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Author : Yihui Xu
Publisher : Unknown
Page : 167 pages
File Size : 47,6 Mb
Release : 2017
Category : Electronic
ISBN : 9783863953041
Author : Philip Yeagle
Publisher : Unknown
Page : 376 pages
File Size : 46,7 Mb
Release : 1993
Category : Medical
ISBN : UOM:39015026979164
In this new edition of The Membranes of Cells, all of the chapters have been updated, some have been completely rewritten, and a new chapter on receptors has been added. The book has been designed to provide both the student and researcher with a synthesis of information from a number of scientific disciplines to create a comprehensive view of the structure and function of the membranes of cells. The topics are treated in sufficient depth to provide an entry point to the more detailed literature needed by the researcher. Key Features * Introduces biologists to membrane structure and physical chemistry * Introduces biophysicists to biological membrane function * Provides a comprehensive view of cell membranes to students, either as a necessary background for other specialized disciplines or as an entry into the field of biological membrane research * Clarifies ambiguities in the field
Author : Cyrus R. Safinya,Joachim Radler
Publisher : CRC Press
Page : 371 pages
File Size : 43,8 Mb
Release : 2021-09-14
Category : Medical
ISBN : 9781466555730
This handbook provides a unique overview of lipid membrane fundamentals and applications. The fascinating world of lipids that harbor and govern so many biological functionalities are discussed within the context of membrane structures, interactions, and shape evolution. Beyond the fundamentals in lipid science, this handbook focuses on how scientists are building bioinspired biomimetic systems for applications in medicine, cosmetics, and nanotechnology. Key Features: Includes experimental and theoretical overviews on the role of lipids, with or without associated biomolecules, as structural components imparting distinct membrane shapes and intermembrane interactions Covers the mechanisms of lipid-membrane curvature, by peptide and protein binding, and the roles of signalling lipids and the cytoskeleton in plasma membrane shape evolution Covers advanced X-ray and force measurement techniques Discusses applications in biomedicine, cosmetics, and nanotechnology, including lipid vectors in nucleic acid, drug delivery in dermal applications, and lipid-based sensors and artificial biointerfaces Covers artificial membranes from block copolymers, synthetic copolypeptides, and recombinant proteins Includes an exciting section that explores the role of lipids in the origin of life in hydrothermal conditions This book is a highly informative companion for professionals in biophysics, biochemistry, physical chemistry, and material and pharmaceutical sciences and bioengineering.
Author : E. Anibal Disalvo
Publisher : Springer
Page : 284 pages
File Size : 45,5 Mb
Release : 2015-10-05
Category : Science
ISBN : 9783319190600
This book is about the importance of water in determining the structure, stability and responsive behavior of biological membranes. Water confers to lipid membranes unique features in terms of surface and mechanical properties. The analysis of the hydration forces, plasticiser effects, controlled hydration, formation of microdomains of confined water suggests that water is an active constituent in a water-lipid system. The chapters describe water organization at the lipid membrane–water interphase, the water penetration, the long range water structure in the presence of lipid membranes by means of X-ray and neutron scattering, general polarization, fluorescent probes, ATR-FTIR and near infrared spectroscopies, piezo electric methods, computer simulation and surface thermodynamics. Permeation, percolation, osmotic stress, polarization, protrusion, sorption, hydrophobicity, density fluctuations are treated in detail in self-assembled bilayers. Studies in lipid monolayers show the correlation of surface pressure with water activity and its role in peptide and enzyme interactions. The book concludes with a discussion on anhydrobiosis and the effect of water replacement in microdomains and its consequence for cell function. New definitions of lipid/water interphases consider water not only as a structural-making solvent but as a mediator in signalling metabolic activity, modulating protein insertion and enzymatic activity, triggering oscillatory reactions and functioning of membrane bound receptors. Since these effects occur at the molecular level, membrane hydration appears fundamental to understand the behavior of nano systems and confined environments mimicking biological systems. These insights in structural, thermodynamical and mechanical water properties give a base for new paradigms in membrane structure and function for those interested in biophysics, physical chemistry, biology, bio and nano medicine, biochemistry, biotechnology and nano sciences searching for biotechnological inputs in human health, food industry, plant growing and energy conversion.
Author : Alex M. Dopico
Publisher : Springer Science & Business Media
Page : 1265 pages
File Size : 50,5 Mb
Release : 2007-08-30
Category : Medical
ISBN : 9781588296627
This book presents a compendium of methodologies for the study of membrane lipids, varying from traditional lab bench experimentation to computer simulation and theoretical models. The volume provides a comprehensive set of techniques for studying membrane lipids with a strong biophysical emphasis. It compares the various available techniques including the pros and cons as seen by the experts.
