Microfluidic Devices for Investigation of Biomimetic Membranes for Sensor and Separation Applications PDF Download

Author: Kamila Pszon-Bartosz
Publisher:
ISBN:
Category :
Languages : en
Pages : 125

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Author: Claus Hélix-Nielsen
Publisher: Springer Science & Business Media
ISBN: 9400721846
Category : Science
Languages : en
Pages : 303

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Book Description
This book addresses the possibilities and challenges in mimicking biological membranes and creating membrane-based sensor and separation devices. Recent advances in developing biomimetic membranes for technological applications will be presented with focus on the use of integral membrane protein mediated transport for sensing and separation. It describes the fundamentals of biosensing as well as separation and shows how the two processes are working in a cooperative manner in biological systems. Biomimetics is a truly cross-disciplinary approach and this is exemplified using the process of forward osmosis will be presented as an illustration of how advances in membrane technology may be directly stimulated by an increased understanding of biological membrane transport. In the development of a biomimetic sensor/separation technology, both channels (ion and water channels) and carriers (transporters) are important. An ideal sensor/separation device requires the supporting biomimetic matrix to be virtually impermeable to anything but the solute in question. In practice, however, a biomimetic support matrix will generally have finite permeabilities to water, electrolytes, and non-electrolytes. These non-protein mediated membrane transport contributions will be presented and the implications for biomimetic device construction will be discussed. New developments in our understanding of the reciprocal coupling between the material properties of the biomimetic matrix and the embedded proteins will be presented and strategies for inducing biomimetic matrix stability will be discussed. Once reconstituted in its final host biomimetic matrix the protein stability also needs to be maintained and controlled. Beta-barrel proteins exemplified by the E. Coli outer membrane channels or small peptides are inherently more stable than alpha-helical bundle proteins which may require additional stabilizing modifications. The challenges associated with insertion and stabilization of alpha-helical bundle proteins including many carriers and ligand and voltage gated ion (and water) channels will be discussed and exemplified using the aquaporin protein. Many biomimetic membrane applications require that the final device can be used in the macroscopic realm. Thus a biomimetic separation device must have the ability to process hundred of liters of permeate in hours – effectively demanding square-meter size membranes. Scalability is a general issue for all nano-inspired technology developments and will be addressed here in the context biomimetic membrane array fabrication. Finally a robust working biomimetic device based on membrane transport must be encapsulated and protected yet allowing massive transport though the encapsulation material. This challenge will be discussed using microfluidic design strategies as examples of how to use microfluidic systems to create and encapsulate biomimetic membranes. The book provides an overview of what is known in the field, where additional research is needed, and where the field is heading.

Author: Nan Jia
Publisher:
ISBN:
Category : Biofilms
Languages : en
Pages : 0

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Microfluidic devices exploit the chemical and physical properties of gases and liquids at a microscale. Compared to macro-scale systems, microfluidic devices provide several advantages. They enable the use of smaller volumes of materials, hence lowering application costs globally. Its small size allows for simultaneous execution of several procedures, cutting down on experimentation time. Furthermore, microfluidic systems have the potential to significantly increase throughput and can be seamlessly integrated with other systems to enable automation testing. In addition to analysis, it also provides a good platform for chemical reactions. Researchers synthesized particles, fibers, membranes, and other complex structures via microfluidic devices. In this project, we leveraged microfluidic techniques to explore the diverse applications of chitosan membrane as a pH-sensitive matrix for drug delivery system (DDS) studies and as a functional material for measuring flow rate. By utilizing microfluidic devices to prepare chitosan membranes embedded with silica nanoparticles, we achieved spatiotemporal programmability and complex release profiles for nanocarriers in DDS studies. Additionally, we demonstrated the potential of an X-shaped microfluidic device with a birefringent chitosan membrane as a flow sensor, enabling flow rate calculations based on intensity changes. Furthermore, by incorporating single-bounce attenuated total reflection (ATR) crystals into microfluidic devices, we enabled in situ Fourier-transform infrared (FTIR) testing. This allowed for the characterization of liquid changes, parallel experiments, and focusing laminar flow. The integration of ATR crystals into a microfluidic reactor device facilitated the investigation of reaction kinetics with remarkable time resolution, achieving a comprehensive understanding of diverse reactions through ATR-FTIR analysis. Moreover, our methodology provided a systematic means of assessing microfluidic mixing components under varying flow conditions. Overall, this project demonstrates the potential of microfluidic techniques in advancing drug delivery systems, flow sensing, spectroscopic analysis, and reaction kinetics studies.

