Results 91 to 100 of about 3,847 (182)

Tuning the Photochemistry of Entatic State Model Systems

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
We present the photochemistry of the entatic state model [Cu(DMEGqu)2]+/2+, a copper guanidino‐quinoline complex pair. By transient IR and UV/Vis spectroscopy, we obtained the lifetimes of the different excited states. We show that the structural effect of the guanidine tunes the photochemistry of this entatic state model.
Alexander Hoffmann, Julia Stanek, Stefan Hofmann, Michael Rampp, Benjamin Maerz, Benjamin Grimm‐Lebsanft, Melissa Kindler, Tobias Seitz, Michael Rübhausen, Wolfgang Zinth, Sonja Herres‐Pawlis   +10 more
wiley   +1 more source

Liquid jet capabilities for ultrafast chemistry at the SwissFEL Alvra instrument

Journal of Synchrotron Radiation, EarlyView.
The technical aspects of the Alvra endstation are outlined and its scientific capabilities are demonstrated with commissioning results obtained during the early years of SwissFEL's operation.The Alvra experimental station at the Swiss X‐ray free‐electron laser, SwissFEL, investigates ultrafast dynamics in chemical and biological systems using X‐ray ...
Claudio Cirelli, Emma Victoria Beale, Florian Dworkowski, Victoria Kabanova, Sven Augustin, Gregor Knopp, Chris Milne, Christoph Bostedt, Philip J. M. Johnson, Camila Bacellar   +9 more
wiley   +1 more source

SPIND: a reference-based auto-indexing algorithm for sparse serial crystallography data

IUCrJ, 2019
SPIND (sparse-pattern indexing) is an auto-indexing algorithm for sparse snapshot diffraction patterns (`stills') that requires the positions of only five Bragg peaks in a single pattern, when provided with unit-cell parameters.
Chufeng Li, Xuanxuan Li, Richard Kirian, John C. H. Spence, Haiguang Liu, Nadia A. Zatsepin   +5 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

Nanoscale mosaicity revealed in peptide microcrystals by scanning electron nanodiffraction. [PDF]

, 2019
Changes in lattice structure across sub-regions of protein crystals are challenging to assess when relying on whole crystal measurements. Because of this difficulty, macromolecular structure determination from protein micro and nanocrystals requires ...
Boyer, David R, Bustillo, Karen C, Ciston, Jim, Gallagher-Jones, Marcus, Glynn, Calina, Mancia, Kevin Canton, Minor, Andrew M, Ophus, Colin, Panova, Ouliana, Rodriguez, Jose A, Zee, Chih-Te   +10 more
core   +3 more sources

Critical point drying of brain tissue for X‐ray phase‐contrast imaging

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 759-768, May 2026.
X‐ray phase contrast tomography can efficiently image brain tissue at subcellular resolution. Critical point drying allows a gentle replacement of interstitial material by air, enhancing X‐ray phase contrast of the ultrastructural features.X‐ray phase‐contrast tomography can efficiently image brain tissue at subcellular resolution.
Safe Khan, Jonas Albers, Artem Vorobyev, Yuxin Zhang, Jakob Reichmann, Angelika Svetlove, Fabio De Marco, Ksenia Denisova, Yikai Yang, Florent Seichepine, James O. Douglas, Elizabeth Duke, Peter Cloetens, Alexandra Pacureanu, Andreas T. Schaefer, Carles Bosch   +15 more
wiley   +1 more source

Demonstration of femtosecond X-ray pump X-ray probe diffraction on protein crystals

Structural Dynamics, 2018
The development of X-ray free-electron lasers (XFELs) has opened the possibility to investigate the ultrafast dynamics of biomacromolecules using X-ray diffraction.
Nadia L. Opara, Istvan Mohacsi, Mikako Makita, Daniel Castano-Diez, Ana Diaz, Pavle Juranić, May Marsh, Alke Meents, Christopher J. Milne, Aldo Mozzanica, Celestino Padeste, Valérie Panneels, Marcin Sikorski, Sanghoon Song, Henning Stahlberg, Ismo Vartiainen, Laura Vera, Meitian Wang, Philip R. Willmott, Christian David   +19 more
doaj   +1 more source

Supersaturation-controlled microcrystallization and visualization analysis for serial femtosecond crystallography [PDF]

Scientific Reports, 2018
AbstractTime-resolved serial femtosecond crystallography with X-ray free electron laser (XFEL) holds the potential to view fast reactions occurring at near-physiological temperature. However, production and characterization of homogeneous micron-sized protein crystals at high density remain a bottleneck, due to the lack of the necessary equipments in ...
Lee, Dan Bi, Kim, Jong-Min, Seok, Jong Hyeon, Lee, Ji-Hye, Jo, Jae Deok, Mun, Ji Young, Conrad, Chelsie, Coe, Jesse, Nelson, Gerrett, Hogue, Brenda, White, Thomas A., Zatsepin, Nadia, Weierstall, Uwe, Barty, Anton, Chapman, Henry, Fromme, Petra, Spence, John, Chung, Mi Sook, Oh, Chang-Hyun, Kim, Kyung Hyun   +19 more
openaire   +4 more sources

Choosing the optimal spectroscopic toolkit to understand protein function [PDF]

, 2017
Spectroscopy was one of the earliest methods used to study the properties and reactions of proteins, and remains one of the most powerful and widely used approaches to this day. A sometimes bewildering range of spectroscopies is now available, applicable
Andrew, Barth, Benfatto, Berera, Best, Billeter, Bui, Cheung, Dworkowski, D’Angelo, Franco, Glockner, Gossert, Hough, Kern, Kovermann, Kowalska, Kutta, Le Sueur, Levantino, Li, McGeehan, Michael A. Hough, Miles, Murakawa, Orville, Ritter, Robustelli, Roder, Rygula, Strange, Strange, Svistunenko, Teilum, von Stetten, Wallace, Wishart, Wuthrich, Yang, Yano, Zuiderweg   +40 more
core   +1 more source

Non‐destructive orientation tracking of individual β‐Sn grains in die‐attach solder joints

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 617-631, May 2026.
This study introduces inclined scanning three‐dimensional X‐ray diffraction microscopy (i‐S3DXRD) that enables three‐dimensional orientation mapping of planar polycrystalline materials, revealing the thermal fatigue mechanism of Pb‐free solder joints.Understanding the failure mechanisms of Pb‐free solder joints during thermal cycling is a critical ...
Jaemyung Kim, Yujiro Hayashi, Hiroaki Tatsumi, Hiroshi Nishikawa, Makina Yabashi   +4 more
wiley   +1 more source