Results 41 to 50 of about 334,086 (343)

Confocal X-ray technology based on capillary X-ray optics

Reviews in Analytical Chemistry, 2015
Capillary X-ray optics is versatile, and it can be used with synchrotron radiation source, conventional X-ray source, laser-plasma ultrafast X-ray source, and so forth.
Sun Tianxi, Ding Xunliang
doaj   +1 more source

Simultaneous SAXS/SANS Method at D22 of ILL: Instrument Upgrade

Applied Sciences, 2021
A customized portable SAXS instrument has recently been constructed, installed, and tested at the D22 SANS instrument at ILL. Technical characteristics of this newly established plug-and-play SAXS system have recently been reported (J. Appl. Cryst. 2020,
Ezzeldin Metwalli, Klaus Götz, Tobias Zech, Christian Bär, Isabel Schuldes, Anne Martel, Lionel Porcar, Tobias Unruh   +7 more
doaj   +1 more source

Structural and magnetic properties of CoPt mixed clusters [PDF]

, 2006
In this present work, we report a structural and magnetic study of mixed Co58Pt42 clusters. MgO, Nb and Si matrix can be used to embed clusters, avoiding any magnetic interactions between particles.
A. Guinier, A. Pérez, D. Babonneau, E. Bernstein, J. L. Dormann, J.-L. Hodeau, J.-M. Tonnerre, J.-P. Simon, L. Favre, L. Nel, M. Born, P. Mélinon, S. Stanescu, T. B. Massalski, T. Epicier, V. Dupuis   +15 more
core   +8 more sources

Focusing Capillary Optics for Use in Solution Small-Angle X-Ray Scattering

, 2007
Measurements of the global conformation of macromolecules can be carried out using small-angle X-ray scattering (SAXS). Glass focusing capillaries, manufactured at the Cornell High Energy Synchrotron Source (CHESS), have been successfully employed for ...
Andresen, Kurt, Bilderback, Donald H., Cornaby, Sterling, Kwok, Lisa W., Lamb, Jessica S., Park, Hye Yoon, Pollack, Lois, Qiu, Xiangyun, Smilgies, Detlef-M.   +8 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Small angle X-ray scattering ghost imaging

Physical Review Research
Traditional small angle X-ray scattering (SAXS) techniques utilize a focused microbeam for spatial scanning to achieve spatially resolved imaging of the nanostructures of nonuniform materials.
Feixiang Wang, Wenqiang Hua, Changzhe Zhao, Haipeng Zhang, Shumin Yang, Xiuhong Li, Biao Deng, Honglan Xie, Tiqiao Xiao   +8 more
doaj   +1 more source

Structural Characterization of the SARS-CoV-2 Replication and Transcription Complex [PDF]

Structural Dynamics
At around 30 kb, the SARS-CoV-2 genome is one of the largest viral genomes among RNA viruses. As such, the replication machinery must be prepared to quickly and efficiently replicate this genome in order for the viral infection to effectively persist. In
Jennifer L Warnock, Sharique Khan, Wellington Leite, Susan Tsutakawa, Gregory Hura, Hugh O'Neill   +5 more
doaj   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Nano-scale morphology of melanosomes revealed by small-angle X-ray scattering. [PDF]

PLoS ONE, 2014
Melanosomes are highly specialized organelles that produce and store the pigment melanin, thereby fulfilling essential functions within their host organism.
Thomas Gorniak, Tamas Haraszti, Vasyl M Garamus, Andreas R Buck, Tobias Senkbeil, Marius Priebe, Adam Hedberg-Buenz, Demelza Koehn, Tim Salditt, Michael Grunze, Michael G Anderson, Axel Rosenhahn   +11 more
doaj   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source