Results 21 to 30 of about 3,983 (215)

The structure of tick-borne encephalitis virus determined at X-ray free-electron lasers. Simulations

open access: yesJournal of Synchrotron Radiation, 2023
The study of virus structures by X-ray free-electron lasers (XFELs) has attracted increased attention in recent decades. Such experiments are based on the collection of 2D diffraction patterns measured at the detector following the application of ...
Dameli Assalauova, Ivan A. Vartanyants
doaj   +1 more source

Gold Standard for macromolecular crystallography diffraction data

open access: yesIUCrJ, 2020
Macromolecular crystallography (MX) is the dominant means of determining the three-dimensional structures of biological macromolecules. Over the last few decades, most MX data have been collected at synchrotron beamlines using a large number of different
Herbert J. Bernstein   +11 more
doaj   +1 more source

Elucidating the Transition Kernel and Anharmonic Coupling in the Spin‐crossover Process of a [FeIII(qsal)2] CH3OSO3 Complex

open access: yesAngewandte Chemie, EarlyView.
Ultrafast broadband transient absorption spectroscopy and multireference excited‐state nonadiabatic calculations in an open‐shell Fe(III) complex unveil the rich electronic and vibrational dynamics detailing the key reactive modes driving the spin‐crossover process.
Soumyajit Mitra   +8 more
wiley   +2 more sources

Pink-beam serial femtosecond crystallography for accurate structure-factor determination at an X-ray free-electron laser

open access: yesIUCrJ, 2021
Serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs) enables essentially radiation-damage-free macromolecular structure determination using microcrystals that are too small for synchrotron studies. However, SFX experiments often
Karol Nass   +17 more
doaj   +1 more source

Characterization of X-ray diffraction intensity function from a biological molecule for single particle imaging

open access: yesBiophysics and Physicobiology, 2019
An attainable structural resolution of single particle imaging is determined by the characteristics of X-ray diffraction intensity, which depend on the incident X-ray intensity density and molecule size.
Atsushi Tokuhisa
doaj   +1 more source

An X-Ray Regenerative Amplifier Free-Electron Laser Using Diamond Pinhole MIrrors [PDF]

open access: yes, 2019
Free-electron lasers (FELs) have been built ranging in wavelength from long-wavelength oscillators using partial wave guiding through ultraviolet through hard x-ray FELs that are either seeded or start from noise (SASE).
Freund, Henry P.   +2 more
core   +2 more sources

Use of diamond sensors for a high-flux, high-rate X-ray pass-through diagnostic

open access: yesJournal of Synchrotron Radiation, 2022
X-ray free-electron lasers (XFELs) deliver pulses of coherent X-rays on the femtosecond time scale, with potentially high repetition rates. While XFELs provide high peak intensities, both the intensity and the centroid of the beam fluctuate strongly on a
J. Bohon   +23 more
doaj   +1 more source

MicroED data collection and processing. [PDF]

open access: yes, 2015
MicroED, a method at the intersection of X-ray crystallography and electron cryo-microscopy, has rapidly progressed by exploiting advances in both fields and has already been successfully employed to determine the atomic structures of several proteins ...
de la Cruz, M Jason   +6 more
core   +1 more source

Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays

open access: yesIUCrJ, 2020
Characterizing and controlling the uniformity of nanoparticles is crucial for their application in science and technology because crystalline defects in the nanoparticles strongly affect their unique properties.
Akinobu Niozu   +32 more
doaj   +1 more source

The new XFELs [PDF]

open access: yesNature Methods, 2018
New X-ray free-electron (XFEL) facilities will broaden access to this technology, facilitate methods development, and push boundaries in structural biology.
openaire   +1 more source

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