Results 11 to 20 of about 6,897 (199)

Capturing the sequence of events during the water oxidation reaction in photosynthesis using XFELs

FEBS Letters, 2022
Ever since the discovery that Mn was required for oxygen evolution in plants by Pirson in 1937 and the period‐four oscillation in flash‐induced oxygen evolution by Joliot and Kok in the 1970s, understanding of this process has advanced enormously using ...
P.S. Simon, H. Makita, I. Bogacz, F. Fuller, A. Bhowmick, R. Hussein, M. Ibrahim, Miao Zhang, R. Chatterjee, M. Cheah, P. Chernev, M. Doyle, A. Brewster, R. Alonso-Mori, N. Sauter, U. Bergmann, H. Dobbek, A. Zouni, J. Messinger, J. Kern, V. Yachandra, J. Yano   +21 more
semanticscholar   +1 more source

Microfluidic liquid sheets as large-area targets for high repetition XFELs

Frontiers in Molecular Biosciences, 2022
The high intensity of X-ray free electron lasers (XFELs) can damage solution-phase samples on every scale, ranging from the molecular or electronic structure of a sample to the macroscopic structure of a liquid microjet.
David J. Hoffman, Tim Brandt van Driel, T. Kroll, C. Crissman, E. Ryland, K. J. Nelson, A. Cordones, J. Koralek, D. DePonte   +8 more
semanticscholar   +1 more source

Structural dynamics probed by X-ray pulses from synchrotrons and XFELs

Comptes rendus. Physique, 2021
This review focuses on how short X-ray pulses from synchrotrons and XFELs can be used to track light-induced structural changes in molecular complexes and proteins via the pump–probe method. The upgrade of the European Synchrotron Radiation Facility to a
M. Levantino, Q. Kong, M. Cammarata, D. Khakhulin, F. Schotte, P. Anfinrud, V. Kabanova, H. Ihee, A. Plech, S. Bratos, M. Wulff   +10 more
semanticscholar   +1 more source

Microsecond hydrodynamic interactions in dense colloidal dispersions probed at the European XFEL

IUCrJ, 2021
Many soft-matter systems are composed of macromolecules or nanoparticles suspended in water. The characteristic times at intrinsic length scales of a few nanometres fall therefore in the microsecond and sub-microsecond time regimes.
Francesco Dallari, Avni Jain, Marcin Sikorski, Johannes Möller, Richard Bean, Ulrike Boesenberg, Lara Frenzel, Claudia Goy, Jörg Hallmann, Yoonhee Kim, Irina Lokteva, Verena Markmann, Grant Mills, Angel Rodriguez-Fernandez, Wojciech Roseker, Markus Scholz, Roman Shayduk, Patrik Vagovic, Michael Walther, Fabian Westermeier, Anders Madsen, Adrian P. Mancuso, Gerhard Grübel, Felix Lehmkühler   +23 more
doaj   +1 more source

Development of arrival-time diagnostic tool for X-ray pump-probe experiments at Shanghai Soft X-ray Free Electron Laser. [PDF]

J Synchrotron Radiat
The development of a timing diagnostic tool at the CSI endstation of the Shanghai Soft X‐ray Free Electron Laser Facility achieves precise temporal characterization for advanced pump–probe experiments. The tool's unique design enables X‐ray pulse monitoring without sample‐stage rotation with both spectral‐encoding and spatial‐coupling methods, offering
Qiao Z, Fan J, Gao Z, Nie Y, Wen P, Wang X, Yan K, Ren H, Wang B, Jiang J, Shen Y, Zhang Y, Zhu W, Shu G, Xue C, Guo Z, Liu Z, Yang H, Qi Z, Zhang K, Liu T, Wang Z, Feng C, Tong Y, Liu Z, Jiang H.   +25 more
europepmc   +2 more sources

Analysis strategies for time-resolved X-ray solution scattering at high repetition rate XFEL sources. [PDF]

