Results 51 to 60 of about 495,951 (309)

The structure of tick-borne encephalitis virus determined at X-ray free-electron lasers. Simulations

Journal of Synchrotron Radiation, 2023
The study of virus structures by X-ray free-electron lasers (XFELs) has attracted increased attention in recent decades. Such experiments are based on the collection of 2D diffraction patterns measured at the detector following the application of ...
Dameli Assalauova, Ivan A. Vartanyants
doaj   +1 more source

Megahertz single-particle imaging at the European XFEL [PDF]

Communications Physics, 2020
AbstractThe emergence of high repetition-rate X-ray free-electron lasers (XFELs) powered by superconducting accelerator technology enables the measurement of significantly more experimental data per day than was previously possible. The European XFEL is expected to provide 27,000 pulses per second, over two orders of magnitude more than any other XFEL.
Egor Sobolev, Sergei Zolotarev, Klaus Giewekemeyer, Johan Bielecki, Kenta Okamoto, Hemanth K. N. Reddy, Jakob Andreasson, Kartik Ayyer, Imrich Barak, Sadia Bari, Anton Barty, Richard Bean, Sergey Bobkov, Henry N. Chapman, Grzegorz Chojnowski, Benedikt J. Daurer, Katerina Dörner, Tomas Ekeberg, Leonie Flückiger, Oxana Galzitskaya, Luca Gelisio, Steffen Hauf, Brenda G. Hogue, Daniel A. Horke, Ahmad Hosseinizadeh, Vyacheslav Ilyin, Chulho Jung, Chan Kim, Yoonhee Kim, Richard A. Kirian, Henry Kirkwood, Olena Kulyk, Jochen Küpper, Romain Letrun, N. Duane Loh, Kristina Lorenzen, Marc Messerschmidt, Kerstin Mühlig, Abbas Ourmazd, Natascha Raab, Andrei V. Rode, Max Rose, Adam Round, Takushi Sato, Robin Schubert, Peter Schwander, Jonas A. Sellberg, Marcin Sikorski, Alessandro Silenzi, Changyong Song, John C. H. Spence, Stephan Stern, Jolanta Sztuk-Dambietz, Anthon Teslyuk, Nicusor Timneanu, Martin Trebbin, Charlotte Uetrecht, Britta Weinhausen, Garth J. Williams, P. Lourdu Xavier, Chen Xu, Ivan A. Vartanyants, Victor S. Lamzin, Adrian Mancuso, Filipe R. N. C. Maia   +64 more
openaire   +13 more sources

Magnetic Particle Imaging tracks the long-term fate of in vivo neural cell implants with high image contrast. [PDF]

, 2015
We demonstrate that Magnetic Particle Imaging (MPI) enables monitoring of cellular grafts with high contrast, sensitivity, and quantitativeness. MPI directly detects the intense magnetization of iron-oxide tracers using low-frequency magnetic fields. MPI
Conolly, Steven, Conway, Anthony, Goodwill, Patrick, Saritas, Emine, SCHAFFER, David, Vazin, Tandis, Verma, Aradhana, Zheng, Bo   +7 more
core   +1 more source

Complex imaging of phase domains by deep neural networks

IUCrJ, 2021
The reconstruction of a single-particle image from the modulus of its Fourier transform, by phase-retrieval methods, has been extensively applied in X-ray structural science.
Longlong Wu, Pavol Juhas, Shinjae Yoo, Ian Robinson   +3 more
doaj   +1 more source

Trivariate polynomial approximation on Lissajous curves [PDF]

, 2015
We study Lissajous curves in the 3-cube, that generate algebraic cubature formulas on a special family of rank-1 Chebyshev lattices. These formulas are used to construct trivariate hyperinterpolation polynomials via a single 1-d Fast Chebyshev Transform (
Bos, Len, De Marchi, Stefano, Vianello, Marco   +2 more
core   +2 more sources

Reference-enhanced x-ray single-particle imaging

Optica, 2020
X-ray single-particle imaging involves the measurement of a large number of noisy diffraction patterns of isolated objects in random orientations. The missing information about these patterns is then computationally recovered in order to obtain the 3D structure of the particle.
openaire   +3 more sources

cisTEM: user-friendly software for single-particle image processing [PDF]

Acta Crystallographica Section A Foundations and Advances, 2017
We have developed new open-source software called cisTEM (computational imaging system for transmission electron microscopy) for the processing of data for high-resolution electron cryo-microscopy and single-particle averaging. cisTEM features a graphical user interface that is used to submit jobs, monitor their progress, and display results.
Grant, Tim, Rohou, Alexis, Grigorieff, Nikolaus   +2 more
openaire   +3 more sources

Single-molecule and particle detection on true portable microscopy platforms

Sensors and Actuators Reports, 2022
Point-of-care technologies (POCT) that enable early disease detection and therapeutic monitoring are crucial for the next generation of diagnostics and personalized medicine.
Lydia Skolrood, Yan Wang, Shengwei Zhang, Qingshan Wei   +3 more
doaj   +1 more source

Visualizing aerosol-particle injection for diffractive-imaging experiments

, 2015
Delivering sub-micrometer particles to an intense x-ray focus is a crucial aspect of single-particle diffractive-imaging experiments at x-ray free-electron lasers.
Awel, Salah, Chapman, Henry N., Eckerskorn, Niko, Horke, Daniel A., Kirian, Richard A., Küpper, Jochen, Rode, Andrei V., Wiedorn, Max   +7 more
core   +1 more source

Robust visualization and discrimination of nanoparticles by interferometric imaging [PDF]

, 2017
Single-molecule and single-nanoparticle biosensors are a growing frontier in diagnostics. Digital biosensors are those which enumerate all specifically immobilized biomolecules or biological nanoparticles, and thereby achieve limits of detection usually ...
Avci, Oguzhan, Connor, John H., Sevenler, Derin, Trueb, Jacob, Ünlü, M. Selim   +4 more
core   +1 more source