Download or read book Engineering the Interface Between Lipid Bilayers and Inorganic Materials written by Piyush Verma and published by Stanford University. This book was released on 2011 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding and engineering the interface between living matter and synthetic materials can enable technological advances in the areas of biosensors, therapeutics and diagnostics. One of the most crucial and commonly encountered class of such interfaces is the one between the cell membrane and various engineering materials and nanostructures. These interfaces can either be `large area' interfaces between the membrane and material surfaces or nanoscale `through thickness' cross-sectional interfaces that are formed as a synthetic material penetrates the membrane. This thesis describes contributions towards the understanding and/or development of each of these two kinds of interfaces. In the first two chapters, the focus is on synthetic membrane systems which provide a promising platform for biosensing applications. These are based on `large area' interfaces with engineering materials. One powerful approach consists of a synthetic lipid bilayer supported on an inorganic substrate. The non-covalent interactions between the lipids and the underlying substrate are of prime importance in these systems. Lipid spreading experiments, which measure the displacement, velocity, and roughness of the bilayer edge or the dynamic wetting line as it expands on the substrate, have proved useful in studying this interaction. However, previous spreading experiments have not observed any effects due to the inherent elasticity of the bilayer on expansion dynamics. To investigate this, dynamic expansion measurements of a phospholipid bilayer supported on substrates with different surface chemistry were performed. Remarkably different interface dynamics were observed on silica and chromium oxide surfaces. While the bilayer edge on silica monotonically roughened with expansion similar to other quenched noise 2-d systems, it showed a unique rough-smooth-rough interface transition on the chromium oxide substrate. This transition was found to be a result of the viscoelasticity of the lipid bilayer and could be modeled using a modified Edward-Wilkinson equation, which includes a spring-like term to account for the bilayer elasticity. These results demonstrate that the common lipid bilayer deposition technique of vesicle rupture generates supported lipid bilayers which are under compressive stress. This has important implications for biophysical studies performed on supported lipid bilayers and also for the stability of certain biosensing architectures like the pore spanning bilayer system. In the subsequent chapters, the emphasis is on developing a nanoscale `through thickness' interface between the cell membrane and synthetic nanostructures. The primary objective is to form an electrical interface with the interior of the cell for electrophysiological measurements. Such an interface is promising for various fundamental biophysical studies and also for applications such as high resolution neural prosthetics, on-chip electrically addressed artificial neuronal networks and chip based patchclamps. The main challenge in developing such interfaces is controlling the structure and properties of the junction between the device and cell membrane. Recent advances in nanoscale materials have enabled interactions at length scales natural to biology, thus providing an opportunity to control the structure of such junctions. By utilizing the design principles of transmembrane proteins that span the cell membrane, biomimetic metallic electrodes capable of penetrating the cell membrane can be developed. To elucidate the molecular structure of the electrode-membrane interface, coarse grained molecular dynamics (MD) simulations were carried out. These simulations revealed striking trends in interface structure for devices with different geometry and were used to optimize certain device parameters. Furthermore, energetics of the cell-device interaction were computed using thermodynamic integration and adiabatic switching to quantify the spontaneity of interaction. In the process, a unique methodology to compute the energetics of processes involving the interaction of nanostructured materials with soft matter structures was developed. In addition to these simulations, a physical model of cell deformation was developed to understand the mechanics of cell-device interaction. This was built on principles of continuum mechanics under a few simplifying assumptions. In addition to bringing down the parameter space for device design, this model explained a previously observed non-linear to linear transition in thin shell deformation experiments. Nanoscale `stealth' probed based on biomimetic design principles were fabricated using sophisticated microfabrication techniques. The electrical properties of the device were determined by performing cyclic voltammetry in a buffer solution with electrochemically active species. The formation of a well controlled junction between the post electrode and cell membrane was demonstrated by testing the device with red blood cells. A giga-ohm seal was observed to form spontaneously as the cell was brought close to the post, confirming intracellular access. The formation of giga-ohm seal is critical for patchclamping, a technique used extensively in the pharmaceutical industry. Together, MD simulations and cell deformation model provide a powerful approach to modify the device design depending upon the specific application. When coupled with the sophisticated yet flexible fabrication scheme developed for the device, the next generation of massively parallel and highly efficient interface between cells and electronics can be developed.