Author: Thomas P. Jahn
Publisher: Springer Science & Business Media
ISBN: 1441963154
Category : Medical
Languages : en
Pages : 158

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Book Description
Sixteen years have passed since human aquaporin-1 (AQP1) was discovered as the first water channel, facilitating trans-membrane water fluxes. Subsequent years of research showed that the water channel AQP1 was only the tip of an iceberg; the iceberg itself being the ubiquitous super family of membrane intrinsic proteins (MIPs) that facilitate trans-membrane transport of water and an increasing number of small, water-soluble and uncharged compounds. Here we introduce you to the superfamily of MIPs and provide a summary about our gradually refined understanding of the phylogenetic relationship of its members. This volume is dedicated to the metalloids, a recently discovered group of substrates for a number of specific MIPs in a diverse spectrum of organisms. Particular focus is given to the essential boron, the beneficial silicon and the highly toxic arsenic. The respective MIP isoforms that facilitate the transport of these metalloids include members from several clades of the phylogenetic tree, suggesting that metalloid transport is an ancient function within this family of channel proteins. Among all the various substrates that have been shown to be transported by MIPs, metalloids take an outstanding position. While water transport seems to be a common function of many MIPs, single isoforms in plants have been identified as being crucially important for the uptake of boric acid as well as silicic acid. Here, the function seems not to be redundant, as mutations in those genes render plants deficient in boron and silicon, respectively.

Author:
Publisher: Academic Press
ISBN: 0123743966
Category : Science
Languages : en
Pages : 2785

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From the Introduction: Nanotechnology and its underpinning sciences are progressing with unprecedented rapidity. With technical advances in a variety of nanoscale fabrication and manipulation technologies, the whole topical area is maturing into a vibrant field that is generating new scientific research and a burgeoning range of commercial applications, with an annual market already at the trillion dollar threshold. The means of fabricating and controlling matter on the nanoscale afford striking and unprecedented opportunities to exploit a variety of exotic phenomena such as quantum, nanophotonic and nanoelectromechanical effects. Moreover, researchers are elucidating new perspectives on the electronic and optical properties of matter because of the way that nanoscale materials bridge the disparate theories describing molecules and bulk matter. Surface phenomena also gain a greatly increased significance; even the well-known link between chemical reactivity and surface-to-volume ratio becomes a major determinant of physical properties, when it operates over nanoscale dimensions. Against this background, this comprehensive work is designed to address the need for a dynamic, authoritative and readily accessible source of information, capturing the full breadth of the subject. Its six volumes, covering a broad spectrum of disciplines including material sciences, chemistry, physics and life sciences, have been written and edited by an outstanding team of international experts. Addressing an extensive, cross-disciplinary audience, each chapter aims to cover key developments in a scholarly, readable and critical style, providing an indispensible first point of entry to the literature for scientists and technologists from interdisciplinary fields. The work focuses on the major classes of nanomaterials in terms of their synthesis, structure and applications, reviewing nanomaterials and their respective technologies in well-structured and comprehensive articles with extensive cross-references. It has been a constant surprise and delight to have found, amongst the rapidly escalating number who work in nanoscience and technology, so many highly esteemed authors willing to contribute. Sharing our anticipation of a major addition to the literature, they have also captured the excitement of the field itself in each carefully crafted chapter. Along with our painstaking and meticulous volume editors, full credit for the success of this enterprise must go to these individuals, together with our thanks for (largely) adhering to the given deadlines. Lastly, we record our sincere thanks and appreciation for the skills and professionalism of the numerous Elsevier staff who have been involved in this project, notably Fiona Geraghty, Megan Palmer and Greg Harris, and especially Donna De Weerd-Wilson who has steered it through from its inception. We have greatly enjoyed working with them all, as we have with each other.

