Download or read book Fluid Phase Separation Via Nanochannel Array written by John Bishop Lee and published by . This book was released on 2018 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS) generate ideas and techniques for creating new devices at the micro/nano scale. This dissertation study designed a gas generator system utilizing nanochannels for phase separation that is useful for micro-pneumatic actuators, micro-valves, and micro-pumps. The new gas generator has the potential to be an integral part of a propulsion system for small-scale satellites. Nano/picosatellites have limited orientation capability partly due to the current limitations of microthruster devices. Development of a self-contained micro propulsion system enables dynamic orbital maneuvering of pico- and nano-class satellites. Additionally, the new gas generator utilizes a high efficiency, green propellant that is less harmful to the environment. This dissertation study tested aqueous antifreeze solutions to verify vapor pressures and establish previously unknown kinematic viscosities. A viscometer, developed expressly for this study, measured kinematic viscosity values between 1E-2 and 1E-4 m2/s for water solutions mixed with propylene glycol, ethylene glycol, methanol, and glycerol. CubeSats, 10-centimeter cube satellites, are volume limited, and high strain expansion of water during crystallization could destroy the structure. Validation of the freezing point depression and measurement of previously unknown percent expansion with increasing concentration are valuable for setting safe design specifications. A 7.5 %w/w propylene glycol-water solution reduces the overall expansion by 2% while 20 %w/w PG reduces the expansion 4%. Potassium hydroxide etched silicon micro/nanochannels regulated vaporization of aqueous propylene glycol to a vacuum environment. Sequential still images captured with a Basler Scout camera were used to measure mass flow rates, representative of Washburn capillary flow. Magnitude of single channel flow rates ranged from 1E-10 mol/s to 1E-8 mol/s for 600nm channels up to 12om channels, respectively. Although the flow rate increased using nanochannel arrays, it was 35% slower than expected based on single nanochannel measurements. A system utilizing nanochannel arrays for fluid phase separation, with propylene glycol as the propellant, is feasible in a low-cost, green, non-toxic, and non-pressurized CubeSat propulsion system. Depressing the freezing point of water by adding antifreeze creates a wider liquid working range, decreases power requirements, but also maintains appreciable flow rates for thrust generation (micro-millinewton). Successful nanofluidic research on an aqueous antifreeze solution is foundational for future propulsion system research and pushes CubeSats in the right direction.
Download or read book Nano and Microfabrication Techniques in Drug Delivery written by Dimitrios Lamprou and published by Springer Nature. This book was released on 2023-04-27 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: New materials and manufacturing techniques are evolving with the potential to address the challenges associated with the manufacture of medicinal products that will teach new tricks to old drugs. Nano- and microfabrication techniques include manufacturing methods such as additive manufacturing, lithography, micro-moulding, spray drying, and supercritical fluids among many others. The increasing resolution of new techniques allow researchers to produce objects with micrometric resolutions. This book follows a consecutive order, beginning with a background in the current field and limitations in the manufacturing of different pharmaceutical products, moving on the classification of each method by providing recent examples, and future prospective on a variety of traditional and new Nano and microfabrication techniques. A focus on the materials used to prepare these systems and their biocompatibility, including applied topics such as clinical applications and regulatory aspects also covered, offering the reader a holistic view of this rapidly growing field.
Download or read book Scanning Probe Microscopy in Nanoscience and Nanotechnology 2 written by Bharat Bhushan and published by Springer Science & Business Media. This book was released on 2010-12-17 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the physical and technical foundation of the state of the art in applied scanning probe techniques. It constitutes a timely and comprehensive overview of SPM applications. The chapters in this volume relate to scanning probe microscopy techniques, characterization of various materials and structures and typical industrial applications, including topographic and dynamical surface studies of thin-film semiconductors, polymers, paper, ceramics, and magnetic and biological materials. The chapters are written by leading researchers and application scientists from all over the world and from various industries to provide a broader perspective.
Download or read book One Dimensional Nanostructures written by Zhiming M Wang and published by Springer Science & Business Media. This book was released on 2008-07-20 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-dimensional (1D) nanostructures, including nanowires, nanotubes and quantum wires, have been regarded as the most promising building blocks for nanoscale electronic and optoelectronic devices. This book presents exciting, state-of-the-art developments in synthesis and properties of 1D nanostructures with many kinds of morphologies and compositions as well as their considerable impact on spintronics, information storage, and the design of field-effect transistors.
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 Dekker Encyclopedia of Nanoscience and Nanotechnology written by James A. Schwarz and published by CRC Press. This book was released on 2004 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Nanotubes written by Jose Mauricio Marulanda and published by BoD – Books on Demand. This book was released on 2011-08-01 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes (CNTs), discovered in 1991, have been a subject of intensive research for a wide range of applications. In the past decades, although carbon nanotubes have undergone massive research, considering the success of silicon, it has, nonetheless, been difficult to appreciate the potential influence of carbon nanotubes in current technology. The main objective of this book is therefore to give a wide variety of possible applications of carbon nanotubes in many industries related to electron device technology. This should allow the user to better appreciate the potential of these innovating nanometer sized materials. Readers of this book should have a good background on electron devices and semiconductor device physics as this book presents excellent results on possible device applications of carbon nanotubes. This book begins with an analysis on fabrication techniques, followed by a study on current models, and it presents a significant amount of work on different devices and applications available to current technology.
