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The Semiconductive Properties Of Lipids And Their Relation To The Electrical Conductivity Of Lipid Bilayers
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Book Synopsis The Semiconductive Properties of Lipids and Their Relation to the Electrical Conductivity of Lipid Bilayers by : Gordon Lee Jendrasiak
Download or read book The Semiconductive Properties of Lipids and Their Relation to the Electrical Conductivity of Lipid Bilayers written by Gordon Lee Jendrasiak and published by . This book was released on 1967 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made showing that lipid films in the dry state behave as electrical semiconductors with high activation energies. For phospholipids, these activation energies range from 4.8 to 6.3 e.v. Upon hydration, the activation energies decrease whereas the conductivities increase. An effect parallel to that of water is found with exposure of lipids to iodine vapor; here the activation energies range from 2.7 to 3.2 e.v. With the adsorption of either water or iodine, the dielectric constant, frequency dispersion and dissipation factor of the lipids increased over the dry state values. Lipid bilayers were found to exhibit an increase of 1000 to 100000 in their electrical conductivity with exposure of the bilayer to iodine solution. Spectroscopic evidence was obtained indicating that lipids form charge-transfer complexes with iodine. This charge transfer evidence is taken as suggestive of a possible electronic conduction mechanism, not only in the lipid films, but also in the lipid bilayers.
Book Synopsis Lipid Bilayers by : M. Ashrafuzzaman
Download or read book Lipid Bilayers written by M. Ashrafuzzaman and published by . This book was released on 2019-11-05 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book âLipid Bilayers: Properties, Behavior and Interactions' provides a broad overview of an important biological system âcell membrane'. The cell is the powerhouse where processes of life are controlled. Cell membranes consist of lipid bilayers that make biological boundaries. The bilayer participates in determining most of the cell-based uptakes of materials, exchanging of information between both sides and ensuring helping vital biological processes to continue. We have focused specifically on an understanding of various aspects of lipid membrane bilayers. The book is focused on a detailed description of the diverse mechanisms and phenomena associated with membranes. Lipid bilayers exist in various parts of the cell, namely, across the plasma membrane, mitochondrial membrane, and nuclear membrane. While exploring lipid bilayers we shall, therefore, need to consider structures and functions of various sections of biological cells. Besides spectroscopic observations and electrical measurements of membrane bilayers, we address here the phenomena of coexistence and independent existence of different membrane components using various theoretical and experimental methodologies popularly used in biology, physics, mathematics, chemistry, biomedical engineering, and general medical sciences. The focus has been made on explaining diverse mechanisms that play crucial roles in molecular level in the construction of lipid bilayers and maintaining the relevant biological functions. This book will be helpful for readers who want to understand biological processes by applying both simple observations and fundamental scientific analysis. It provides a deep understanding of the causes and effects of molecular processes inside lipid bilayer membranes. A group of eminent scientists from around the globe contributed chapters focusing on different aspects. Each chapter may be found to present an individual topic and elaborate on a specific problem. But the chapters altogether have covered most of the basic aspects relevant to the title of the book. The book will be a vital reference for scientific understanding of lipid bilayers.
Book Synopsis The Electrical and Photoelectrical Characteristics of Lipids and Artificial Bimolecular Lipid Membranes by : Barnett Rosenberg
Download or read book The Electrical and Photoelectrical Characteristics of Lipids and Artificial Bimolecular Lipid Membranes written by Barnett Rosenberg and published by . This book was released on 1973 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project was to investigate the electrical properties and the photoelectrical properties of lipid material in the solid state, and in the form of a bimolecular lipid membrane. This latter structure is the best model system that has yet been developed for the cell membrane. It was the intention to determine whether the lipid material in the solid state and in the form of the bimolecular lipid membranes exhibited any of the semiconductive properties typical of organic materials in the solid state. Also studied was the relationship of the semiconductive characteristics to the functional role played by a membrane in various types of systems in biology. The report presents a synopsis of the research results.
Book Synopsis The Construction and Electrical Properties of Asymmetrical Lipid Bilayers (with Proposed Medical Applications). by : John Holoyda
Download or read book The Construction and Electrical Properties of Asymmetrical Lipid Bilayers (with Proposed Medical Applications). written by John Holoyda and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Technical Abstract Bulletin by : Defense Documentation Center (U.S.)
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1967 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Naval Research Reviews written by and published by . This book was released on 1968 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subcellular Biochemistry by : Donald B. Roodyn
Download or read book Subcellular Biochemistry written by Donald B. Roodyn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume continues the tradition of SUBCELLULAR BIOCHEMISTRY of trying to break down interdisciplinary barriers in the study of cell function and of bringing the reader's attention to less well studied, but nevertheless useful, biological systems. We start with an extensive article by T. P. Karpetsky, M. S. Boguski and C. C. Levy on the structure, properties and possible functions of polyadenylic acid. Apart from revealing a general lack of appreciation of many important aspects of the chemical properties of poly adenylic acid, the literature also shows that there is a great gulf between those who study the biological role of polyadenylic acid. and those who study its physicochemi cal properties. The article by Karpetsky and his colleagues is an attempt to overcome this lack of communication and to present an integrated view of the subject. The authors go into the subject in full detail and the more biologically inclined reader may on occasion have to reread his nucleic acid physical chemistry notes! However, the effort is worthwhile and the article is a timely reminder that we cannot treat nucleic acids as mere abstractions, but that they are complex organic macromolecules capable of equally complex, but nevertheless important, interactions. The next article is by J. Steensgaard and N. P. Hundahl M0ller and deals with computer simulation of density gradient centrifugation systems.
Book Synopsis Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1967-10 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Charge and Field Effects in Biosystems—3 by : ALLEN
Download or read book Charge and Field Effects in Biosystems—3 written by ALLEN and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have again brought together for the Third International Symposium on Charge and Field Effects in Biosystems (July 21-27, 1991), a group of scientists whose interests reside in the fields of bioelectrochemistry, bioenergetics, and bioelectric phenomena. Like the previous symposia at the University of Nottingham (1983) and Virginia Commonwealth University (1989) the topics discussed were related to bioelectric phenomena, including solid state theoretical and experimental approaches to charge and energy transfer in biomolecular and cellular systems, ion and electron transport properties of biological and artifical membranes, the effects of electric fields on biological systems, photoinduced bioelectrochemical phenomena, and the applications of bioelectrochemical technology. The present conference also introduced procedures which may well serve to define the mechanisms of various bioelectrical phenomena, including electroporation for gene transfer and electro fusion for hybridoma formation. Favorable comments made during and after the Symposium indicated that a further conference should be held. Tentatively, plans are being considered for 1993 or 1994. Milton 1. Allen Stephen F. Cleary Arthur E. Sowers Donald D. Shillady Acknowledgments The Editors wish to express their thanks to Rinnie O'Connor, Diane Ruff, Rae Gerber, and lody Allen for their assistance in preparing the Symposium volume for publication. Our special thanks also to the reviewers who performed their tasks with enthusiastic promptness.
Download or read book Cerebrovascular Bibliography written by and published by . This book was released on 1969 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1969 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bilayer Lipid Membranes (BLM) by : H. Ti Tien
Download or read book Bilayer Lipid Membranes (BLM) written by H. Ti Tien and published by . This book was released on 1974 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Artificial Kidney Bibliography written by and published by . This book was released on 1967 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1968 with total page 1038 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1967 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Scientific and Industrial Reports by :
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1967-10 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
