Co-published by AIP Publishing and ACA, a peer-reviewed, open access journal publishing research on Structural Dynamics aims at capitalizing on the recent developments in experimental and theoretical methods and techniques that allow a visualization of the electronic and geometric structural changes in “real-time” of chemical, biological and condensed matter systems.
The community of scientists and engineers working on structural dynamics in such diverse systems often use similar instrumentation and methods. The journal welcomes articles dealing with fundamental problems of electronic and structural dynamics that are tackled by new methods such as:
- Time-resolved X-ray and electron diffraction and scattering
- Coherent diffractive imaging
- Time-resolved X-
The community of scientists and engineers working on structural dynamics in such diverse systems often use similar instrumentation and methods. The journal welcomes articles dealing with fundamental problems of electronic and structural dynamics that are tackled by new methods such as:
- Time-resolved X-ray and electron diffraction and scattering
- Coherent diffractive imaging
- Time-resolved X-
A new ultrafast electron diffraction apparatus uses low emittance photocathodes to perform sub-picosecond electron diffraction on micron-scale samples.
We report the design and performance of a time-resolved electron diffraction apparatus capable of producing intense bunches with simultaneously single digit micrometer probe size, long coherence le...
Probing the small-scale protein motions with a laboratory X-ray
An ordinary laboratory X-ray could be used to characterize the molecular motions of a wide variety of biological molecules.
Emerging indicator of protein dynamics demonstrates good reproducibility and sensitivity to differences in atomic motions
Data, theory, and analysis reveal signatures of atomic motions in diffuse X-ray scattering, an emerging crystallography signal.
Following recent advances in liquid phase MeV Ultrafast Electron Diffraction, the first experiments on solvated molecules are presented. The speed of photodissociation of I3- in water is revealed.
Developing femtosecond resolution methods for directly observing structural dynamics is critical to understanding complex photochemical reaction mechanisms in solution. We have used two recent deve...
Geometric machine learning algorithm helps sieve through structural data of tiny biological objects
By fusing manifold embedding with machine learning, the researchers create an algorithm that can pick out X-ray diffraction patterns of single particles from an ocean of data.
Make the right measurement: Discovery of an allosteric inhibition site for p300-HAT
Histone acetyltransferases (HATs) and histone deacetylases (HDACs) catalyze the dynamic and reversible acetylation of proteins, an epigenetic regulatory mechanism associated with multiple cancers. ...
Evaluation of serial crystallographic structure determination within megahertz pulse trains
The new European X-ray Free-Electron Laser (European XFEL) is the first X-ray free-electron laser capable of delivering intense X-ray pulses with a megahertz interpulse spacing in a wavelength rang...
Liquid-like and rigid-body motions in molecular-dynamics simulations of a crystalline protein
To gain insight into crystalline protein dynamics, we performed molecular-dynamics (MD) simulations of a periodic 2 × 2 × 2 supercell of staphylococcal nuclease. We used the resulting MD trajectori...
A tool for visualizing protein motions in time-resolved crystallography
Time-resolved serial femtosecond crystallography (TR-SFX) at an x-ray free electron laser enables protein structural changes to be imaged on time-scales from femtoseconds to seconds. It can, howeve...
A tool for visualizing protein motions in time-resolved crystallography
Time-resolved serial femtosecond crystallography (TR-SFX) at an x-ray free electron laser enables protein structural changes to be imaged on time-scales from femtoseconds to seconds. It can, howeve...
Real-time tracking of protein unfolding with time-resolved x-ray solution scattering
The correct folding of proteins is of paramount importance for their function, and protein misfolding is believed to be the primary cause of a wide range of diseases. Protein folding has been inves...
Enhanced dynamics in the anomalous melting regime of DMPG lipid membranes
Like many soft materials, lipids undergo a melting transition associated with a significant increase in their dynamics. At temperatures below the main melting transition (Tm), all molecular and col...
Femtosecond spin voltage measurement helps pull spintronics into the ultrafast domain
Observing a shift in the chemical potential of one spin direction after ultrafast demagnetization allows authors to determine the magnitude of a femtosecond spin voltage.
Generation of a large compressive strain wave in graphite by ultrashort-pulse laser irradiation
We have studied strain wave generation in graphite induced by an intense ultrashort laser pulse. The study was performed in the intensity regime above the ablation threshold of graphite. The aim wa...
Local photo-mechanical stiffness revealed in gold nanoparticles supracrystals by ultrafast small-angle electron diffraction
We demonstrate that highly ordered two-dimensional crystals of ligand-capped gold nanoparticles display a local photo-mechanical stiffness as high as that of solids such as graphite. In out-of-equi...
Local photo-mechanical stiffness revealed in gold nanoparticles supracrystals by ultrafast small-angle electron diffraction
We demonstrate that highly ordered two-dimensional crystals of ligand-capped gold nanoparticles display a local photo-mechanical stiffness as high as that of solids such as graphite. In out-of-equi...
