Results 71 to 80 of about 7,535 (227)

Multi‐Crystal X‐Ray Diffraction (MCXRD) Bridges the Crystallographic Characterisation Gap in Chemistry and Materials Science: Application to MOFs

open access: yesAngewandte Chemie, EarlyView.
Multi‐crystal X‐ray diffraction (MCXRD) methods allow accurate structural characterisation with crystals too small for single‐crystal X‐ray diffraction and too large for electron diffraction, as demonstrated here for metal‐organic frameworks, and alleviate the radiation‐induced chemical changes that can result from using high‐intensity X‐ray sources to
Joshua P. Smith   +9 more
wiley   +2 more sources

Fixed-Target Pink-Beam Serial Synchrotron Crystallography at Pohang Light Source II

open access: yesCrystals, 2023
Serial crystallography (SX) enables the determination of the structure of macromolecules or small molecules with minimal radiation damage. In particular, biomolecule structures determined using the SX technique have the advantage of providing room ...
Yongsam Kim, Ki Hyun Nam
doaj   +1 more source

Giant Berry‐phase‐Driven X‐Ray Beam Translations in Strain‐Engineered Semiconductor Crystals

open access: yesAdvanced Materials, EarlyView.
Due to the Berry‐phase effect, X‐rays propagating in deformed crystals undergo large translations, interesting for X‐ray optics applications. Here, the lattice expansion observed upon H irradiation of dilute‐nitride semiconductors is exploited to engineer the deformation landscape of selectively hydrogenated GaAsN epilayers.
Marco Felici   +9 more
wiley   +1 more source

Sample delivery for serial crystallography at free-electron lasers and synchrotrons [PDF]

open access: yesActa Crystallographica Section D Structural Biology, 2019
The high peak brilliance and femtosecond pulse duration of X-ray free-electron lasers (XFELs) provide new scientific opportunities for experiments in physics, chemistry and biology. In structural biology, one of the major applications is serial femtosecond crystallography.
Grünbein, M., Nass Kovacs, G.
openaire   +3 more sources

Kilohertz serial crystallography with the JUNGFRAU detector at a fourth-generation synchrotron source

open access: yesIUCrJ, 2023
Serial and time-resolved macromolecular crystallography are on the rise. However, beam time at X-ray free-electron lasers is limited and most third-generation synchrotron-based macromolecular crystallography beamlines do not offer the necessary ...
Filip Leonarski   +20 more
doaj   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

An Electrospinning Sample Delivery Device for Synchrotron-Based Biomacromolecule Serial Crystallography Research

open access: yesQuantum Beam Science
Serial crystallography is a rapidly advancing experimental technology that has seen significant development in recent years. This technique enables the continuous delivery of a series of protein crystal samples to the X-ray beam, allowing for the ...
Li Yu   +8 more
doaj   +1 more source

Cinnamic‐Hydroxamic‐Acid Derivatives Exhibit Antibiotic, Anti‐Biofilm, and Supercoiling Relaxation Properties by Targeting Bacterial Nucleoid‐Associated Protein HU

open access: yesAdvanced Science, EarlyView.
Cinnamic‐hydroxamic‐acid derivatives (CHADs) are identified as novel inhibitors of the bacterial nucleoid‐associated protein HU, exhibiting potent antibacterial, anti‐biofilm (both inhibition and eradication), and DNA relaxation (anti‐supercoiling) activities. Moreover, CHADs demonstrate strong synergistic effects with multiple antibiotics.
Huan Chen   +22 more
wiley   +1 more source

The expanding toolkit for structural biology: synchrotrons, X-ray lasers and cryoEM

open access: yesIUCrJ, 2019
Structural biology continues to benefit from an expanding toolkit, which is helping to gain unprecedented insight into the assembly and organization of multi-protein machineries, enzyme mechanisms and ligand/inhibitor binding.
Stephen P. Muench   +2 more
doaj   +1 more source

Recent structural insights into the function of copper nitrite reductases. [PDF]

open access: yes, 2017
Copper nitrite reductases (CuNiR) carry out the first committed step of the denitrification pathway of the global nitrogen cycle, the reduction of nitrite (NO2(-)) to nitric oxide (NO).
Adman   +88 more
core   +1 more source

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