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 Smart Membranes written by Liang-Yin Chu and published by Royal Society of Chemistry. This book was released on 2019-04-03 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart membranes that respond to environmental stimuli are gaining attention because of their potential use in a variety of applications, from drug delivery to water treatment. Their surface characteristics and/or permeation properties, including pressure-driven hydraulic permeability and concentration-driven diffusional permeability, can be adjusted in response to small chemical and/or physical stimuli in the environment. This book will cover topics such as novel design and fabrication strategies, approaches for controlling structure and performance, as well as cutting-edge applications of smart membranes. It will deliver new insights and fundamentals for both professionals and newcomers in related fields. Edited by an internationally renowned expert and with contributions from key researchers, Smart Membranes provides a comprehensive overview of the topic. It will appeal to students and researchers across materials science, chemistry, chemical engineering, pharmaceutical science and biomedical science.
Download or read book Visualizing Chemistry written by National Research Council and published by National Academies Press. This book was released on 2006-06-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and engineers have long relied on the power of imaging techniques to help see objects invisible to the naked eye, and thus, to advance scientific knowledge. These experts are constantly pushing the limits of technology in pursuit of chemical imagingâ€"the ability to visualize molecular structures and chemical composition in time and space as actual events unfoldâ€"from the smallest dimension of a biological system to the widest expanse of a distant galaxy. Chemical imaging has a variety of applications for almost every facet of our daily lives, ranging from medical diagnosis and treatment to the study and design of material properties in new products. In addition to highlighting advances in chemical imaging that could have the greatest impact on critical problems in science and technology, Visualizing Chemistry reviews the current state of chemical imaging technology, identifies promising future developments and their applications, and suggests a research and educational agenda to enable breakthrough improvements.
Download or read book Microscale Acoustofluidics written by Thomas Laurell and published by Royal Society of Chemistry. This book was released on 2014-12-08 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manipulation of cells and microparticles within microfluidic systems using external forces is valuable for many microscale analytical and bioanalytical applications. Acoustofluidics is the ultrasound-based external forcing of microparticles with microfluidic systems. It has gained much interest because it allows for the simple label-free separation of microparticles based on their mechanical properties without affecting the microparticles themselves. Microscale Acoustofluidics provides an introduction to the field providing the background to the fundamental physics including chapters on governing equations in microfluidics and perturbation theory and ultrasound resonances, acoustic radiation force on small particles, continuum mechanics for ultrasonic particle manipulation, and piezoelectricity and application to the excitation of acoustic fields for ultrasonic particle manipulation. The book also provides information on the design and characterization of ultrasonic particle manipulation devices as well as applications in acoustic trapping and immunoassays. Written by leading experts in the field, the book will appeal to postgraduate students and researchers interested in microfluidics and lab-on-a-chip applications.
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 Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Micro Nanofluidics and Lab on Chip Based Emerging Technologies for Biomedical and Translational Research Applications Part A written by and published by Academic Press. This book was released on 2022-01-13 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micro/Nanofluidics and Lab-on-Chip Based Emerging Technologies for Biomedical and Translational Research Applications, Volume 185, Part A represents the collation of chapters written by eminent scientists worldwide. Chapters in this updated release include An introduction to microfluidics and their applications, Design and fabrication of Micro/Nanofluidics devices and systems, Detection and separation of proteins using Micro/Nanofluidics devices, Micro/Nanofluidics devices for DNA/RNA detection and separation, Paper based microfluidics a forecast towards the most affordable and rapid point-of-care devices, Paper based micro/Nanofluidics devices for biomedical applications, Advances of Microfluidics Devices and their Applications in Personalized Medicine, and much more. Additional chapters cover Microfluidics for single cell analysis, Fluorescence Based Miniaturized Microfluidic and Nanofluidic Systems for Biomedical Applications, Active Matter Dynamics in Confined Microfluidic Environments, Challenges and opportunities in micro/nanofluidics and lab-on-a-chip, and Paper-microfluidic signal-enhanced immunoassays. - Offers basic understanding of the state-of-the-art design and fabrication of microfluidics/ nanofluidics and lab-on-chip - Explains how to develop microfluidics/nanofluidics for biomedical application such as high throughout biological screening and separation - Discusses the applications, challenges and opportunities in biomedical and translational research applications of microfluidics/nanofluidics
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mixed Matrix Membranes written by Clara Casado-Coterillo and published by MDPI. This book was released on 2019-12-16 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed matrix membranes (MMMs) have attracted a large amount of interest in research laboratories worldwide in recent decades, motivated by the gap between a growing interest in developing novel mixed matrix membranes by various research groups and the lack of large-scale implementation. This Special Issue contains six publications dealing with the current opportunities and challenges of mixed matrix membranes development and applications to solve environmental and health challenges of the society of 21st century.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
