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Author: Eric Lauga Publisher: Cambridge University Press ISBN: 1107174651 Category : Science Languages : en Pages : 391
Book Description
A pedagogical review of the mathematical modelling in fluid dynamics necessary to understand the motility of most microorganisms on Earth.
Author: Eric Lauga Publisher: Cambridge University Press ISBN: 1107174651 Category : Science Languages : en Pages : 391
Book Description
A pedagogical review of the mathematical modelling in fluid dynamics necessary to understand the motility of most microorganisms on Earth.
Author: Saverio E. Spagnolie Publisher: Springer ISBN: 1493920650 Category : Science Languages : en Pages : 449
Book Description
This book serves as an introduction to the continuum mechanics and mathematical modeling of complex fluids in living systems. The form and function of living systems are intimately tied to the nature of surrounding fluid environments, which commonly exhibit nonlinear and history dependent responses to forces and displacements. With ever-increasing capabilities in the visualization and manipulation of biological systems, research on the fundamental phenomena, models, measurements, and analysis of complex fluids has taken a number of exciting directions. In this book, many of the world’s foremost experts explore key topics such as: Macro- and micro-rheological techniques for measuring the material properties of complex biofluids and the subtleties of data interpretation Experimental observations and rheology of complex biological materials, including mucus, cell membranes, the cytoskeleton, and blood The motility of microorganisms in complex fluids and the dynamics of active suspensions Challenges and solutions in the numerical simulation of biologically relevant complex fluid flows This volume will be accessible to advanced undergraduate and beginning graduate students in engineering, mathematics, biology, and the physical sciences, but will appeal to anyone interested in the intricate and beautiful nature of complex fluids in the context of living systems.
Author: Christina Kurzthaler Publisher: Royal Society of Chemistry ISBN: 1839169478 Category : Science Languages : en Pages : 348
Book Description
The term active fluids refers to motions that are created by transforming energy from the surroundings into directed motion. There are many examples, both natural and synthetic, including individual swimming bacteria or motile cells, drops and bubbles that move owing to surface stresses (so-called Marangoni motions), and chemical- or optical-driven colloids. Investigations into active fluids provide new insights into non-equilibrium systems, have the potential for novel applications, and open new directions in physics, chemistry, biology and engineering. This book provides an expert introduction to active fluids systems, covering simple to complex environments. It explains the interplay of chemical processes and hydrodynamics, including the roles of mechanical and rheological properties across active fluids, with reference to experiments, theory, and simulations. These concepts are discussed for a variety of scenarios, such as the trajectories of microswimmers, cell crawling and fluid stirring, and apply to collective behaviours of dense suspensions and active gels. Emerging avenues of research are highlighted, ranging from the role of active processes for biological functions to programmable active materials, showcasing the exciting potential of this rapidly-evolving research field.
Author: Debora Walker Publisher: Cuvillier Verlag ISBN: 3736980507 Category : Science Languages : en Pages : 127
Book Description
The futuristic vision of nanorobots performing various tasks not easily achieved by macroscopic machines has inspired the development of micron-sized swimmers and propellers that can be navigated with high precision at very small length scales. This thesis focuses on a particular class of such devices, magnetic helical particles, which are propelled using homogeneous rotating magnetic fields. I describe an optimized fabrication process based on the physical vapor deposition technique Glancing Angle Deposition, which allows the production of uniform colloids with complex shapes in very high yields. This process is extended to obtain magnetic helices with diameters below 100 nm. The resulting particles’ propulsion behavior was observed experimentally, and compared with theoretical models. Furthermore two different strategies are examined for navigating not only simple Newtonian fluids, but also more complex biological fluids. In the first case, propulsion in hyaluronic acid is achieved by tuning the propellers’ diameter to a size on the order of the medium’s pore size. For the penetration of gastric mucin gels, a microorganism’s propulsion strategy is mimicked, which relies on enzymatically changing the rheological properties of the local environment. These results illustrate the application of biomimetic locomotion tactics to artificial swimmers.
