Download or read book Artificial Water Channels written by Royal Society of Chemistry and published by Faraday Discussions. This book was released on 2018 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will focus on the chemistry, physics and material sciences contributions toward the rapidly evolving field of artificial water channels. The development of synthetic biomimetic artificial water-channels and pores is key for a better understanding of the natural function of protein channels. It is hoped to offer new strategies to generate highly selective, advanced materials for water purification systems. While synthetic chemists have produced sophisticated architectures able to confine water clusters, most water channel based work is being conducted with natural protein channels as selectivity components, embedded in the diverse arrays of bio-assisted artificial systems. Experimental results have demonstrated that natural biomolecules can be used as bio-assisted building blocks for the construction of highly selective water transport through artificial channels. Moving to simpler water-channel systems offers a chance to better understand mechanistic and structural behaviours and to uncover novel interactive water channels that might parallel those in biomolecular systems. In this volume the topics covered include: Structure and function of natural proteins for water transport Biomimetic water channels The modelling and enhancement of water hydrodynamics Applications to water transport systems tic and structural behaviours and to uncover novel interactive water channels that might parallel those in biomolecular systems. In this volume the topics covered include: Structure and function of natural proteins for water transport Biomimetic water channels The modelling and enhancement of water hydrodynamics Applications to water transport systems
Download or read book Artificial Water Channels written by and published by . This book was released on 2018 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on the chemistry, physics and material sciences contributions towards the rapidly evolving field of artificial water channels. The development of synthetic biomimetic artificial water-channels and pores is key for a better understanding of the natural function of protein channels. It is hoped to offer new strategies to generate highly selective, advanced materials for water purification systems. While synthetic chemists have produced sophisticated architectures able to confine water clusters, most water channel based work is being conducted with natural protein channels as selectivity components, embedded in the diverse arrays of bio-assisted artificial systems. Experimental results have demonstrated that natural biomolecules can be used as bio-assisted building blocks for the construction of highly selective water transport through artificial channels. Moving to simpler water-channel systems offers a chance to better understand mechanistic and structural behaviours and to uncover novel interactive water channels that might parallel those in biomolecular systems. In this volume the topics covered include: Structure and function of natural proteins for water transport ; Biomimetic water channels ; The modelling and enhancement of water hydrodynamics ; Applications to water transport systems.
Download or read book Artificial Water Channel Based Membrane for Desalination written by Yuexiao Shen and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nature provides excellent examples of highly efficient and selective material transport across cell membranes through biological membrane proteins. Bioinspired artificial water channels combine the high permeability and selectivity of biological aquaporin (AQP) water channels with chemical stability, opening the possibility to develop bioinspired channel-based materials for separations that utilize their unique transport properties. This work first focused on developing methods to characterize the molecular transport of artificial water channels. Peptide-appended pillar[5]arene (PAP) artificial water channels were found to have a single-channel water permeability of 1.0(0.3)1014 cm3/s or 3.5(1.0)108 water molecules per second, which is in the range of AQPs (3.440.3108 water molecules per second) and their current synthetic analogs, carbon nanotubes (CNTs, 9.0 108 water molecules per s). PAP channels were also found to self-assemble into 2D arrays in lipid membranes, with a pore density (2.6105 pores per m2) two orders of magnitude higher than that of CNT membranes (0.12.5103 pores per m2). Another artificial water channel (imidazole-quartet channel) formed a 2.6 pore encapsulating oriented dipolar water-wires in a confined chiral conduit via self-assembly of imidazole-based molecules in lipid bilayers. They mimic the selective filter of M2 proton channel from Influenza A and transport ~106 water molecules per second and reject all ions except protons. PAP artificial water channels could also be incorporated into block copolymer (BCP) membranes and have shown the same high water conductance as observed in native lipid membranes. Despite of the less favorable interaction with poly(butadiene)-b-poly(ethylene oxide) (PB-PEO) BCPs due to chemical hydrophobic mismatch, PAP channels could be densely packed into polymer membranes through a controlled dialysis-based self-assembly when physical hydrophobic mismatch is minimized. The packing density is found to be of the same magnitude as observed in 2D arrays of PAP channels in lipids. This completely artificial material that possesses aquaporin-like permeability and maintains chemical and mechanical stability can be potentially used for the next-generation filtration materials. In order to be more scalable for membrane fabrication, a solvent cast-based method was developed to fabricate a polymer film with PAP artificial water channels incorporated. Using a sacrificial water-soluble layer, the PB-PEO film, with a thickness of 20-30 nm, can be floated on water and transferred to another substrate after crosslinking. The cross-sectional transmission electron microscopy images implied a possible lamellar structure and the presence of PAP channels was confirmed by time-of-flight secondary ion mass spectrometry. Future work should focused on using these channel-based BCP membranes for gas and liquid separations.
