Results 1 to 10 of about 139 (73)

Visualization of a Mammalian Mitochondrion by Coherent X-ray Diffractive Imaging [PDF]

Scientific Reports, 2017
We report a three dimensional (3D) quantitative visualization of a mammalian mitochondrion by coherent x-ray diffractive imaging (CXDI) using synchrotron radiation.
Yoonhee Kim, Chan Kim, Ou Young Kwon, Daewoong Nam, Sang Soo Kim, Jae Hyun Park, Sunam Kim, Marcus Gallagher-Jones, Yoshiki Kohmura, Tetsuya Ishikawa, Changyong Song, Giyoong Tae, Do Young Noh   +12 more
doaj   +6 more sources

Experimental 3D coherent diffractive imaging from photon-sparse random projections [PDF]

IUCrJ, 2019
The routine atomic resolution structure determination of single particles is expected to have profound implications for probing structure–function relationships in systems ranging from energy-storage materials to biological molecules.
K. Giewekemeyer, A. Aquila, N.-T. D. Loh, Y. Chushkin, K. S. Shanks, J.T. Weiss, M. W. Tate, H. T. Philipp, S. Stern, P. Vagovic, M. Mehrjoo, C. Teo, M. Barthelmess, F. Zontone, C. Chang, R. C. Tiberio, A. Sakdinawat, G. J. Williams, S. M. Gruner, A. P. Mancuso   +19 more
doaj   +4 more sources

An advanced workflow for single-particle imaging with the limited data at an X-ray free-electron laser. Corrigendum [PDF]

IUCrJ, 2022
An error in Fig. 3(c) of the article by Assalauova et al. [IUCrJ (2020), 7, 1102–1113] is corrected.
Dameli Assalauova, Young Yong Kim, Sergey Bobkov, Ruslan Khubbutdinov, Max Rose, Roberto Alvarez, Jakob Andreasson, Eugeniu Balaur, Alice Contreras, Hasan DeMirci, Luca Gelisio, Janos Hajdu, Mark S. Hunter, Ruslan P. Kurta, Haoyuan Li, Matthew McFadden, Reza Nazari, Peter Schwander, Anton Teslyuk, Peter Walter, P. Lourdu Xavier, Chun Hong Yoon, Sahba Zaare, Viacheslav A. Ilyin, Richard A. Kirian, Brenda G. Hogue, Andrew Aquila, Ivan A. Vartanyants   +27 more
doaj   +2 more sources

SpeckleNN: a unified embedding for real-time speckle pattern classification in X-ray single-particle imaging with limited labeled examples [PDF]

IUCrJ, 2023
With X-ray free-electron lasers (XFELs), it is possible to determine the three-dimensional structure of noncrystalline nanoscale particles using X-ray single-particle imaging (SPI) techniques at room temperature.
Cong Wang, Eric Florin, Hsing-Yin Chang, Jana Thayer, Chun Hong Yoon   +4 more
doaj   +2 more sources

Unsupervised learning approaches to characterizing heterogeneous samples using X-ray single-particle imaging [PDF]

IUCrJ, 2022
One of the outstanding analytical problems in X-ray single-particle imaging (SPI) is the classification of structural heterogeneity, which is especially difficult given the low signal-to-noise ratios of individual patterns and the fact that even ...
Yulong Zhuang, Salah Awel, Anton Barty, Richard Bean, Johan Bielecki, Martin Bergemann, Benedikt J. Daurer, Tomas Ekeberg, Armando D. Estillore, Hans Fangohr, Klaus Giewekemeyer, Mark S. Hunter, Mikhail Karnevskiy, Richard A. Kirian, Henry Kirkwood, Yoonhee Kim, Jayanath Koliyadu, Holger Lange, Romain Letrun, Jannik Lübke, Abhishek Mall, Thomas Michelat, Andrew J. Morgan, Nils Roth, Amit K. Samanta, Tokushi Sato, Zhou Shen, Marcin Sikorski, Florian Schulz, John C. H. Spence, Patrik Vagovic, Tamme Wollweber, Lena Worbs, P. Lourdu Xavier, Oleksandr Yefanov, Filipe R. N. C. Maia, Daniel A. Horke, Jochen Küpper, N. Duane Loh, Adrian P. Mancuso, Henry N. Chapman, Kartik Ayyer   +41 more
doaj   +2 more sources

Single-shot X-ray imaging of two-dimensional strain fields in colloidal crystals [PDF]

IUCrJ
We used a soft X-ray free-electron laser and the Bragg coherent diffraction imaging method to characterize the defect structure of colloidal crystals. The single-shot X-ray pulse allowed us to reach four powder rings and measured all six reflections of ...
Jiecheng Diao, Zichen Gao, Jiadong Fan, Yajun Tong, Hang Ren, Yonggan Nie, Ian Robinson, Huaidong Jiang   +7 more
doaj   +2 more sources

Water window ptychographic imaging with characterized coherent X-rays. [PDF]

J Synchrotron Radiat, 2015
We report on a ptychographical coherent diffractive imaging experiment in the water window with focused soft X-rays at $500~\mathrm{eV}$. An X-ray beam with high degree of coherence was selected for ptychography at the P04 beamline of the PETRA III ...
Rose M, Skopintsev P, Dzhigaev D, Gorobtsov O, Senkbeil T, von Gundlach A, Gorniak T, Shabalin A, Viefhaus J, Rosenhahn A, Vartanyants I.   +10 more
europepmc   +4 more sources

Analysis of XFEL serial diffraction data from individual crystalline fibrils [PDF]

IUCrJ, 2017
Serial diffraction data collected at the Linac Coherent Light Source from crystalline amyloid fibrils delivered in a liquid jet show that the fibrils are well oriented in the jet.
David H. Wojtas, Kartik Ayyer, Mengning Liang, Estelle Mossou, Filippo Romoli, Carolin Seuring, Kenneth R. Beyerlein, Richard J. Bean, Andrew J. Morgan, Dominik Oberthuer, Holger Fleckenstein, Michael Heymann, Cornelius Gati, Oleksandr Yefanov, Miriam Barthelmess, Eirini Ornithopoulou, Lorenzo Galli, P. Lourdu Xavier, Wai Li Ling, Matthias Frank, Chun Hong Yoon, Thomas A. White, Saša Bajt, Anna Mitraki, Sebastien Boutet, Andrew Aquila, Anton Barty, V. Trevor Forsyth, Henry N. Chapman, Rick P. Millane   +29 more
doaj   +2 more sources

Coherence properties of focused X-ray beams at high-brilliance synchrotron sources. [PDF]

J Synchrotron Radiat, 2014
An analytical approach describing properties of focused partially coherent X-ray beams is presented. The method is based on the results of statistical optics and gives both the beam size and transverse coherence length at any distance behind an optical ...
Singer A, Vartanyants IA.
europepmc   +3 more sources

XFELs for structure and dynamics in biology. [PDF]

IUCrJ, 2017
: The development and application of the free-electron X-ray laser (XFEL) to structure and dynamics in biology since its inception in 2009 are reviewed. The research opportunities which result from the ability to outrun most radiation-damage effects are ...
Spence JCH.
europepmc   +6 more sources