Author: Stanley A. Cohn Publisher: John Wiley & Sons ISBN: 1119526353 Category : Science Languages : en Pages : 483
Book Description
DIATOM GLIDING MOTILITY Moving photosynthetic organisms are still a great mystery for biologists and this book summarizes what is known and reports the current understanding and modeling of those complex processes. The book covers a broad range of work describing our current state of understanding on the topic, including: historic knowledge and misconceptions of motility; evolution of diatom motility; diatom ecology & physiology; cell biology and biochemistry of diatom motility, anatomy of motile diatoms; observations of diatom motile behavior; diatom competitive ability, unique forms of diatom motility as found in the genus Eunotia; and models of motility. This is the first book attempting to gather such information surrounding diatom motility into one volume focusing on this single topic. Readers will be able to gather both the current state of understanding on the potential mechanisms and ecological regulators of motility, as well as possible models and approaches used to help determine how diatoms accomplish such varied behaviors as diurnal movements, accumulation into areas of light, niche partitioning to increase species success. Given the fact that diatoms remain one of the most ecologically crucial cells in aquatic ecosystems, we hope that this volume will act as a springboard towards future research into diatom motility and even better resolution of some of the issues in motility. Audience Diatomists, phycologists, aquatic ecologists, cellular physiologists, environmental biologists, biophysicists, diatom nanotechnologists, algal ecologists, taxonomists.
Author: Francesc Sagués Mestre Publisher: CRC Press ISBN: 1000684806 Category : Science Languages : en Pages : 308
Book Description
What do bird flocks, bacterial swarms, cell tissues, and cytoskeletal fluids have in common? They are all examples of active matter. This book explores how scientists in various disciplines, from physics to biology, have collated a solid corpus of experimental designs and theories during the last two decades to decipher active systems. The book addresses, from a multidisciplinary viewpoint, the field of active matter at a colloidal scale. Concepts, experiments, and theoretical models are put side by side to fully illuminate the subtilities of active systems. A large variety of subjects, from microswimmers or driven colloids to self-organized active fluids, are analysed within a unified perspective. Generic collective effects of self-propelled or driven colloids, such as motility-induced flocking, and new paradigms, such as the celebrated concept of active nematics in reconstituted protein-based fluids, are discussed using well-known experimental scenarios and recognized theories. Topics are covered with rigor and in a self-consistent way, reaching both practitioners and newcomers to the field. The diversity of topics and conceptual challenges in active matter have long hampered the chance to explore the field with a general perspective. This monograph, the first single-authored title on active matter, is intended to fill this gap by bridging disparate experimental and theoretical interests from colloidal soft matter to cell biophysics.
Author: Susan Dutcher Publisher: Academic Press ISBN: 0128225092 Category : Science Languages : en Pages : 472
Book Description
The Chlamydomonas Sourcebook, 3rd Edition Cell Motility and Behavior (Volume 3) The gold-standard reference?introducing this multidisciplinary science,?fully revised and updated with the latest discoveries Originally published as the standalone Chlamydomonas Sourcebook, then expanded as the third volume in a three-part comprehensive gold-standard reference,?The Chlamydomonas Sourcebook: Cell Motility and Behavior has been fully revised and updated to include the wealth of new resources for the Chlamydomonas community. Reflecting the significant advancement in?the understanding of the role of basal bodies and cilia play in human diseases, this volume employs quantitative proteomics and mass spectroscopy as well as?cryo?EM tomography and single particle?cryo?EM. Other topics such as current insights?on?mitosis and cytokinesis, ciliary assembly and motility, intraflagellar?transport, and more help build an understanding of human diseases of the cilium. Cell Motility and Behavior presents the latest in research and best practices, making this a must-have resource for researchers and students working in plant science and photosynthesis, fertility, mammalian vision, and biochemistry; crop scientists; plant physiologists; and plant, molecular, and human disease biologists. Provides an essential reference to a model species for the study of mechanisms of motility in free living cells? Includes methods for Chlamydomonas motility research? Includes a table listing the known proteins (with NCBI accession numbers) for each structure discussed, and the known mutations that affect each structure and process
Author: C. Pozrikidis Publisher: Cambridge University Press ISBN: 9780521406932 Category : Mathematics Languages : en Pages : 276
Book Description
In addition to theory, this study focuses on practical application and computer implementation in a coherent introduction to boundary integrals, boundary element and singularity methods for steady and unsteady flow at zero Reynolds numbers.
Author: Eric Lauga
Author: Eric Lauga
Author: Saverio E. Spagnolie
Author: Christina Kurzthaler
Author: Liheng Cai
Author: Debora Walker
Author: Stanley A. Cohn
Author: Francesc Sagués Mestre
Author: James Lighthill
Author: Susan Dutcher
Author: C. Pozrikidis