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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"semiflexible polymer"”.
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Translocation of a Semiflexible Polymer Through a Nanopore
… the dynamics of driven translocation of a semiflexible polymer through a nanopore in two dimensions (2D) using Langevin dynamics (LD) simulation. By carrying out extensive simulation as a function of different parameters such as, driving force, length and rigidity of the chain, viscosity of …
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Computational studies of semiflexible polymer translocation in nanopore systems
… flexible, and the translocation dynamics of semiflexible molecules are not very well understood. In this thesis, in a set of articles, several aspects of translocation with semiflexible polymers in various nanopore systems are explored using molecular dynamics simulations. We look at the …
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Interplay of flow and microstructure in complex fluids: Semiflexible polymer solutions and emulsions
… properties and flow conditions in polymeric solutions and in emulsions. An efficient algorithm is presented for Brownian dynamics simulations of semiflexible bead-rod chains with configuration-dependent anisotropic bead friction tensor. The algorithm for the dynamics and the stress …
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Conformations of semiflexible polymers and filaments
… function and the technological applications of semiflexible polymers, such as DNA, actin filaments and carbon nanotubes, strongly depend on their rigidity. Semiflexible polymers are characterized by their persistence length, the definition of which is the subject of the first part of this …
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Single stranded DNA: A new model system for single molecule polymer dynamics
The study of polymer dynamics has been an active area of research for many years. For nearly two decades, fluorescently-labeled double stranded DNA (dsDNA) has been the model system for studying single molecule polymer dynamics in non-equilibrium conditions. However, dsDNA is a semiflexible polymer …
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Biology's wires and motors : single-molecule mechanics of M13 bacteriophage and kinesin
… the encoding DNA. A better understanding of its polymer mechanics is critical to the further development of future M13-based technologies. As a result, combined efforts in genetic engineering, optical trapping, and modeling were employed in the first characterization of the biopolymer's …
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Single molecule studies of flexible polymer systems
Polymeric materials play a profound role in our daily lives. There have been many key advances in polymer processing over the last several decades, but much of the underlying molecular behavior and physics of polymer solutions is not fully understood. Single molecule studies of polymer solutions …
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Interplay of Geometry and Mechanics: Disordered Spring Networks and Shape-changing Cerebella
… strain-induced stiffening transitions in semiflexible networks with area-conserving inclusions and III) non-linearities in the buckling without bending morphogenesis model for growing cerebella. All models are two dimensional and we employ either discrete and continuum models to study …
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Coarse-grained simulations to predict structure and properties of polymer nanocomposites
Polymer Nanocomposites (PNC) are a new class of materials characterized by their large interfacial areas between the host polymer and nanofiller. This unique feature, due to the size of the nanofiller, is understood to be the cause of enhanced mechanical, electrical, optical, and barrier properties …
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Force-response statistics of semiflexible polymers
… to probe the physical properties of these biopolymers in unprecedented detail. These methods have led to a greater understanding of a wide range of biologically relevant processes, including the dynamics of cytoskeletal filaments, the stability of DNA double helix, and the formation of …
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Aib(2)oxyntomodulin Peptide Molecular Self-Assembly: Smart Nanostructures Toward Long Acting Formulation for Obesity and Diabetes Type 2
… and cryo-EM images, alongside modelling based on semiflexible polymer theory, we show that Oxm and Aib2-Oxm fibrils exhibit ribbon-like multifilament structures as opposed to the closely packed multifilament structures as previously speculated. In order to understand the fibrillation and …
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Dynamics of single semiflexible filaments in a viscous fluid
Numerous cellular functions rely on semiflexible filaments as structural elements (F-actin, microtubules), locomotive organs (flagella, cilia) or carriers of information (DNA). Flexible and semiflexible polymers are also commonly encountered in technological applications, specifically in chemical …