Results 101 to 110 of about 70,372 (266)

Quantitative Imaging of Single, Unstained Viruses with Coherent X-rays

, 2008
Since Perutz, Kendrew and colleagues unveiled the structure of hemoglobin and myoglobin based on X-ray diffraction analysis in the 1950s, X-ray crystallography has become the primary methodology used to determine the 3D structure of macromolecules ...
A. C. Steven, Adrian Mancuso, Bagrat Amirbekian, Changyong Song, Huaidong Jiang, J. Kirz, Jianwei Miao, Li Peng, Ren Sun, Sanket S. Shah, Tetsuya Ishikawa, Z. Hong Zhou   +11 more
core   +1 more source

Coherent X-Ray Diffraction Imaging of Nanostructures [PDF]

, 2015
We present here an overview of Coherent X-ray Diffraction Imaging (CXDI) with its application to nanostructures. This imaging approach has become especially important recently due to advent of X-ray Free-Electron Lasers (XFEL) and its applications to the fast developing technique of serial X-ray crystallography.
Vartanyants, Ivan A., Yefanov, Oleksandr M.   +1 more
openaire   +2 more sources

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

Advanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul, Archith Rayabharam, Lisa Almonte, Eveline Rigo, Joshy Joseph, Ashutosh Kumar, Zhuxin Dong, Narayana Aluru, Gregory Timp   +8 more
wiley   +1 more source

Unveiling nano-scale crystal deformation using coherent X-ray dynamical diffraction

npj Computational Materials
Visualization of internal deformation fields in crystalline materials helps bridge the gap between theoretical models and practical applications.
Longlong Wu, David Yang, Wei Wang, Shinjae Yoo, Ross J. Harder, Wonsuk Cha, Aiguo Li, Ian K. Robinson   +7 more
doaj   +1 more source

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

Advanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch, Sergio L. A. Mello, Gilberto Rodrigues‐Junior, Sukarno O. Ferreira, Marcelo M. Sant'Anna, Benjamin R. Salles, Mateus T. Souza, Sérgio L. Morelhão, Maybi F. Sampaio, Bráulio S. Archanjo, Leonarde N. Rodrigues   +10 more
wiley   +1 more source

Noise-robust coherent diffractive imaging with a single diffraction pattern

Optics Express, 2012
The resolution of single-shot coherent diffractive imaging at X-ray free-electron laser facilities is limited by the low signal-to-noise level of diffraction data at high scattering angles. The iterative reconstruction methods, which phase a continuous diffraction pattern to produce an image, must be able to extract information from these weak signals ...
Martin A. V., Wang F., Loh N. D., Ekeberg T., Maia F. R. N. C., Hantke M., Van Der Schot G., Hampton C. Y., Sierra R. G., Aquila A., Bajt S., Barthelmess M., Bostedt C., Bozek J. D., Coppola N., Epp S. W., Erk B., Fleckenstein H., Foucar L., Frank M., Graafsma H., Gumprecht L., Hartmann A., Hartmann R., Hauser G., Hirsemann H., Holl P., Kassemeyer S., Kimmel N., Liang M., Lomb L., Marchesini S., Nass K., Pedersoli E., Reich C., Rolles D., Rudek B., Rudenko A., Schulz J., Shoeman R. L., Soltau H., Starodub D., Steinbrener J., Stellato F., Struder L., Ullrich J., Weidenspointner G., White T. A., Wunderer C. B., Barty A., Schlichting I., Bogan M. J., Chapman H. N.   +52 more
openaire   +9 more sources

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

Advanced Functional Materials, EarlyView.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere, Yong Beom Kim, Colin Gilgenbach, James M. LeBeau, WooChul Jung, Harry L. Tuller   +5 more
wiley   +1 more source

Prospects for coherent X-ray diffraction imaging at fourth-generation synchrotron sources

IUCrJ
Coherent X-ray diffraction imaging is a lens-less microscopy technique that emerged with the advent of third-generation synchrotrons, modern detectors and computers.
Yuriy Chushkin, Federico Zontone
doaj   +1 more source

Phase Reversal Diffraction in incoherent light

, 2009
Phase reversal occurs in the propagation of an electromagnetic wave in a negatively refracting medium or a phase-conjugate interface. Here we report the experimental observation of phase reversal diffraction without the above devices.
De-Zhong Cao, J. W. Goodman, Jun Xiong, Kaige Wang, Shu Gan, Su-Heng Zhang, Xiangdong Zhang   +6 more
core   +1 more source

Growth of Millimeter‐Sized BaTaO2N Single Crystals by an NH3‐Assisted BaCl2 Flux Method

Advanced Functional Materials, EarlyView.
Millimeter‐sized BaTaO2N single crystals are successfully grown from a BaCl2 flux under NH3 flow. Their comprehensive characterization, including dielectric properties, is demonstrated, and the possible growth mechanisms are discussed. Abstract Perovskite‐type oxynitrides have attracted considerable attention due to their excellent photocatalytic ...
Ginji Harada, Mirabbos Hojamberdiev, Hajime Wagata   +2 more
wiley   +1 more source