the relationship between transporter expression and functional activity is often overlooked. Using SECM with complementary redox mediators and novel cell patterning substrates, we measured MRP1 functional activity in single cancer cells. By challenging parental cell lines with doxorubicin, a drug used in many chemotherapy regimens, we produced six cell populations with increasing MRP1 expression, and measured their concurrent functional activity. This comparative study revealed that in fact MRP1 expression and functional activity do not correlate, and suggest that the measurement of functional activity should be prioritized to identify the effect of MRP1 on chemotherapy treatment success." --
Download or read book Scanning Ion Conductance Microscopy written by Tilman E. Schäffer and published by Springer Nature. This book was released on 2022-09-28 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a selection of recent developments in scanning ion conductance microscopy (SICM) technology and applications. In recent years, SICM has been applied in an ever-increasing number of areas in the bioanalytical sciences. SICM is based on an electrolyte-filled nanopipette with a nanometer-scale opening, over which an electric potential is applied. The induced ion current is measured, which allows to directly or indirectly quantify various physical quantities such as pipette-sample distance, ion concentration, sample elastic modulus among many others. This makes SICM well suited for applications in electrolytes - most prominently for the study of live cells. This book starts with a historic overview starting from the days of the invention of SICM by Paul Hansma at the University of California at Santa Barbara in 1989. SICM is a member of the family of scanning probe microscopies. It is related to another prominent member of the family, atomic force microscopy (AFM), which has found application in almost any field of nanoscale science. The advantages and disadvantages of SICM over AFM are also outlined. One of the most effective and break-through applications of SICM nanopipettes is in electrochemistry. The different routes and applications for doing electrochemistry using nanopipettes are also discussed. In addition the book highlights the ability of SICM for surface positioning with nanometer precision to open up new vistas in patch clamp measurements subcellular structures. Finally the book presents one research area where SICM has been making a lot of contributions, cardiac research and the endeavors to combine SICM with super-resolution optical microscopy for highest-resolution joint topography and functional imaging.
Download or read book Electron Microscopy Based Tools for Imaging Cellular Circuits and Organisms written by Yoshiyuki Kubota and published by Frontiers Media SA. This book was released on 2019-12-30 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Microscopic Cell for Scanning Electrochemical Microscopy written by Thomas Wayne Spaine and published by . This book was released on 1999 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Scanning Electrochemical Microscopy in Biological Systems written by Dipankar Koley and published by . This book was released on 2011 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main theme in this dissertation is to develop Scanning Electrochemical Microscopy (SECM) based electroanalytical techniques to study quantitative biology in real time. The multidrug resistance (MDR) phenomenon in live cancer cells was studied using mimic drug molecules such as menadione with the aid of SECM. Real time quantitative detection of thiodione (menadione-conjugate) pumped out of the cells was determined to be 140 [mu]M due to exposure of 500 [mu]M menadione to the cells. Selective blocking of these MDR pumps in live intact cells was also achieved by small molecules such as MK571 as well as by the MDR specific antibody. An approximately 50% drop in thiodione flux was observed in both cases of MDR pumps inhibition. This SECM technique was also extended to measure the permeability of a highly charged hydrophilic molecule passing through the membrane of a single living cell. The permeability was measured to be 6.5 ± 2.0 × 10-6 m/s. Real time monitoring of morphological changes in a live HeLa cell due to addition of varying concentration of surfactant such as Triton X-100 was also demonstrated by SECM. This electroanalytical technique was also expanded to study quantitative microbiology. Real time quantitative detection of pyocyanin produced by Pseudomonas aeruginosa (PA14 strain) biofilm locally was determined to be 2.5 [mu]M after 6 h. Pyocyanin (PYO) was also observed to be reduced by PA14 biofilm, thus maintaining a reduced atmosphere above the biofilm even in presence of oxygen. Spatial mapping of this reduced PYO showed that this reduced zone was only formed up to 500 [mu]m above the biofilm. The cells are also able to modulate the height of the reduced PYO zone in accordance to the availability of Fe(III/II) in the solution to scavenge iron from the surrounding environment. Real time spatial mapping hydrogen peroxide across polymicrobial biofilm (Sg and Aa) was also achieved with the aid of SECM. The local peroxide concentration produced by Sg was measured to be 1 mM, which is significantly higher than the bulk peroxide concentration. This study also showed that the local concentration across the microbial film is more important than the bulk concentration since bacteria communicate locally in real world.
Download or read book Electrochemical Strategies in Detection Science written by Damien W. M. Arrigan and published by Royal Society of Chemistry. This book was released on 2016 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical methods of chemical analysis have been widely used for many years, the purpose of this volume is to address research and development advances based on new and re-vitalised methods, new materials with enhanced properties and new devices that achieve better electroanalytical signal generation.
Download or read book Scanning Electrochemical Microscopy written by Allen J. Bard and published by CRC Press. This book was released on 2022-07-29 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its simplicity of use and quantitative results, Scanning Electrochemical Microscopy (SECM) has become an indispensable tool for the study of surface reactivity. The fast expansion of the SECM field over several years has been fueled by the introduction of new probes, commercially available instrumentation, and new practical applications. Scanning Electrochemical Microscopy, Third Edition offers essential background and in-depth overviews of specific applications in self-contained chapters. The vitality and growing popularity of SECM over the past 30+ years have largely been determined by its versatility and capability to remain useful in the changing scientific and technological environments. New applications reported during the last decade reflect significant current activity in biomedical and energy-related research. This thoroughly updated edition provides up-to-date comprehensive reviews of different aspects of SECM. New chapters by renowned professionals in the field cover recent advances in different areas of SECM including nanoSECM, surface reactions and films, batteries, and fuel cells. Expanded coverage of electrocatalysis and surface interrogation as well as photoelectrochemistry and photoelectrocatalysis are also provided. Useful for a broad range of interdisciplinary research—from biological systems to nanopatterning—this book is invaluable to all interested in learning and applying SECM.
Download or read book Development of Quantitative Scanning Electrochemical Microscopy SECM Imaging of Single and Array Micro and Nanoband Edge Platinum Electrodes written by Ugne Mitrikeviciute and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
