A5050748413- Lipid Membrane Structure and Behavior
- Iron oxide chemistry and applications
- Nuclear Physics and Applications
- Electrochemical Analysis and Applications
- Phase Equilibria and Thermodynamics
- Radiation Detection and Scintillator Technologies
- Surfactants and Colloidal Systems
- Electronic and Structural Properties of Oxides
- Metallic Glasses and Amorphous Alloys
- Photochromic and Fluorescence Chemistry
- Spectroscopy and Quantum Chemical Studies
- Atomic and Subatomic Physics Research
- Electron and X-Ray Spectroscopy Techniques
- Quantum Dots Synthesis And Properties
- Thermodynamic properties of mixtures
- Magnetic properties of thin films
- Material Dynamics and Properties
- Photoreceptor and optogenetics research
- Porphyrin and Phthalocyanine Chemistry
- X-ray Spectroscopy and Fluorescence Analysis
Deutsches Elektronen-Synchrotron DESY
2023-2024
Kiel University
2022-2024
Fachhochschule Kiel
2022-2024
Abstract Following the reaction of biological membranes to external stimuli reveals fundamental insights into cellular function. Here, self-assembled lipid monolayers act as model containing photoswitchable azobenzene glycolipids for investigating structural response during isomerization by combining Langmuir isotherms with X-ray scattering. Controlled in-situ trans/cis photoswitching N = double bond alters DPPC monolayer structure, causing reproducible changes in surface pressure and layer...
Liquid-liquid interfaces offer intriguing possibilities for nanomaterials growth. Here, fundamental interface-related mechanisms that control the growth behavior in these systems are studied Pb halide formation at interface between NaX + PbX2 (X = F, Cl, Br) and liquid Hg electrodes using situ X-ray scattering complementary electrochemical microscopy measurements. These studies reveal a decisive role of species nucleation compounds. In Cl- Br-containing solution, deposition starts by rapid...
The dynamics and time scales of higher-order correlations are studied in supercooled colloidal systems. A combination X-ray photon correlation spectroscopy (XPCS) cross-correlation analysis (XCCA) shows the typical slowing a hard sphere system when approaching glass transition. probed using novel function gC, tracking evolution C. With an increasing volume fraction, ratio relaxation times gC to standard individual particle obtained by XPCS increases from ∼0.4 ∼0.9. While value ∼0.5 is...
The functionality and efficiency of proteins within a biological membrane are highly dependent on both the lipid composition physiochemical properties solution. Lipid mesophases directly influenced by changes in temperature, pH, water content or due to individual single lipids such as photoswitchability. In this work, we were able induce light- temperature-driven mesophase transitions model system containing mixture 1,2-dipalmitoyl-phosphatidylcholine phospholipids azobenzene amphiphiles. We...
Understanding and controlling the structure function of liquid interfaces is a constant challenge in biology, nanoscience nanotechnology, with applications ranging from molecular electronics to controlled drug release. X-ray reflectivity grazing incidence diffraction provide invaluable probes for studying atomic scale at liquid-air interfaces. The new time-resolved laser system LISA diffractometer situated beamline P08 PETRA III synchrotron radiation source Hamburg provides pump probe....
The microscopic structure of Fe‐based metallic glasses (FeGaB) and (FeCoSiB) is investigated during in situ thermal annealing using extended X‐ray absorption fine spectroscopy (EXAFS) above the Fe–K Co–K edges. FeGaB exhibits a phase transition 450 °C, changing from amorphous glass to partially crystalline structure. Its medium‐range after this modeled α‐Fe reference structures, combined with nearest‐neighbor (NN) contributions . Local order described same model, restricted NN interactions....