Search for dissertations about: "self–assembly"

Showing result 1 - 5 of 11 swedish dissertations containing the word self–assembly.

2. 1. Photoinduced Electron and Energy Transfer in Π-Conjugated Systems

   Author : Melina Gilbert Gatty; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fs spectroscopy; exciton coupling; conjugated porphyrin oligomers; ps spectroscopy; molecular wire; electron transfer; conformational analysis; self‒assembly; anthracene dendrimers; energy transfer; fluorescence anisotropy;

   Abstract : Photosynthesis is a fascinating process that provides food and oxygen. In this thesis, focus is on understanding and controlling the early processes of photosynthesis, namely photoinduced energy and electron transfer. READ MORE

4. 2. Responsive Molecular Systems through Dynamic Covalent Chemistry

   Author : Antanas Karalius; Zoltan Szabo; Stefan Matile; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; stimuli-responsiveness; dynamic covalent reactions; systems chemistry; constitutional dynamics; non-equilibrium systems; nitroaldol reaction; dynamers; reversible polymerization; boronate ester; imine ligand; metal coordination; self–assembly; emergent properties; network topology.; stimuli-responsivitet; dynamiska kovalenta reaktioner; systemkemi; konstitutionell dynamik; icke-jämviktssystem; nitroaldolreaktion; dynamerer; reversibel polymerisation; boronester; iminligand; metallkoordination; själv-organisation; emergenta egenskaper; nätverkstopologi.; Kemi; Chemistry;

   Abstract : Nature tends to inspire research in chemistry. Systems that emerge from molecules interacting via reaction networks is something that life has mastered over the course of evolution in order to produce complexity. Dynamic reactions are key in systems chemistry, where reaction networks give rise to complex, emergent behavior. READ MORE

5. 3. Fluorescence Probing of DNA Structures in Biology and Nanotechnology

   Author : Peter Sandin; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; DNA; Fluorescent DNA base analog; UV‐Vis spectroscopy; DNA nanostructure; self‐assembly; time‐resolved fluorescence spectroscopy;

   Abstract : Much has been learnt about DNA since its structure was discovered about half a century ago. Scientists everlasting urge to look beyond and deeper into the intricate machinery of life, has continuously pushed technology forward. READ MORE

6. 4. RNA in model lipid membranes - interactions in bulk and at surfaces

   Author : Agnes Michanek; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; ssRNA; RNA origami; dsDNA; selfassembly phospholipids; model membranes; monolayer; QCM-D; DSC; Neutron reflectometry; hydrophobic interaction; cationic surfactants; sphingosine; phase behavior;

   Abstract : The work presented in the thesis “RNA in model lipid membranes- interactions in bulk and at surfaces” aims to characterize the interaction between RNA and model membranes with different properties as well as to determine if ssRNA associate with model membranes in different ways. Several techniques have been used to characterize these systems, including quartz crystal microbalance with dissipation monitoring (QCM-D), Langmuir film balance in combination with neutron reflectometry and fluorescence microscopy as well as differential scanning calorimetry (DSC) and isothermal titration calorimetry (ITC). READ MORE

7. 5. On the colloidal and molecular aspects of peptide self-assembly

   Author : Axel Rüter; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Peptide self-assembly; Aggregation kinetics; Peptide hydrogel; Small angle scattering; Rheology;

   Abstract : Peptide self-assembly is a spontaneous process, ubiquitous in nature for the creation of highly ordered and complex biological structures, making it a sought after technique in the development of novel biocompatible materials. The process is also strongly associated with various neurodegenerative diseases in the formation of amyloid plaques in diseases such as Alzheimer’s and Parkinson’s, where fully functioning proteins aggregate are reassembled into nonfunctional fibrillar aggregates that eventually lead to cell death. READ MORE