Download or read book Organic Nanomaterials written by Tomas Torres and published by John Wiley & Sons. This book was released on 2013-08-05 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a new generation of organic nanomaterials and their applications Recent developments in nanoscience and nanotechnology have given rise to a new generation of functional organic nanomaterials with controlled morphology and well-defined properties, which enable a broad range of useful applications. This book explores some of the most important of these organic nanomaterials, describing how they are synthesized and characterized. Moreover, the book explains how researchers have incorporated organic nanomaterials into devices for real-world applications. Featuring contributions from an international team of leading nanoscientists, Organic Nanomaterials is divided into five parts: Part One introduces the fundamentals of nanomaterials and self-assembled nanostructures Part Two examines carbon nanostructures from fullerenes to carbon nanotubes to graphene reporting on properties, theoretical studies, and applications Part Three investigates key aspects of some inorganic materials, self-assembled monolayers, organic field effect transistors, and molecular self-assembly at solid surfaces Part Four explores topics that involve both biological aspects and nanomaterials such as biofunctionalized surfaces Part Five offers detailed examples of how organic nanomaterials enhance sensors and molecular photovoltaics Most of the chapters end with a summary highlighting the key points. References at the end of each chapter guide readers to the growing body of original research reports and reviews in the field. Reflecting the interdisciplinary nature of organic nanomaterials, this book is recommended for researchers in chemistry, physics, materials science, polymer science, and chemical and materials engineering. All readers will learn the principles of synthesizing and characterizing new organic nanomaterials in order to support a broad range of exciting new applications.

Download or read book Bio Synthetic Hybrid Materials and Bionanoparticles written by Alexander Boker and published by Royal Society of Chemistry. This book was released on 2015-08-18 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is much interest in using biological structures for the fabrication of new functional materials. Recent developments in the particle character and behaviour of proteins and viral particles have had a major impact on the development of novel nanoparticle systems with new functions and possibilities. Bio-Synthetic Hybrid Materials and Bionanoparticles approaches the subject by covering the basics of disciplines involved as well as recent advances in new materials. The first section of the book focusses on the design and synthesis of different bionanoparticles and hybrid structures including the use of genetic modification as well as by organic synthesis. The second section of the book looks at the self-assembling behaviour of bionanoparticles to form new materials. The final section looks at bionanoparticle-based functional systems and materials including chapters on biomedical applications and electronic systems and devices. Edited by leading scientists in bionanoparticles, the book is a collaboration between scientists with different backgrounds and perspectives which will initiate the next generation of bio-based structures, materials and devices.

Download or read book Nanostructured Thin Films and Surfaces written by and published by John Wiley & Sons. This book was released on 2010-03-08 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book series Nanomaterials for the Life Sciences, provides an in-depth overview of all nanomaterial types and their uses in the life sciences. Each volume is dedicated to a specific material class and covers fundamentals, synthesis and characterization strategies, structure-property relationships and biomedical applications. The series brings nanomaterials to the Life Scientists and life science to the Materials Scientists so that synergies are seen and developed to the fullest. Written by international experts of various facets of this exciting field of research, the series is aimed at scientists of the following disciplines: biology, chemistry, materials science, physics, bioengineering, and medicine, together with cell biology, biomedical engineering, pharmaceutical chemistry, and toxicology, both in academia and fundamental research as well as in pharmaceutical companies. VOLUME 5 - Nanostructured Thin Films and Surfaces

Download or read book Mesoscale Chemistry written by Kathryn Hughes and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few decades great strides have been made in chemistry at the nanoscale, where the atomic granularity of matter and the exact positions of individual atoms are key determinants of structure and dynamics. Less attention, however, has been paid to the mesoscale--it is at this scale, in the range extending from large molecules (10 nm) through viruses to eukaryotic cells (10 microns), where interesting ensemble effects and the functionality that is critical to macroscopic phenomenon begins to manifest itself and cannot be described by laws on the scale of atoms and molecules alone. To further explore how knowledge about mesoscale phenomena can impact chemical research and development activities and vice versa, the Chemical Sciences Roundtable of the National Research Council convened a workshop on mesoscale chemistry in November 2014. With a focus on the research on chemical phenomena at the mesoscale, participants examined the opportunities that utilizing those behaviors can have for developing new catalysts, adding new functionality to materials, and increasing our understanding of biological and interfacial systems. The workshop also highlighted some of the challenges for analysis and description of mesoscale structures. This report summarizes the presentations and discussion of the workshop.