Download or read book The Flow of Water in Artificial Channels Clean Pipes written by William Holding Echols and published by . This book was released on 1912 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanofiltration 2 Volume Set written by Andrea Iris Schäfer and published by John Wiley & Sons. This book was released on 2021-08-09 with total page 1267 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated guide to the growing field of nanofiltration including fundamental principles, important industrial applications as well as novel materials With contributions from an international panel of experts, the revised second edition of Nanofiltration contains a comprehensive overview of this growing field. The book covers the basic principles of nanofiltration including the design and characterizations of nanofiltration membranes. The expert contributors highlight the broad ranges of industrial applications including water treatment, food, pulp and paper, and textiles. The book explores photocatalytic nanofiltration reactors, organic solvent nanofiltration, as well as nanofiltration in metal and acid recovery. In addition, information on the most recent developments in the field are examined including nanofiltration retentate treatment and renewable energy-powered nanofiltration. The authors also consider the future of nanofiltration materials such as carbon- as well as polymer-based materials. This important book: Explores the fast growing field of the membrane process of nanofiltration Examines the rapidly expanding industrial sector's use of membranes for water purification Covers the most important industrial applications with a strong focus on water treatment Contains a section on new membrane materials, including carbon-based and polymer-based materials, as well as information on artificial ion and water channels as biomimetic membranes Written for scientists and engineers in the fields of chemistry, environment, food and materials, the second edition of Nanofiltration provides a comprehensive overview of the field, outlines the principles of the technology, explores the industrial applications, and discusses new materials.
Download or read book The Flow of Water in Artificial Channels written by William Holding Echols and published by . This book was released on 1912 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Artificial Water Channels written by and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban Climates written by T. R. Oke and published by Cambridge University Press. This book was released on 2017-09-14 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urban Climates is the first full synthesis of modern scientific and applied research on urban climates. The book begins with an outline of what constitutes an urban ecosystem. It develops a comprehensive terminology for the subject using scale and surface classification as key constructs. It explains the physical principles governing the creation of distinct urban climates, such as airflow around buildings, the heat island, precipitation modification and air pollution, and it then illustrates how this knowledge can be applied to moderate the undesirable consequences of urban development and help create more sustainable and resilient cities. With urban climate science now a fully-fledged field, this timely book fulfills the need to bring together the disparate parts of climate research on cities into a coherent framework. It is an ideal resource for students and researchers in fields such as climatology, urban hydrology, air quality, environmental engineering and urban design.
Download or read book New Trends in Macromolecular and Supramolecular Chemistry for Biological Applications written by Marc J.M. Abadie and published by Springer. This book was released on 2022-05-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume applies the insights of supramolecular chemistry to biomedical applications such as ions/water transport through nano-scale channels, gene therapy, tissue engineering and drug delivery, to cite some of the major investigations.The challenge is to understand the mechanisms of transport through tissues particularly in the therapeutic treatment of a disease where the active drug must be delivered directly to diseased cells without affecting healthy cells. As a result, smaller quantities of active substances can be used to treat the disease. Another interest concerns new ways to administer gene therapy. If genes are often delivered to their target cells by adapted viruses, the supramolecular non-viral ‘vectors’ using dynamic nano-frameworks and nano-structures are presented. In addition, it is important to reconstruct damaged tissues by mimicking natural processes in cells and polymers, such as tissue engineering and self-healing. Different options are here discussed: e.g. hydrogels based on chitosan, a carbohydrate polymer, are proving especially promising for tissue engineering and drug delivery. For controlled delivery of drugs or other biologically active compounds, hydrogels sensitive to the most important stimuli in the human body, such as temperature, pH, ionic strength, glucose and biomolecules released by the organism in pathological conditions have been developed. Finally, to assist and validate the experimental studies, computer modelling and simulations of large-sized molecular structures and systems using different molecular dynamics and quantum mechanical techniques are developed based on the experimental and chemistry synthesis. This book is of great interest for graduate students, researchers and health professionals interested in acquiring a better understanding of the mechanisms of medical treatments. In addition, it provides numerous tools to develop better therapies for human diseases.
Download or read book Ground Water Recharge Using Waters of Impaired Quality written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: As demand for water increases, water managers and planners will need to look widely for ways to improve water management and augment water supplies. This book concludes that artificial recharge can be one option in an integrated strategy to optimize total water resource management and that in some cases impaired-quality water can be used effectively as a source for artificial recharge of ground water aquifers. Source water quality characteristics, pretreatment and recharge technologies, transformations during transport through the soil and aquifer, public health issues, economic feasibility, and legal and institutional considerations are addressed. The book evaluates three main types of impaired quality water sourcesâ€"treated municipal wastewater, stormwater runoff, and irrigation return flowâ€"and describes which is the most consistent in terms of quality and quantity. Also included are descriptions of seven recharge projects.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanofiltration written by Andrea Iris Schäfer and published by John Wiley & Sons. This book was released on 2021-07-07 with total page 1267 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated guide to the growing field of nanofiltration including fundamental principles, important industrial applications as well as novel materials With contributions from an international panel of experts, the revised second edition of Nanofiltration contains a comprehensive overview of this growing field. The book covers the basic principles of nanofiltration including the design and characterizations of nanofiltration membranes. The expert contributors highlight the broad ranges of industrial applications including water treatment, food, pulp and paper, and textiles. The book explores photocatalytic nanofiltration reactors, organic solvent nanofiltration, as well as nanofiltration in metal and acid recovery. In addition, information on the most recent developments in the field are examined including nanofiltration retentate treatment and renewable energy-powered nanofiltration. The authors also consider the future of nanofiltration materials such as carbon- as well as polymer-based materials. This important book: Explores the fast growing field of the membrane process of nanofiltration Examines the rapidly expanding industrial sector's use of membranes for water purification Covers the most important industrial applications with a strong focus on water treatment Contains a section on new membrane materials, including carbon-based and polymer-based materials, as well as information on artificial ion and water channels as biomimetic membranes Written for scientists and engineers in the fields of chemistry, environment, food and materials, the second edition of Nanofiltration provides a comprehensive overview of the field, outlines the principles of the technology, explores the industrial applications, and discusses new materials.