Author : David M. Jameson,Gregory D. Reinhart
Publisher : Springer Science & Business Media
Page : 459 pages
File Size : 42,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781468456196
This volume is based on an international symposium held during September 9-12, 1986 in Bocca di Magra, Italy. The intent of the organizers was to bring together expert practitioners of fluorescence spectroscopy, particularly as applied to biological systems, to assess recent developments in the field and discuss future directions. At the same time the meeting was intended to honor the singular and outstanding scientific career of Gregorio Weber on the occasion of his seventieth birthday. Gregorio Weber is truly the pioneer in the application of fluores cence methods to biochemistry and biophysics. A complete list of his scientific contributions to fluorescence and to protein biochemistry is beyond the scope of this preface. Suffice it to say that since his initial landmark articles on fluorescence, published in the late 1940's and early 1950's, Gregorio Weber has continued to make seminal contribu tions to both the theory and practice of fluorescence and, contrary to many who might be tempted to rest on their laurels, he shows no signs of slackening his pace. In addition to his more obvious tangible contributions to the scientific field, Gregorio Weber has made equally valuable contributions of another type. Specifically, he has had the most profound impact, both profeSSionally and personally, on generations of young scientists.
Author : Roland Glaser,David Gingell
Publisher : Springer Science & Business Media
Page : 366 pages
File Size : 40,5 Mb
Release : 2013-03-07
Category : Science
ISBN : 9783642744716
It is common practice to publish conference papers in books or monograph series. This gives some advantage to those who did not have the opportunity to attend the meetings, but it irritates and disappoints others who may have hoped for a set of closely related reviews. With this book we have tried to find a compromise. It presents a selection from the topics which have been discussed in a series of inter national symposia entitled "Biophysics of Cell Surface", held in 1976, 1978, 1981, 1985 and 1988 in the GDR, and subsequently published in the journal STUDIA BIOPHYSICA (volumes 56, 74, 90, 110, 1271. Nearly all the contributors to this book participated in one or more of the meetings. We hope that our choice of topics selected for this book manages to reflect the variety and interest of the broad range of subjects which fall within the scope of membrane biophysics, without taking on the randomness of a scientific car-boot sale. We would like to express our thanks to all colleagues and organ~ isations who helped to realize the conferences and particularly this book. financial support for the symposia of 1985 and 1988 was provided by the IUPAB. A number of topics, reflected in this book, resulted in internat ional cooperations, supported by various organisations. We are especially grateful for the support of UNESCO research project on biophysicS in this respect. The European Bureau (ROSTE) of UNESCO supported the editorial work of this book.
Author : Anonim
Publisher : Unknown
Page : 1114 pages
File Size : 52,9 Mb
Release : 1991
Category : Physics
ISBN : UOM:39015015962817
Author : Pierre Lambert,Massimo Mastrangeli
Publisher : MDPI
Page : 240 pages
File Size : 43,6 Mb
Release : 2019-10-21
Category : Technology & Engineering
ISBN : 9783039215645
Building on advances in miniaturization and soft matter, surface tension effects are a major key to the development of soft/fluidic microrobotics. Benefiting from scaling laws, surface tension and capillary effects can enable sensing, actuation, adhesion, confinement, compliance, and other structural and functional properties necessary in micro- and nanosystems. Various applications are under development: microfluidic and lab-on-chip devices, soft gripping and manipulation of particles, colloidal and interfacial assemblies, fluidic/droplet mechatronics. The capillary action is ubiquitous in drops, bubbles and menisci, opening a broad spectrum of technological solutions and scientific investigations. Identified grand challenges to the establishment of fluidic microrobotics include mastering the dynamics of capillary effects, controlling the hysteresis arising from wetting and evaporation, improving the dispensing and handling of tiny droplets, and developing a mechatronic approach for the control and programming of surface tension effects. In this Special Issue of Micromachines, we invite contributions covering all aspects of microscale engineering relying on surface tension. Particularly, we welcome contributions on fundamentals or applications related to: Drop-botics: fluidic or surface tension-based micro/nanorobotics: capillary manipulation, gripping, and actuation, sensing, folding, propulsion and bio-inspired solutions; Control of surface tension effects: surface tension gradients, active surfactants, thermocapillarity, electrowetting, elastocapillarity; Handling of droplets, bubbles and liquid bridges: dispensing, confinement, displacement, stretching, rupture, evaporation; Capillary forces: modelling, measurement, simulation; Interfacial engineering: smart liquids, surface treatments; Interfacial fluidic and capillary assembly of colloids and devices; Biological applications of surface tension, including lab-on-chip and organ-on-chip systems.
