Browsing Fakultät für Chemie (inkl. GAUSS) by Title
Now showing items 422-441 of 758
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NMR Spectroscopy of Biomolecular Liquid-Liquid Phase Separation
(2024-02-09)Phase separation of biomolecules has transformed our understanding of cell organization and function, motivating intensive research in the last decade. New evidence for their critical role in mechanisms essential for ... -
NMR structural studies on the periplasmic domain of CitA and DcuS.
(2007-05-29)Two-component regulatory system represent the most frequent system for transmembrane signaling in bacteria and play a major role in the cellular adaptation to environmental conditions and ... -
Non-Cp Metal complexes Supported by Nitrogen Donor Ligands
(2001-09-21)Nitrogen donor ligands of varying steric demand and different hapticities have been explored with different metals and some of the resulting compounds have been used as precursors for the ... -
Novel Bulky Bis(benzoxazol-2-yl)methane Ligands in s-Block Metal Coordination
(2018-05-16)This thesis focusses on the preparation of bulky, NacNac-like bis(benzoxazol-2-yl)methane ligand platforms and their introduction to s-block metal coordination. Special focus is put on the synthesis of group 2 halide and ... -
Novel Cationic Sulfur Reagents and their Application in Electrophilic Group-Transfer Reactions
(2020-06-08)The two major research achievements of this work are the development of novel sulfur-based electrophilic transfer reagents based on pyridinium, as well as the extension of the reactivity of already established imidazolium ... -
Novel Near-Infrared-Emitting (Nano)Materials for Bioimaging
(2022-12-16)The scientific interest around in vivo biomedical imaging has strongly increased in recent years due to its benefits compared to other diagnostic tools. Fluorophores that emit in the near-infrared region of the electromagnetic ... -
Novel Syntheses of Nitrogen Heterocycles from Isocyanides
(2010-02-22)The direct copper(I)-catalyzed synthesis of 2,3,4-trisubstituted and 3,4-disubstituted pyrroles from substituted methyl isocyanides and acceptor-substituted acetylenes as well as the newly ... -
Novel synthetic approaches for fabrication of polymer brushes on gold surfaces via Raft polymerization: A new era for gold modification
(2018-02-14)Nanobiotechnology is an important branch of nanotechnology, which has been dramatically developed for creating functional nanoscale materials for various biomedical applications. The past few decades have witnessed ... -
Novel type of neutron polarization analysis using the multianalyser at PUMA implementation, characterization and first experiments
(2019-11-07)The PUMA polarization analysis introduces a new method for polarization analysis with neutrons, for the first time allowing the simultaneous measurement of both spin states by detecting spin-up and spin-down neutrons in ... -
Oberflächenchemie an Silicium-Nanopartikeln
(2009-02-05)Two nanocrystalline silicon powders from industrial production that differ in their primary particle size (50-300 nm and 5-10 nm), were used for surface modifications on the nanometer scale. ... -
Oberflächenstrukturen modulierter Systeme - Darstellung von regelmäßig angeordneten, polaren Nanodomänen mittels Piezoresponse Force Microscopy
(2020-07-23)Piezo force microscopy has been used to visualize nanoscaled surface charge density waves in a modulated ferroelectric system for the first time. Those self-organized structures are found in incommensurate systems close ... -
Of Resonances and Radicals – Hydrate Studies for Benchmarking
(2024-02-22)Theory experiment benchmarks are a valuable tool to improve quantum numerical methods. To provide experimental data suitable for benchmarking, this work focuses on the investigation of jet cooled hydrate clusters using ... -
Oligomer modulator anle138b and related compounds in neurodegeneration and beyond
(2020-12-10)Neurodegenerative diseases including Alzheimer’s disease, Parkinson’s disease, Creutzfeldt-Jakob disease are characterized by a progressive deterioration of brain function as a result of a gradual loss of nerve cells. Due ... -
On the chemistry of sulfur: Development of NOS bridge model systems and Stereoretentive 2,3-bis(trifluoromethyl)cyclopropanation of heteroarenes via sulfonium salts
(2025-02-05)This thesis presents research conducted across two distinct projects in sulfur chemistry. The first project focused on the synthesis of model systems based on biphenyl, xanthene, and triazamacrocyclic scaffolds to investigate ... -
On the dynamics of H atom scattering from metal surfaces
(2022-04-26)When a hydrogen atom collides with a surface it may either scatter or stick to the surface, depending on the energy loss the particle experiences during collision. It is established that non-adiabatic effects in form of ... -
One-pot, Two-step Queuing Cascades Involving a Heck Coupling, π-Allylpalladium Trapping and Diels-Alder Reaction
(2006-01-23)In the first part of this study, palladium catalyzed reactions of mono-substituted bicyclopropylidenes (66B E) with iodobenzene (67) in the presence of dienophiles 68a b have been performed. ... -
Optical Fusion Assay Based on Membrane-Coated Beads in a 2D Assembly
(2014-04-25)A novel assay of membrane fusion is established based on membrane-coated beads in a 2D assembly. This assay allows identifying the different stages of the fusion process. Membrane fusion driven by heterodimeric coiled coil ... -
Optimising His-tags for purification and phasing
(2011-07-26)Rekombinant expremierte Proteine können mit einer zusätzliche Aminosäuresequenz am C- und/oder N-Terminus, dem Protein-Tag, hergestellt werden. Bei einer bestimmten Gruppe dieser Tags erlaubt ... -
Organisation and Recognition of Artificial Transmembrane Peptides
(2016-11-15)A various number of cellular key functions such as signalling and transport are mediated by membrane proteins, which are either adhesively bound to the membrane surface or exhibit transmembrane domains. Many transmembrane ... -
Organoferrate als Intermediate in Eisen-Katalysierten Kreuzkupplungsreaktionen
(2019-05-24)In the context of this work a combination of ESI mass spectrometry, mößbauer spectroscopy and electrical conductometry was used to identify and characterize a large number of organoferrates. These anionic species, which ...