Download or read book Physics of Ionic Conduction in Narrow Biological and Artificial Channels Publish written by Peter V E McClintock and published by Mdpi AG. This book was released on 2021-09-23 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reprints a set of important scientific papers applying physics and mathematics to address the problem of selective ionic conduction in narrow water-filled channels and pores. It is a long-standing problem, and an extremely important one. Life in all its forms depends on ion channels and, furthermore, the technological applications of artificial ion channels are already widespread and growing rapidly. They include desalination, DNA sequencing, energy harvesting, molecular sensors, fuel cells, batteries, personalised medicine, and drug design. Further applications are to be anticipated. The book will be helpful to researchers and technologists already working in the area, or planning to enter it. It gives detailed descriptions of a diversity of modern approaches, and shows how they can be particularly effective and mutually reinforcing when used together. It not only provides a snapshot of current cutting-edge scientific activity in the area, but also offers indications of how the subject is likely to evolve in the future.
Download or read book Membrane Desalination written by Andreas Sapalidis and published by CRC Press. This book was released on 2020-09-13 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to provide details about membrane desalination processes, starting from basic concepts leading to real world implementation. Chapters cover novel research topics such as biomimetic and nanocomposite membranes, nanostructured fillers for mixed matrix membranes, advanced characterization techniques and molecular modeling. Additionally, engineering and economical aspects of desalination as well as the exploitation of green energy sources are thoroughly presented. This books targets bridging the gap between the everyday research laboratory practices with practical application demands, so that the readers gain a global perspective of all desalination challenges.
Download or read book Design of Canals written by P.K. Swamee and published by Springer. This book was released on 2015-04-10 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents firsthand material from the authors on design of hydraulic canals. The book discusses elements of design based on principles of hydraulic flow through canals. It covers optimization of design based on usage requirements and economic constraints. The book includes explicit design equations and design procedures along with design examples for varied cases. With its comprehensive coverage of the principles of hydraulic canal design, this book will prove useful to students, researchers and practicing engineers. End-of-chapter pedagogical elements make it ideal for use in graduate courses on hydraulic structures offered by most civil engineering departments across the world.
Download or read book Artificial Recharge of Groundwater written by Takashi Asano and published by Elsevier. This book was released on 2016-01-22 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial Recharge of Groundwater focuses on artificial recharge of groundwater basins as a means to increase the natural supply of groundwater, along with the technical issues involved. Special emphasis is placed on the use of reclaimed municipal wastewater as a source for artificial recharge of groundwater. This book is comprised of 26 chapters organized into five sections. After reviewing the state of the art of artificial recharge of groundwater, the discussion turns to the fundamental aspects of groundwater recharge, including the role of artificial recharge in groundwater basin management, recharge methods, hydraulics, monitoring, and modeling. The next section considers pretreatment processes for wastewater and renovation of wastewater with rapid-infiltration land treatment systems and describes the health effects of wastewater reuse in groundwater recharge. A number of artificial recharge operations using reclaimed wastewater are then highlighted, focusing on cases in various countries including Israel, Germany, Poland, Japan, the Netherlands, and the United States. The remaining chapters look at the extent of contaminant removal by the soil system and the fate of micropollutants during groundwater recharge as well as the legal and economic aspects of groundwater recharge. Research needs for groundwater quality management are also explored. This monograph is written for civil and sanitary engineers, agricultural engineers, hydrologists, environmental scientists, and research scientists as well as public works officials, consulting engineers, agriculturalists, industrialists, and students at colleges and universities.
Download or read book The Technical History Of China s Grand Canal written by Tan Xuming and published by World Scientific. This book was released on 2019-09-24 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the past 30-years' research on the technical and cultural values of China's Grand Canal, this book, based on interdisciplinary research, studies the natural and social background of the evolution and development of different sections of the Grand Canal in different historical periods, as well as the interrelations between the Grand Canal and the Chinese politics, economics, and culture. It also assesses the effects of the Grand Canal on the progress of the Chinese civilization, engineering technology achievement, the natural environment, and the society, providing the readers with an understanding of China's Grand Canal from the perspectives of hydraulic engineering and history.
