Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 23 for “"soft matter systems"”.
-
Modelling of colloidal dynamics in complex soft matter systems
… complex dynamics among colloidal particles in soft matter systems which are influenced by the interplay between Brownian motion, the common denominator among all the projects, and other phenomena such as inter-particle interactions and external fields. Since the Brownian motion and its …
-
The Self-Organisation of Biological Soft matter Systems at Different Length-scales
… occurs in physical, chemical and biological systems throughout the natural world when the components of an initially unstructured system arrange to form ordered structures. Research into the mechanisms underlying these systems has led to exciting developments in materials chemistry where a …
-
Particle Manipulation Via Optical Forces and Engineering Soft-Matter Systems With Tunable Nonlinearities.
One of the most intriguing properties of light-matter interaction is the ability of an electromagnetic field to exert mechanical forces on polarizable objects. This phenomenon is a direct consequence of the fact that light carries momentum, which in turn can be transferred to matter. Mediated by …
-
Mechanics, shape, and programmability in soft matter systems: From fluid membranes to spring and droplet networks
<p>This thesis analyzes three different soft matter systems---membranes, polymers, and droplets---to answer questions about shape, mechanics, and programmability. </p> <p>For membranes, my collaborators and I have developed a theoretical model of endocytosis in yeast. Endocytosis is the process by …
-
Theoretical investigations of the role of excluded volume, topological constraints, and attractive forces in the slow dynamics of soft matter systems
"Soft matter physics has been continuously growing over the last 50 years due to its implications in physics, biology, chemistry, and materials science. One interest in the field arises from the viscoelastic nature of such materials; depending on the length and time scales studied the material can …
-
Mesoscopic simulations of electrohydrodynamic phenomena
… Dynamics erlauben die Untersuchung eines Soft-Matter-Systems auf langen Zeit- und großen Längenskalen. Verschiedene elektrokinetische Effekte wie der elektroosmotische Fluss, Polyelektrolyt-Dynamik in freier Salzlösung und Elektrophorese von Polyelektrolyten in Mikrokanälen wurden im …
-
On the dynamics and interparticle forces of electrostatically stabilized colloidal suspensions
… colloidal suspensions play a pivotal role, with systems ranging from simple gold nanoparticles in electrolyte solutions to complex assemblies like micelles, vesicles, nanocapsules, and dendritic polymers. Typically, these systems are approached through the Derjaguin–Landau–Verwey–Overbeek (DLVO) …
-
Diffusion Of Gold Nanoparticles In Synthetic And Biopolymer Solutions
<p>Soft matter systems of colloidal particles, polymers, amphiphiles and liquid crystals are ubiquitous in our everyday life. Food, plastics, soap and even human body is comprised of soft materials. Research conducted to understand the behavior of these soft matter systems at molecular level is …
-
Polysaccharides in Amyloid Aggregation and Hydrogel Mechanics: Insights from Molecular Modeling
… materials sciences. They often participate in soft matter systems—multi-component systems with a propensity for self-assembly—ranging from simple household agar gels to complex biofluids like mucus. In this thesis, we examined overlapping yet independent cases of polysaccharide-related …
-
Investigation of structural properties in biomolecular systems using synchrotron-based spectroscopies
… often cannot be applied to biomolecular systems, at least not without special postpreparation which often corrupts the desired properties of the pristine systems. In this work the capabilities of synchrotron-based, soft X-ray spectroscopies as an alternative way to unravel structural …
-
Bioinspired soft matter self-assembly and its use in biomedical applications
… colloids, and gels. Therefore, most biological matter is soft matter, and many biomedical products, such as 3D cell culture platforms or nanocarriers for drug and imaging agent delivery, often consist mostly of soft matter. Despite advances in these fields, concerns still exist regarding the …
-
Self-organization in systems of anisotropic particles
… presents studies on self-organization in soft matter systems. A wide variety of systems is studied, with the goal of understanding both the nonequilibrium and the equilibrium properties of this important process. In Chapter 2, we study the self-assembly of asymmetric Janus colloidal …
-
Multilevel Monte Carlo simulation of soft matter using coarse-grained models
Soft matter encompasses a wide variety of materials that are composed of mesoscopic particles in solution. The numerical study of such materials is complicated by the difference in length-scales between an atomistic, statistical mechanical model of the material and its mesoscopic structures. To …
-
Engineering soft matter for cell biology from a biophysical point of view
… pinned by technological innovations developed in soft matter physics. In this thesis, I have focused on applying biophysical views and tools to study bio-relevant soft matter systems, including the biomolecular condensates in cell nucleus and the bio-materials for cell culture applications. First, …
-
High Deviatoric Strain Engineering/
… and internal structure evolution in soft matter systems. Using largescale molecular dynamics simulation, we demonstrate that controlled sintering of the nanocrystals in self-assembled superlattices of alkanethiol-passivated gold nanoparticles can happen at room temperature through …
-
Self-Assembly of Azobenzene Photosurfactants and the Relationship with Macroscopic Properties
… viscoelasticity, optical anisotropy and soft-templating ability is also investigated, emphasising how control over self-assembled structure can be used to modulate key properties and applications. In general, non-ionic photosurfactants have been less studied compared to their ionic …
-
Equilibrium and Non-equilibrium Monte Carlo Simulations of Microphases and Cluster Crystals
<p>Soft matter systems exhibiting spatially modulated patterns on a mesoscale are characterized by many long-lived metastable phases for which relaxation to equilibrium is difficult and a satisfactory thermodynamic description is missing. Current dynamical theories suffer as well, because they …
-
Dynamics of nanoparticles in complex fluids.
<p>Soft matter is a subfield of condensed matter including polymers, colloidal dispersions, surfactants, and liquid crystals. These materials are familiar from our everyday life- glues, paints, soaps, and plastics are examples of soft materials. Many phenomena in these systems have the same …
-
Fabrication and Characterization of Multifunctional Soft Composites for Hybrid Electronic Systems
There has been an ever-increasing need for soft, functional materials within areas of research such as soft robotics, flexible electronics, and wearable devices. These materials must be stretchable and/or flexible, thermally and electrically conductive, and robustly adhesive to a wide variety of …
-
Anomalous diffusion in anisotropic media
The structure and dynamics of three 'soft-matter' systems was investigated by pulsed field gradient diffusion NMR and complementary deuterium line shape analysis. Restricted diffusion was studied in two lyotropic lamellar systems, the first consisting of crosslinked flat lamellae in anisotropic …
Page 1 of 2