86 citations · 194 across the 17 of their papers we have counts for
19 papers
Kinetics of ferritin crystal formation and melting in acoustically levitated droplets
Anita Girelli, Iason Andronis, Aigerim Karina +5
Understanding protein crystallization pathways is essential for controlling crystallization in structural biology, materials science, and pharmaceutical applications. Classical nuc…
Liquid-liquid phase separation precedes crystallization in supercooled water-glycerol solutions
Iason Andronis, Sharon Berkowicz, Mariia Filianina +10
Understanding the structural evolution of supercooled water-glycerol solutions is important for cryopreservation, yet distinguishing liquid-state transformations from ice crystalli…
Enhanced particle diffusion in fluctuating binary environments
Fivos Perakis, Takeshi Kawasaki, Shinji Saito
We investigate single-particle diffusion in a two-state Langevin model where the friction coefficient randomly switches between low-friction (liquid-like) and high-friction (glassy…
X-ray photon correlation spectroscopy of hydrated lysozyme at elevated pressures
Milla Åhlfeldt, Maddalena Bin, Anita Girelli +12
Pressure provides a powerful parameter to control the protein conformation state, which at sufficiently high values can lead to unfolding. Here, we investigate the effects of incre…
Nanoscale Protein Diffusion in Supercooled Cryoprotectant Solutions
Maddalena Bin, Anita Girelli, Mariia Filianina +15
Vitrification during cryopreservation requires a quantitative understanding of protein transport in deeply supercooled cryoprotectant solutions, yet direct measurements at molecula…
Depletion-Induced Interactions Modulate Nanoscale Protein Diffusion in Polymeric Crowder Solutions
Michelle Dargasz, Nimmi Das Anthuparambil, Sebastian Retzbach +26
Macromolecular crowding plays a crucial role in modulating protein dynamics in cellular and in vitro environments. Polymeric crowders such as dextran and Ficoll are known to induce…
A pipeline for Megahertz X-ray Photon Correlation Spectroscopy on soft matter samples at the MID instrument of European XFEL
Aliaksandr Leonau, Felix Brausse, James Wrigley +27
In this paper we present the experimental protocol and data processing framework for Megahertz X-ray Photon Correlation Spectroscopy (MHz-XPCS) experiments on soft matter samples,…
Softness and Hydrodynamic Interactions Regulate Lipoprotein Transport in Crowded Yolk Environments
Nimmi Das Anthuparambil, Michelle Dargasz, Sonja Timmermann +27
Low-density lipoproteins (LDLs) serve as nutrient reservoirs in egg yolk for embryonic development and as promising drug carriers. Both roles critically depend on their mobility in…
Supercritical density fluctuations and structural heterogeneity in supercooled water-glycerol microdroplets
Sharon Berkowicz, Iason Andronis, Anita Girelli +9
Recent experiments and theoretical studies strongly indicate that water exhibits a liquid-liquid phase transition (LLPT) in the supercooled domain. An open question is how the LLPT…
Coherent X-rays reveal anomalous molecular diffusion and cage effects in crowded protein solutions
Anita Girelli, Maddalena Bin, Mariia Filianina +38
Understanding protein motion within the cell is crucial for predicting reaction rates and macromolecular transport in the cytoplasm. A key question is how crowded environments affe…
Nanocrystallites Modulate Intermolecular Interactions in Cryoprotected Protein Solutions
Mariia Filianina, Maddalena Bin, Sharon Berkowicz +7
Studying protein interactions at low temperatures has important implications for optimizing cryostorage processes of biological tissue, food, and protein-based drugs. One of the ma…
Melting Domain Size and Recrystallization Dynamics of Ice Revealed by Time-Resolved X-ray Scattering
Cheolhee Yang, Marjorie Ladd-Parada, Kyeongmin Nam +13
The phase transition between water and ice is ubiquitous and one of the most important phenomena in nature. Here, we performed time-resolved x-ray scattering experiments capturing…
Coherent X-ray Scattering Reveals Nanoscale Fluctuations in Hydrated Proteins
Maddalena Bin, Mario Reiser, Mariia Filianina +15
Hydrated proteins undergo a transition in the deeply supercooled regime, which is attributed to rapid changes in hydration water and protein structural dynamics. Here, we investiga…
Atom-Specific Probing of Electron Dynamics in an Atomic Adsorbate by Time-Resolved X-ray Spectroscopy
Simon Schreck, Elias Diesen, Martina Dell'Angela +25
The electronic excitation occurring on adsorbates at ultrafast time scales from optical lasers that initiate surface chemical reactions is still an open question. Here, we report t…
Resolving molecular diffusion and aggregation of antibody proteins with megahertz X-ray free-electron laser pulses
Mario Reiser, Anita Girelli, Anastasia Ragulskaya +26
X-ray free-electron lasers (XFELs) with megahertz repetition rate can provide novel insights into structural dynamics of biological macromolecule solutions. However, very high dose…
Ultrafast adsorbate excitation probed with sub-ps resolution XAS
Elias Diesen, Hsin-Yi Wang, Simon Schreck +24
We use a pump-probe scheme to measure the time evolution of the C K-edge X-ray absorption spectrum (XAS) from CO/Ru(0001) after excitation by an ultrashort high-intensity optical l…
Brine rejection and hydrate formation upon freezing of NaCl aqueous solutions
Ifigeneia Tsironi, Daniel Schlesinger, Alexander Späh +3
Studying the freezing of saltwater on a molecular level is of fundamental importance for improving freeze desalination techniques. Here, we investigate the freezing process of NaCl…
Small-world networks of optical fiber lattices
F. Perakis, M. Mattheakis, G. P. Tsironis
We use a simple dynamical model and explore coherent dynamics of wavepackets in complex networks of optical fibers. We start from a symmetric lattice and through the application of…
Discrete nonlinear Schrödinger equation in complex networks
F. Perakis, G. P. Tsironis
We investigate dynamical aspects of the discrete nonlinear Schrödinger equation (DNLS) in finite lattices. Starting from a periodic chain with nearest neighbor interactions, we ins…