Download or read book Polymer Nanocomposites in Biomedical Engineering written by Kishor Kumar Sadasivuni and published by Springer. This book was released on 2019-01-29 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a thorough discussion of the physics, biology, chemistry and medicinal science behind a new and important area of materials science and engineering: polymer nanocomposites. The tremendous opportunities of polymer nanocomposites in the biomedical field arise from their multitude of applications and their ability to satisfy the vastly different functional requirements for each of these applications. In the biomedical field, a polymer nanocomposite system must meet certain design and functional criteria, including biocompatibility, biodegradability, mechanical properties, and, in some cases, aesthetic demands. The content of this book builds on what has been learnt in elementary courses about synthesising polymers, different nanoparticles, polymer composites, biomedical requirements, uses of polymer nanocomposites in medicine as well as medical devices and the major mechanisms involved during each application. The impact of hybrid nanofillers and synergistic composite mixtures which are used extensively or show promising outcomes in the biomedical field are also discussed. These novel materials vary from inorganic/ceramic-reinforced nanocomposites for mechanical property improvement to peptide-based nanomaterials, with the chemistry designed to render the entire material biocompatible.

Download or read book Curiosity And Passion For Science And Art written by Uwe B Sleytr and published by World Scientific. This book was released on 2016-07-04 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the accomplishments of a curious and imaginative scientist, and his endeavours to translate or even to extrapolate scientific insights into the world of art.The science section in this volume concerns studies on S-layers, a very important class of proteins found on the surface of numerous Bacteria and nearly all Archaea. S-layer proteins are one of the most abundant biopolymers on our planet, and assemble into the simplest type of biological membrane. Moreover, they are unique building blocks and patterning elements for the production of complex supramolecular structures and nanoscale devices in nanobiotechnology, molecular nanotechnology, synthetic biology, biomimetics and nanomedicine.In the second part of this book the author goes on to passionately describe how his scientific activities stimulated his art work, which in particular concerns the visualization of results and the potential of synthetic biology and evolutionary events induced by genetic manipulations. Most importantly, the engagement in art allowed him to leave the rather curtailed canon of science and reach a mental state of unlimited freedom of thoughts. Mask-like sculptures are used as examples to visualize the intersection between science and art, and in particular the unpredictability and mystery of scientific visions.

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.

Download or read book Nanotechnology and Functional Foods written by Cristina Sabliov and published by John Wiley & Sons. This book was released on 2015-04-21 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued advancement in the sciences of functional foods and nutraceuticals has clearly established a strong correlation between consumption of bioactives and improved human health and performance. However, the efficacy and bioavailability of these bioactive ingredients (e.g., omega-3 oils, carotenoid antioxidants, vitamins, and probiotic bacteria) in foods often remains a challenge, due to their instability in food products and gastrointestinal tract, as well as their limited bioavailability. In some cases, these bioactive ingredients may impart an undesirable organoleptic characteristic to the final product, which hinders acceptance by consumers. In addressing these challenges, development of effective delivery systems is critical to meet the consumer needs for effective bioactives. The scientific knowledge behind developing effective delivery of bioactive components into modern and wide-ranging food products will be essential to reap their health-promoting benefits and to support the sustained growth of the functional foods market. Nanotechnology and Functional Foods: Effective Delivery of Bioactive Ingredients explores the current data on all aspects of nanoscale packing, carrying and delivery mechanisms of bioactives ingredients to functional foods. The book presents various delivery systems (including nano-emulsions, solid lipid nanoparticles, and polymeric nano-particles), their properties and interactions with other food components, and fate in the human body. Later chapters emphasize the importance of consumers attitude towards nano-delivery for the success of the technology and investigate the challenges faced by regulatory agencies to control risks and harmonize approaches worldwide. The wide applicability of bioactive delivery systems with the purpose of improving food quality, food safety and human health will make this book a worthy reference for a diverse range of readers in industry, research and academia.

Download or read book Molecular Modeling of Geochemical Reactions written by James D. Kubicki and published by John Wiley & Sons. This book was released on 2016-07-22 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular processes in nature affect human health, the availability of resources and the Earth’s climate. Molecular modelling is a powerful and versatile toolbox that complements experimental data and provides insights where direct observation is not currently possible. Molecular Modeling of Geochemical Reactions: An Introduction applies computational chemistry to geochemical problems. Chapters focus on geochemical applications in aqueous, petroleum, organic, environmental, bio- and isotope geochemistry, covering the fundamental theory, practical guidance on applying techniques, and extensive literature reviews in numerous geochemical sub-disciplines. Topics covered include: • Theory and Methods of Computational Chemistry • Force Field Application and Development • Computational Spectroscopy • Thermodynamics • Structure Determination • Geochemical Kinetics This book will be of interest to graduate students and researchers looking to understand geochemical processes on a molecular level. Novice practitioners of molecular modelling, experienced computational chemists, and experimentalists seeking to understand this field will all find information and knowledge of use in their research.

