Capillary Assembly Of Anisotropic Particles
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Anisotropic Particle Assemblies
| Author | : Ning Wu |
| Publisher | : Elsevier |
| Total Pages | : 368 |
| Release | : 2018-07-12 |
| Genre | : Technology & Engineering |
| ISBN | : 0128041099 |
Anisotropic Particle Assemblies: Synthesis, Assembly, Modeling, and Applications covers the synthesis, assembly, modeling, and applications of various types of anisotropic particles. Topics such as chemical synthesis and scalable fabrication of colloidal molecules, molecular mimetic self-assembly, directed assembly under external fields, theoretical and numerical multi-scale modeling, anisotropic materials with novel interfacial properties, and the applications of these topics in renewable energy, intelligent micro-machines, and biomedical fields are discussed in depth. Contributors to this book are internationally known experts who have been actively studying each of these subfields for many years.This book is an invaluable reference for researchers and chemical engineers who are working at the intersection of physics, chemistry, chemical engineering, and materials science and engineering. It educates students, trains the next generation of researchers, and stimulates continuous development in this rapidly emerging area for new materials and innovative technologies. Provides comprehensive coverage on new developments in anisotropic particles Features chapters written by emerging and leading experts in each of the subfields Contains information that will appeal to a broad spectrum of professionals, including but not limited to chemical engineers, chemists, physicists, and materials scientists and engineers Serves as both a reference book for researchers and a textbook for graduate students
Self-assembly Via Anisotropic Interactions
| Author | : Arthur Cecil Newton |
| Publisher | : |
| Total Pages | : 140 |
| Release | : 2017 |
| Genre | : |
| ISBN | : |
Self-assembly, the non-dissipative spontaneous formation of structural order spans many length scales, from amphiphilic molecules forming micelles to stars forming galaxies. This thesis mainly deals with systems on the colloidal length scale where the size of a particle is between a nanometer and a micrometer. As such, this thesis focuses on the self-assembly of colloidal particles made in the laboratory forming supracolloidal structures in a capillary and making the link to proteins forming complexes or virus shells. Whereas retrosynthetic analysis gives a handle on how atoms form molecules and subsequently how molecules form even bigger molecules, similar design principles are lacking for assembling micrometer particles. Last decade has witnessed great advances in the synthesis of micrometer particle building blocks. It is currently possible to make colloids anisotropic in shape, or anisotropic in surface properties, so-called patchy particles. Patchy particles show great promise in the design of new building blocks, possibly applicable in novel functional materials. Moreover, patchy particles have also shown to be good models for globular proteins. This thesis discusses mainly two topics using advanced computer simulation techniques. The first part of this thesis deals with the extraction of an effective potential for anisotropic colloidal dumbbell particles interacting through the critical Casimir force. The second part deals with how the kinetics and mechanism of formation of simple colloidal or protein structures are influenced by changing the interaction between or the dynamics of patchy particles.
CONTACT ANGLES AND CONTACT LINES AROUND PARTICLES AT ISOTROPIC AND ANISOTROPIC LIQUID INTERFACES.
| Author | : Nesrin Senbil |
| Publisher | : |
| Total Pages | : |
| Release | : 2015 |
| Genre | : |
| ISBN | : |
Liquid interfaces, capillarity and self-assembly of particles at interfaces are important in nature and technology. When a particle is adsorbed to a liquid interface, the contact line of the particle with the liquid interface and the associated contact angle are the crucial parameters that drive assembly of the particles. We looked at how the shape of the liquid interface and the shape of the particle affect the contact angle and the shape of the contact line. We used millimeter-sized PDMS-coated glass spheres and measured the contact angles at isotropic (planar) and anisotropic interfaces (saddle and cylindrical in shape). Anisotropy of the liquid interface is defined by the deviatoric curvature D0>. We look at the apparent advancing and receding contact angles (qA, qR) separately. We found that as the anisotropy of the interface, D0, increased from 0 to 0.22mm-1, the apparent receding angle, qR, decreased from 101° to 80°. Over the same experiments, qA remained fixed at 109°. As D0 increases, we also find that the contact line around the sphere deforms. We make analogy to electrostatics to describe the shape of the contact line in terms of multipole moments. We measured that as D0 increased, the magnitude of the quadrupolar moment (z2) increased and qR decreased. Magnitudes of z2 measured in our experiments agree with previous predictions when capillary force is zero. We also measure the z2with applied capillary force. However, there is no theory to compare it. To our knowledge, this is the first time that quadrupolar deformation of contact line around a particle is observed and measured directly. Moreover, we showed that advancing and receding contact angles of anisotropic shaped solids, such as cylinders, differ at a planar interfaces, which we attribute to the deformation of the contact line. Our results bring a new perspective to contact angles, showing that the advancing and receding angles depend on liquid-interface geometry, which had not previously been appreciated. Thus, our results are broadly important for capillarity and self-assembly related problems.