Ultrafast structural dynamics of photo-reactions observed by time-resolved x-ray cross-correlation analysis
We applied angular X-ray Cross-Correlation analysis (XCCA) to scattering images from a femtosecond resolution X-ray free-electron laser pump-probe experiment with solvated PtPOP {[Pt2(P2O5H2)4]4–} ...
Rapid cooling technique increases nanoparticle beam density for imaging
Researchers have developed a technique that could improve the reproducibility and efficiency of imaging shock-frozen, isolated, biological, and artificial nanoparticles.
Method for developing a sub-10 fs ultrafast electron diffraction technology
The experimental observation of femtosecond dynamics in atoms and molecules by stroboscopic technologies utilizing x ray or electron flashes has attracted much attention and has rapidly developed. ...
Automated tool takes guesswork out of interpreting global structural change in proteins
A script detects and correlates electron density changes in a protein from time-resolved crystallography data.
Imaging plasma formation in isolated nanoparticles with ultrafast resonant scattering
We have recorded the diffraction patterns from individual xenon clusters irradiated with intense extreme ultraviolet pulses to investigate the influence of light-induced electronic changes on the s...
Structural dynamics of incommensurate charge-density waves tracked by ultrafast low-energy electron diffraction
We study the non-equilibrium structural dynamics of the incommensurate and nearly commensurate charge-density wave (CDW) phases in 1T- TaS 2. Employing ultrafast low-energy electron diffraction wit...
Electrolytes suppress segmental movement in microgels
A better understanding of the microgel-electrolyte interaction could advance microgel design for drug delivery and other applications.
Probing nanoscale thermal transport in a GaAs/AlGaAs heterostructure
Directly monitoring the lattice temperature evolution in the time domain using ultrafast electron diffraction reveals a decrease in thermal boundary resistance for high temperatures.
Determination of the dehydration pathway in a flexible metal–organic framework by dynamic in situ x-ray diffraction
Understanding guest exchange processes in metal–organic frameworks is an important step toward the rational design of functional materials with tailor-made properties. The dehydration of the flexib...
Researchers watch protein unfolding in real-time with X-ray solution scattering
Researchers were able to observe the structural dynamic changes of the protein apomyoglobin in solution during folding using X-ray solution scattering.
Simultaneously probing the absorption of two different materials in a tri-layer system
Measurements of absorption at the M-edge of iron and nickel with absolute timing provide greater insight into ultrafast magnetization in related materials.
Probing magnetization dynamics with nanometer scale sensitivity
A technique that uses resonant small-angle X-ray scattering and near-field masks allows for the study of non-local magnetization dynamics on a nanometer length and femtosecond timescale.
Origin of core-to-core x-ray emission spectroscopy sensitivity to structural dynamics
Recently, coherent structural dynamics in the excited state of an iron photosensitizer was observed through oscillations in the intensity of Kα x-ray emission spectroscopy (XES). Understanding the ...
Simulation of time-resolved x-ray absorption spectroscopy of ultrafast dynamics in particle-hole-excited 4‐(2-thienyl)-2,1,3-benzothiadiazole
To date, alternating co-polymers based on electron-rich and electron-poor units are the most attractive materials to control functionality of organic semiconductor layers in which ultrafast excited...
Hole dynamics in a photovoltaic donor-acceptor couple revealed by simulated time-resolved X-ray absorption spectroscopy
Theoretical and experimental methodologies that can characterize electronic and nuclear dynamics, and the coupling between the two, are needed to understand photoinduced charge transfer in molecula...
Toward time-resolved laser T-jump/X-ray probe spectroscopy in aqueous solutions
Most chemical and biochemical reactions in nature and in industrial processes are driven by thermal effects that bring the reactants above the energy barrier for reaction. In aqueous solutions, thi...
Advances and opportunities in ultrafast X-ray crystallography and ultrafast structural optical crystallography of nuclear and electronic protein dynamics
Both nuclear and electronic dynamics contribute to protein function and need multiple and complementary techniques to reveal their ultrafast structural dynamics response. Real-space information obt...
Evaluation of serial crystallographic structure determination within megahertz pulse trains
The new European X-ray Free-Electron Laser (European XFEL) is the first X-ray free-electron laser capable of delivering intense X-ray pulses with a megahertz interpulse spacing in a wavelength rang...
Imaging phonon dynamics with ultrafast electron microscopy: Kinematical and dynamical simulations
Ultrafast x-ray and electron scattering techniques have proven to be useful for probing the transient elastic lattice deformations associated with photoexcited coherent acoustic phonons. Indeed, fe...
Liquid-like and rigid-body motions in molecular-dynamics simulations of a crystalline protein
To gain insight into crystalline protein dynamics, we performed molecular-dynamics (MD) simulations of a periodic 2 × 2 × 2 supercell of staphylococcal nuclease. We used the resulting MD trajectori...
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