Download or read book Understanding Enzymes written by Allan Svendsen and published by CRC Press. This book was released on 2016-04-27 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding Enzymes: Function, Design, Engineering, and Analysis focuses on the understanding of enzyme function and optimization gained in the past decade, past enzyme function analysis, enzyme engineering, and growing insights from the simulation work and nanotechnology measurement of enzymes in action in vitro or in silico. The book also prese

Download or read book Chemical Engineering Progress written by and published by . This book was released on 2009 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanoparticle Based Polymer Composites written by Sanjay Mavinkere Rangappa and published by Woodhead Publishing. This book was released on 2022-07-15 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoparticle-Based Polymer Composites discusses recent advancements on the synthesis, processing, characterization and applications of this new class of hybrid materials. Chapters cover recycling and lifecycle assessment, with contributions from leading researchers in industry, academics, the government and private research institutes from across the globe. As nanoparticle-based polymer composites are now replacing traditional polymer composites in a broad range of applications such as fuel cells, electronic and biomedical devices, this book presents the latest advancements in the field.Studies have shown that incorporating metal nanoparticles in polymer matrices can improve their mechanical, thermal, electrical and barrier properties. The unique combination of these properties makes this new class of materials suitable for a broad range of different and advanced applications. - Features recent advancements on the synthesis, processing and characterization of nanoparticle-based polymer composites - Discusses recycling and lifecycle assessment - Highly application-orientated, with contributions from leading international researchers in industry, academia, the government and private research institutes

Download or read book Green Design Materials and Manufacturing Processes written by Helena Bartolo and published by CRC Press. This book was released on 2013-06-06 with total page 791 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green Design, Materials and Manufacturing Processes includes essential research in the field of sustainable intelligent manufacturing and related topics, containing reviewed papers presented at the 2nd International Conference on Sustainable Intelligent Manufacturing 2013. Topics covered include Eco Design and Innovation, Energy Efficiency, Green and Smart Manufacturing, Green Transportation, Life-Cycle Engineering, Renewable Energy Technologies, Reuse and Recycling Techniques, Smart Design, Smart Materials, Sustainable Business Models and Sustainable Construction. Intended for engineers, architects, designers, economists and manufacturers dealing with key sustainability issues.

Download or read book Handbook of Materials for Nanomedicine written by Vladimir Torchilin and published by CRC Press. This book was released on 2020-03-12 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the fast-developing field of nanomedicine, a broad variety of materials have been used for the development of advanced delivery systems for drugs, genes, and diagnostic agents. With the recent breakthroughs in the field, we are witnessing a new age of disease management, which is governed by precise regulation of dosage and delivery. This book presents the advances in the use of lipid-based and inorganic nanomaterials for medical imaging, diagnosis, theranostics, and drug delivery. The materials discussed include liposome-scaffold systems, elastic liposomes, targeted liposomes, solid lipid nanoparticles, lipoproteins, exosomes, porous inorganic nanomaterials, silica nanoparticles, and inorganic nanohybrids. The book provides all available information about them and describes in detail their advantages and disadvantages and the areas where they could be utilized successfully.

Download or read book Advanced Functional Materials and Methods for Photodegradation of Toxic Pollutants written by Ajay Kumar Mishra and published by Elsevier. This book was released on 2023-09-20 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Functional Materials and Methods for Photodegradation of Toxic Pollutants addresses the potential role of visible active photocatalytic methods for the removal of various emerging and persistent organic pollutants (POPs.) Describing the classification, sources and potential risks of emerging organics in water bodies and the environment, the book covers the different synthesis methods of visible active structured photocatalysts and structure related properties to their applications in photocatalytic processes for the removal of antibiotics, pharma and heavy metal pollutants. This book provides an invaluable reference to academics, researchers and technicians in chemical engineering, chemistry and environmental science. In addition, the mechanistic insights associated with the interaction of advanced functional materials and water pollutants along with the possible reaction pathway occurring during the visible light induced photocatalytic processes together with toxicity are discussed in detail along with the reutilization of catalysts, supporting the inherent reaction conditions performed with natural conditions. - Covers the recent progress in nano photocatalytic materials - Explores the mechanism of photocatalytic degradation of pollutants - Includes the controlled synthesis of nanostructured photocatalysts and their modifications for targeted pollutants

Download or read book Nano Enabled Medical Applications written by Lajos P. Balogh and published by CRC Press. This book was released on 2020-11-23 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the second in a series presenting articles that received the most citations in recent years in nanomedicine. The series is edited by, a prominent nanotechnology researcher and editor-in-chief of Precision Nanomedicine. The theme of the second volume is about nano-enabled medical applications. The 19 articles collected here have already acquired more than 12,500 citations highlighting the importance and professional recognition of the work of these scientists in nanomedicine. The content includes the general overview of the field and a wide variety of applications that have been impossible without nanoscience and nanotechnology.