Author : Sebastian Aeffner
Publisher : Universitätsverlag Göttingen
Page : 198 pages
File Size : 44,7 Mb
Release : 2012
Category : Electronic
ISBN : 9783863950439
The fusion of two biological membranes is an important step in many processes on the cellular and sub-cellular level. Understanding the involved interplay of different lipid species, a specialized protein machinery and water on length scales of few nanometers poses a significant challenge to current structural biology. Among several complementary approaches, one strategy is to study the structural rearrangements of the lipid matrix. As the initial step, lipid bilayers must be forced into close contact to form a non-bilayer intermediate termed a stalk. This has been the subject of numerous theoretical studies and simulations, but experimental data on stalks are largely lacking. Currently, the only way to obtain structural information at the required sub-nanometer resolution is x-ray diffraction on the recently discovered stalk phaseʺ formed by certain lipids. We apply this method to elucidate the effect of lipid composition on stalk geometry and the repulsive forces between lipid bilayers prior to stalk formation. An approach based on differential geometry of electron density isosurfaces is introduced to analyze the curvatures and bending energies of the lipid monolayers. For the first time, this connects experiment-based structures of stalks and the associated bending and hydration energies. In addition, this thesis aims to provide a self-contained introduction to the required background in x-ray diffraction on lipid mesophases and electron density reconstruction.
Author : John T. Landrum
Publisher : CRC Press
Page : 562 pages
File Size : 55,6 Mb
Release : 2009-12-21
Category : Medical
ISBN : 9781420052312
Carotenoids are of great interest due to their essential biological functions in both plants and animals. However, the properties and functions of carotenoids in natural systems are surprisingly complex. With an emphasis on the chemical aspects of these compounds, Carotenoids: Physical, Chemical, and Biological Functions and Properties presents a b
Author : Gianfranco Menestrina,M. Dalla Sera
Publisher : CRC Press
Page : 360 pages
File Size : 43,7 Mb
Release : 2003-01-30
Category : Medical
ISBN : 9780203986646
Pore-forming proteins and peptides play a central role in bacterial pathogenesis, the immune response, defense from venomous attack, and innate immunity. These proteins attack and eliminate other organisms by punching an aqueous channel through their membranes, which disrupts appropriate cell function. The discovery of this cellular interaction has
Author : Jacques Meunier,Dominique Langevin,Nino Boccara
Publisher : Springer Science & Business Media
Page : 408 pages
File Size : 40,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642832024
Amphiphilic layers play essential roles in the behaviour of a great variety of disperse systems such as micelles, microemulsions and vesicles. They can also exist as isolated mono- or bilayers, or constitute extended liquid crystalline structures. Although the properties of these different systems may at first sight seem unrelated, theoretical interpretations of them depend on several common concepts. This was the reason for bringing together scientists working in this area for the International Winter School on the Physics of Amphiphilic Layers, which was held at Les Houches, 10-18 February, 1987. The topics treated in the proceedings volume are mono- and bilayers, interactive forces between layers (with special emphasis on steric forces), ordered structures (in particular swollen lamellar phases and defects), vesicles, micelles (including polymer-like systems), microemulsions (especially random bicontinuous structures) and porous media. The importance of thermal fluctuations in the amphiphilic layers is stressed. Recent results are presented and literature references allow readers not familiar with the subject to find any background information they require.
Author : Emanuel Schneck
Publisher : Springer Science & Business Media
Page : 138 pages
File Size : 51,7 Mb
Release : 2010-11-30
Category : Science
ISBN : 9783642154508
Systematic investigations of the structure, mechanics, and dynamics of biological surfaces help us understand more about biological processes taking place at cell and bacteria surfaces. Presented here is a study of the role membrane-bound saccharides play in the modulation of interactions between cells/bacteria and their environments. In this thesis, membrane structures were probed perpendicular and parallel to the surface, and sophisticated planar models of biomembranes composed of glycolipids of various structural complexities were designed. Furthermore, specular and off-specular X-ray and neutron scattering experiments were carried out. This research has led to the development of several new methods for extracting information on the structure and mechanics of saccharide-rendered biomembranes from the measured scattering signals. In fact, more is now known about the influence of the saccharide structure. These results demonstrate that the study of planar model systems with X-ray and neutron scattering techniques can provide comprehensive insight into the structure and mechanics of complex biological surfaces.
Author : Dennis E. Vance,J.E. Vance
Publisher : Elsevier
Page : 577 pages
File Size : 40,9 Mb
Release : 1996-08-06
Category : Science
ISBN : 9780080860923
This is the third edition of this advanced textbook, written with two major objectives in mind. One is to provide an advanced textbook covering the major areas in the fields of lipid, lipoprotein, and membrane biochemistry, and molecular biology. The second objective is to provide a clear summary of these research areas for scientists presently working in these fields. The volume provides the basis for an advanced course for students in the biochemistry of lipids, lipoproteins and membranes. The book will satisfy the need for a general reference and review book for scientists studying lipids, proteins and membranes. Excellent up-to-date reviews are available on the various topics covered. A current, readable, and critical summary of these areas of research, it will allow scientists to become familiar with recent developments related to their own research interests, and will help clinical researchers and medical students keep abreast of developments in basic science that are important for subsequent clinical advances.