Evaporative Self-assembly Of Ordered Complex Structures
| Author | : Zhiqun Lin |
| Publisher | : World Scientific |
| Total Pages | : 395 |
| Release | : 2012-02-28 |
| Genre | : Science |
| ISBN | : 9814465046 |
The use of spontaneous self-assembly, as a lithographic tool and as an external field-free means to construct well-ordered and intriguing patterns, has received much attention due to its ease of producing complex, large-scale structures with small feature sizes. An extremely simple route to highly-ordered, complex structures is the evaporative self-assembly of nonvolatile solutes (e.g., polymers, nanoparticles, carbon nanotubes, and DNA) from a sessile droplet on a solid substrate. To date, a few studies have elegantly demonstrated that self-organized nanoscale, microscale, and hierarchically structured patterns have been readily obtained from sophisticated control of droplet evaporation. These include convective assembly in evaporating menisci, the alignment of nanomaterials by programmed dip coating and controlled anisotrophic wetting/dewetting processes, facile microstructuring of functional polymers by the “Breath Figure” method, controlled evaporative self-assembly in confined geometries, etc.This book is unique in this regard in providing a wide spectrum of recent experimental and theoretical advances in evaporative self-assembly techniques. The ability to engineer an evaporative self-assembly process that yields a broad range of complex, well-ordered and intriguing structures with small feature sizes composed of polymers of nanocrystals of different size and shapes as well as DNA over large areas offers tremendous potential for applications in electronics, optoelectronics, photonics, sensors, information processing and data storage devices, nanotechnology, high-throughput drug discovery, chemical detection, combinatorical chemistry, and biotechnology.
Colloidal Particles at Liquid Interfaces
| Author | : Bernard P. Binks |
| Publisher | : Cambridge University Press |
| Total Pages | : 500 |
| Release | : 2006-08-17 |
| Genre | : Technology & Engineering |
| ISBN | : 1139458183 |
The understanding of how small solid particles operate at liquid interfaces is minimal. This book brings together the topics actively being investigated, with contributions from experts in the field. It will be of interest to researchers in chemistry, physics, chemical engineering, pharmacy, food science and materials science.
Nanoscale Liquid Interfaces
| Author | : Thierry Ondarçuhu |
| Publisher | : CRC Press |
| Total Pages | : 782 |
| Release | : 2013-04-17 |
| Genre | : Science |
| ISBN | : 9814316458 |
This book addresses the recent developments in the investigation and manipulation of liquids at the nanoscale. This new field has shown important breakthroughs on the basic understanding of physical mechanisms involving liquid interfaces, which led to applications in nanopatterning. It has also consequences in force microscopy imaging in liquid environment. The book proposes is a timely review of these various aspects. It is co-authored by 25 among the most prominent scientists in the field.
Advanced Materials
| Author | : Theodorus van de Ven |
| Publisher | : Walter de Gruyter GmbH & Co KG |
| Total Pages | : 405 |
| Release | : 2020-01-20 |
| Genre | : Technology & Engineering |
| ISBN | : 3110537737 |
Advanced Materials gives an unique insight into the specialized materials that are required to run our modern society. Provided within are the fundamental theories and applications of advanced materials for metals, glasses, polymers, composites, and nanomaterials. This book is ideal for scientists and engineers of materials science, chemistry, physics, and engineering, and students of these disciplines.
Soft Matter Self-Assembly
| Author | : C.N. Likos |
| Publisher | : IOS Press |
| Total Pages | : 494 |
| Release | : 2016-07-14 |
| Genre | : Science |
| ISBN | : 1614996628 |
Self-assembly is one of the key concepts in contemporary soft condensed matter. It is an umbrella term which encompasses the various modes of spontaneous organization of micrometer-and submicrometer-sized particles into ordered structures of various degrees of complexity, yet it often relies on remarkably simple interactions and mechanisms. Self-assembly is one of the key principles used by nature to construct living matter, where it frequently takes place in a hierarchical fashion. This book contains the lectures from the Enrico Fermi summer school: Soft Matter Self-assembly, held in Varenna, Italy, in June and July 2015. The primary aim of the school was to cover the most exciting modern aspects of self-assembly in soft condensed matter physics, and to enable Ph.D. students and postdocs to engage with some of the most exciting and current topics in the physics of colloids through a series of mini-courses and seminars hosted by leading figures in the field. Subjects covered include: colloids with directional bonding; pathways of self-organization; self-assembly hydrodynamics; polymer structure and dynamics; liquid-crystal colloid dispersions; and self-organizing nanosystems. The proceedings also include two reprints from Reviews of Modern Physics, and will be of interest to both students and experts in the field.
Functional Materials from Colloidal Self-assembly
| Author | : George Zhao |
| Publisher | : John Wiley & Sons |
| Total Pages | : 678 |
| Release | : 2022-01-19 |
| Genre | : Technology & Engineering |
| ISBN | : 3527828737 |
A comprehensive resource for new and veteran researchers in the field of self-assembling and functional materials In Functional Materials from Colloidal Self-assembly, a pair of distinguished researchers delivers a thorough overview of how the colloidal self-assembly approach can enable the design and fabrication of several functional materials and devices. Among other topics, the book explores the foundations of self-assembly in different systems, nucleation, the growth of nanoparticles, self-assembly of colloidal microspheres for photonic crystals and devices, and the self-assembly of amphiphilic molecules as a template for mesoporous materials. The authors also discuss the self-assembly of biomolecules, superstructures from self-assembly, architectures from self-assembly, and the applications of self-assembled nanostructures. Functional Materials from Colloidal Self-assembly provides a balanced approach to the theoretical background and applications of the subject, offering sound guidance to both experienced and early-career researchers. The book also delivers: A thorough introduction to the fundamentals of colloids, including the theory of nucleation and the growth of colloidal particles Comprehensive explorations of mechanisms and strategies for the self-assembly of colloidal particles, including DNA-mediated colloidal self-assembly Practical discussions of characterization techniques for self-assembled colloidal structures, including electron microscopy techniques and X-ray techniques In-depth examinations of biological and biomedical materials, including tissue engineering, drug loading and release, and biodetection Perfect for materials scientists, inorganic chemists, and catalytic chemists, Functional Materials from Colloidal Self-assembly is also a must-read reference for biochemists and surface chemists seeking a one-stop resource on self-assembling and functional materials.