Author: Frank A. Gomez
Publisher: John Wiley & Sons
ISBN: 0470074833
Category : Science
Languages : en
Pages : 562

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Book Description
Microfluidics has numerous potential applications in biotechnology, pharmaceuticals, the life sciences, defense, public health, and agriculture. This book details recent advances in the biological applications of microfluidics, including cell sorting, DNA sequencing on-a-chip, microchip capillary electrophoresis, and synthesis on a microfluidic format. It covers microfabricated LOC technologies, advanced microfluidic tools, microfluidic culture platforms for stem cell and neuroscience research, and more. This is an all-in-one, hands-on resource for analytical chemists and researchers and an excellent text for students.

Author: Yong Ren
Publisher: BoD – Books on Demand
ISBN: 1789844185
Category : Technology & Engineering
Languages : en
Pages : 184

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Book Description
Microfluidics have aroused a new surge of interest in recent years in environmental and energy areas, and inspired novel applications to tackle the worldwide challenges for sustainable development. This book aims to present readers with a valuable compendium of significant advances in applying the multidisciplinary microfluidic technologies to address energy and environmental problems in a plethora of areas such as environmental monitoring and detection, new nanofluid application in traditional mechanical manufacturing processes, development of novel biosensors, and thermal management. This book will provide a new perspective to the understanding of the ever-growing importance of microfluidics.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309086396
Category : Science
Languages : en
Pages : 123

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Book Description
For thirty years the NASA microgravity program has used space as a tool to study fundamental flow phenomena that are important to fields ranging from combustion science to biotechnology. This book assesses the past impact and current status of microgravity research programs in combustion, fluid dynamics, fundamental physics, and materials science and gives recommendations for promising topics of future research in each discipline. Guidance is given for setting priorities across disciplines by assessing each recommended topic in terms of the probability of its success and the magnitude of its potential impact on scientific knowledge and understanding; terrestrial applications and industry technology needs; and NASA technology needs. At NASA's request, the book also contains an examination of emerging research fields such as nanotechnology and biophysics, and makes recommendations regarding topics that might be suitable for integration into NASA's microgravity program.

Author: Andreas Manz
Publisher: Springer Science & Business Media
ISBN: 3540695443
Category : Science
Languages : en
Pages : 269

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"WHAT DOES NOT NEED TO BE BIG, WILL BE SMALL", a word by an engineer at a recent conference on chips technology. This sentence is particularly true for chemistry. Microfabrication technology emerged from microelectronics into areas like mechanics and now chemistry and biology. The engineering of micron and submicron sized features on the surface of silicon, glass and polymers opens a whole new world. Micromotors smaller than human hair have been fabricated and they work fine. It is the declared goal of the authors to bring these different worlds together in this volume. Authors have been carefully chosen to guarantee for the quality of the contents. An engineer, a chemist or a biologist will find new impulses from the various chapters in this book.

Author: Ronald R. Pethig
Publisher: John Wiley & Sons
ISBN: 1118443284
Category : Science
Languages : en
Pages : 413

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Book Description
Bioelectronics is a rich field of research involving the application of electronics engineering principles to biology, medicine, and the health sciences. With its interdisciplinary nature, bioelectronics spans state-of-the-art research at the interface between the life sciences, engineering and physical sciences. Introductory Bioelectronics offers a concise overview of the field and teaches the fundamentals of biochemical, biophysical, electrical, and physiological concepts relevant to bioelectronics. It is the first book to bring together these various topics, and to explain the basic theory and practical applications at an introductory level. The authors describe and contextualise the science by examining recent research and commercial applications. They also cover the design methods and forms of instrumentation that are required in the application of bioelectronics technology. The result is a unique book with the following key features: an interdisciplinary approach, which develops theory through practical examples and clinical applications, and delivers the necessary biological knowledge from an electronic engineer’s perspective a problem section in each chapter that readers can use for self-assessment, with model answers given at the end of the book along with references to key scientific publications discussions of new developments in the bioelectronics and biosensors fields, such as microfluidic devices and nanotechnology Supplying the tools to succeed, this text is the best resource for engineering and physical sciences students in bioelectronics, biomedical engineering and micro/nano-engineering. Not only that, it is also a resource for researchers without formal training in biology, who are entering PhD programmes or working on industrial projects in these areas.