J Synchrotron Radiat
An analysis of experimental artifacts in time‐resolved X‐ray solution scattering data acquired at high repetition rate XFEL sources, specifically at the FXE instrument at the European XFEL, is presented.With the start of the user program at the European XFEL in 2017, and more recently with the LCLS‐II upgrade, the X‐ray repetition rate at X‐ray free ...
Haubro ML, Zederkof DB, Khakhulin D, Yousef H, Jiang Y, Macias IJB, Kluyver T, Lima F, Biednov M, Milne C, Uemura Y, Zalden P, Wang H, Dohn AO, Mitterer K, Markmann V, Ohlson O, Wachter-Lehn MT, Lenzen P, Jensen BK, Høholdt A, van Driel TB, Nimmrich A, Selenius E, Levi G, Møller KB, Nielsen MM, Haldrup K.   +27 more
europepmc   +2 more sources

Unsupervised learning approaches to characterizing heterogeneous samples using X-ray single-particle imaging

IUCrJ, 2022
One of the outstanding analytical problems in X-ray single-particle imaging (SPI) is the classification of structural heterogeneity, which is especially difficult given the low signal-to-noise ratios of individual patterns and the fact that even ...
Yulong Zhuang, Salah Awel, Anton Barty, Richard Bean, Johan Bielecki, Martin Bergemann, Benedikt J. Daurer, Tomas Ekeberg, Armando D. Estillore, Hans Fangohr, Klaus Giewekemeyer, Mark S. Hunter, Mikhail Karnevskiy, Richard A. Kirian, Henry Kirkwood, Yoonhee Kim, Jayanath Koliyadu, Holger Lange, Romain Letrun, Jannik Lübke, Abhishek Mall, Thomas Michelat, Andrew J. Morgan, Nils Roth, Amit K. Samanta, Tokushi Sato, Zhou Shen, Marcin Sikorski, Florian Schulz, John C. H. Spence, Patrik Vagovic, Tamme Wollweber, Lena Worbs, P. Lourdu Xavier, Oleksandr Yefanov, Filipe R. N. C. Maia, Daniel A. Horke, Jochen Küpper, N. Duane Loh, Adrian P. Mancuso, Henry N. Chapman, Kartik Ayyer   +41 more
doaj   +1 more source

Complementarity of neutron, XFEL and synchrotron crystallography for defining the structures of metalloenzymes at room temperature

IUCrJ, 2022
Room-temperature macromolecular crystallography allows protein structures to be determined under close-to-physiological conditions, permits dynamic freedom in protein motions and enables time-resolved studies.
Tadeo Moreno-Chicano, Leiah M. Carey, Danny Axford, John H. Beale, R. Bruce Doak, Helen M. E. Duyvesteyn, Ali Ebrahim, Robert W. Henning, Diana C. F. Monteiro, Dean A. Myles, Shigeki Owada, Darren A. Sherrell, Megan L. Straw, Vukica Šrajer, Hiroshi Sugimoto, Kensuke Tono, Takehiko Tosha, Ivo Tews, Martin Trebbin, Richard W. Strange, Kevin L. Weiss, Jonathan A. R. Worrall, Flora Meilleur, Robin L. Owen, Reza A. Ghiladi, Michael A. Hough   +25 more
doaj   +1 more source

Pump-Probe Time-Resolved Serial Femtosecond Crystallography at X-Ray Free Electron Lasers

Crystals, 2020
With time-resolved crystallography (TRX), it is possible to follow the reaction dynamics in biological macromolecules by investigating the structure of transient states along the reaction coordinate.
Suraj Pandey, Ishwor Poudyal, Tek Narsingh Malla   +2 more
doaj   +1 more source

The Gamification of XFEL Education Using XFEL Crystal Blaster

Crystals, 2022
Novel groundbreaking techniques, such as serial femtosecond crystallography (SFX), which utilizes X-ray free-electron lasers (XFELs), have led to impressive advances in the field of structural biology. However, educating the next generation of scientists on this complex, advanced, and continuously evolving field can be challenging.
Fiacre Kabayiza, Sarah B. Woodruff, William J. Bauer   +2 more
openaire   +2 more sources