Results 61 to 70 of about 3,983 (215)

The structure of intact and active Photosystem II from Arabidopsis thaliana at 2.44 Å resolution

New Phytologist, Volume 250, Issue 5, Page 3014-3025, June 2026.
Summary Photosystem II (PS II) is a large membrane‐bound protein complex that catalyses light‐driven water oxidation in plants and cyanobacteria. The structure of PS II is well studied in cyanobacteria; however, there are very few PS II structures from plants.
Jack Forsman, André T. Graça, Abuzer Orkun Aydin, Michael Hall, Rana Hussein, Wolfgang P. Schröder, Johannes Messinger   +6 more
wiley   +1 more source

Crystal structure of a bacterial photoactivated adenylate cyclase determined by serial femtosecond and serial synchrotron crystallography

IUCrJ
OaPAC is a recently discovered blue-light-using flavin adenosine dinucleotide (BLUF) photoactivated adenylate cyclase from the cyanobacterium Oscillatoria acuminata that uses adenosine triphosphate and translates the light signal into the production of ...
Sofia M. Kapetanaki, Nicolas Coquelle, David von Stetten, Martin Byrdin, Ronald Rios-Santacruz, Richard Bean, Johan Bielecki, Mohamed Boudjelida, Zsuzsana Fekete, Geoffrey W. Grime, Huijong Han, Caitlin Hatton, Sravya Kantamneni, Konstantin Kharitonov, Chan Kim, Marco Kloos, Faisal H. M. Koua, Iñaki de Diego Martinez, Diogo Melo, Lukas Rane, Adam Round, Ekaterina Round, Abhisakh Sarma, Robin Schubert, Joachim Schulz, Marcin Sikorski, Mohammad Vakili, Joana Valerio, Jovana Vitas, Raphael de Wijn, Agnieszka Wrona, Ninon Zala, Arwen Pearson, Katerina Dörner, Giorgio Schirò, Elspeth F. Garman, András Lukács, Martin Weik   +37 more
doaj   +1 more source

Perspectives on single particle imaging with x rays at the advent of high repetition rate x-ray free electron laser sources

Structural Dynamics, 2020
X-ray free electron lasers (XFELs) now routinely produce millijoule level pulses of x-ray photons with tens of femtoseconds duration. Such x-ray intensities gave rise to the idea that weakly scattering particles—perhaps single biomolecules or viruses ...
Johan Bielecki, Filipe R. N. C. Maia, Adrian P. Mancuso   +2 more
doaj   +1 more source

Effect of Adatom Energy on the Interfacial and Surface Morphology of Pulsed DC Sputtered Ruthenium Thin Films

Surface and Interface Analysis, Volume 58, Issue 5, Page 326-333, May 2026.
ABSTRACT In the present study, we have analyzed the growth profile of ruthenium (Ru) thin films, deposited using pulsed direct current (DC) magnetron sputtering technique, by varying the sputtering voltages in the range of 150–420 V. The grazing incidence X‐ray reflectivity (GIXRR), time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS), and atomic ...
Shruti Gupta, C. Mukherjee, R. Kamparath, A. Bose, P. K. Yadav, R. K. Gupta, Mohammed H. Modi   +6 more
wiley   +1 more source

Macromolecular crystallography at SPring-8 and SACLA

Journal of Synchrotron Radiation
Since the groundbreaking determination of the first protein crystal structure by J. C. Kendrew in 1959, macromolecular crystallography (MX) has remained at the forefront of structural biology, driven by continuous technological advancements.
Masaki Yamamoto, Takashi Kumasaka
doaj   +1 more source

Characterizing and optimizing a laser-desorption molecular beam source

, 2017
The design and characterization of a new laser-desorption molecular beam source, tailored for use in x-ray-free-electron-laser and ultrashort-pulse-laser imaging experiments, is presented.
Daniel A. Horke, Daniel Gusa, Igor Rubinsky, Jochen Küpper, Karol Długołęcki, Nicole Teschmit, Rijs A. M., Vastola F. J.   +7 more
core   +2 more sources

2D‐RIXS: resonant inelastic X‐ray scattering microscopy with high energy and spatial resolutions

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 739-745, May 2026.
A resonant inelastic X‐ray scattering microscopy system with a spatial resolution of 1.0 µm combined with ultrahigh energy resolution in the soft X‐ray regime has been established.A two‐dimensional resonant inelastic X‐ray scattering (2D‐RIXS) microscopy system has been developed at beamline BL02U of NanoTerasu.
Kohei Yamamoto, Hakuto Suzuki, Jun Miyawaki   +2 more
wiley   +1 more source

The Single-Particle, Clusters and Biomolecules and Serial Femtosecond Crystallography instrument of the European X-ray Free-Electron Laser: Interaction Region Downstream at atmospheric pressure (IRD)

Journal of Synchrotron Radiation
The Single-Particle, Clusters and Biomolecules and Serial Femtosecond Crystallography (SPB/SFX) scientific instrument at the European X-Ray Free-Electron Laser (EuXFEL) became operational with user experiments in September 2017. The unique properties and
Adam Round, Piere Aller, Richard J. Bean, Johan Bielecki, Agata Butryn, Nicholas Devenish, Raphael de Wijn, Thomas Dietze, Katerina Doerner, Fabio Dall'Antonia, Pontus Fischer, Gabriele Giovanetti, Sebastian Guenther, Huijong Han, Vincent Hennicke, Chan Kim, Yoonhee Kim, Marco Kloos, Jayanath C. P. Koliyadu, Gabriel Leen, Romain Letrun, Luis Lopez Morillo, Allen M. Orville, Tim Pakendorf, Marco Ramilli, Nadja Reimers, Patrick Reinke, Juan Sanchez-Weatherby, Tokushi Sato, Robin Schubert, Joachim Schulz, Cedric Signe Takem, Marcin Sikorski, Prasad Thute, Fabian Trost, Oleksii Turkot, Patrik Vagovič, Mohammad Vakili, Raul Villanueva Guerrero, Henry N. Chapman, Alke Meents, Serguei Molodtsov, Sakura Pascarelli, Thomas Tschentscher, Adrian P. Mancuso   +44 more
doaj   +1 more source

Cooperative effects in nuclear excitation with coherent x-ray light

, 2012
The interaction between super-intense coherent x-ray light and nuclei is studied theoretically. One of the main difficulties with driving nuclear transitions arises from the very narrow nuclear excited state widths which limit the coupling between laser ...
, , , , , Adriana Pálffy, Altarelli M, André Junker, Arthur J, Barb D, Christoph H Keitel, Geloni G Kocharyan V Saldin E, Hannon J, Hunklinger S, Kagan Y, Kittel C, Ratner D, Röhlsberger R, Scully M O, Shvyd'ko Y, Tanaka H, Weckert E   +21 more
core   +1 more source

THE EUROPEAN XFEL PROJECT

, 2007
The European XFEL will be a free electron laser based on self amplified spontaneous emission in the X-ray regime. The FEL is driven by a superconducting 17.5 GeV linear accelerator, followed by 5 separate undulators both for SASE FEL radiation and incoherent radiation. Start of operation is foreseen for 2013.
openaire   +2 more sources