Results 121 to 130 of about 525,815 (289)

Grating-based phase-contrast and dark-field computed tomography: a single-shot method

open access: yesScientific Reports, 2017
Grating-based X-ray interferometry offers vast potential for imaging materials and tissues that are not easily visualised using conventional X-ray imaging.
Maximilian von Teuffenbach   +9 more
doaj   +1 more source

Shape and Interhelical Spacing of DNA Origami Nanostructures Studied by Small-Angle X-ray Scattering.

open access: yesNano letters (Print), 2016
Scaffolded DNA origami nanostructures enable the self-assembly of arbitrarily shaped objects with unprecedented accuracy. Yet, varying physiological conditions are prone to induce slight structural changes in the nanoscale architecture.
S. Fischer   +5 more
semanticscholar   +1 more source

Optical element for X-ray microscopy [PDF]

open access: yesarXiv, 2008
We present a proposal for a X-ray optical element suitable for X-ray microscopy and other X-ray-based display systems. Its principle is based on the Fresnel lenses condition and the Bragg condition for X-ray scattering on a slice of monocrystal. These conditions are fulfilled simultaneously due to a properly machined shape of the monocrystal with a ...
arxiv  

Determination of protein oligomeric structure from small‐angle X‐ray scattering

open access: yesProtein Science, 2018
Small‐angle X‐ray scattering (SAXS) is useful for determining the oligomeric states and quaternary structures of proteins in solution. The average molecular mass in solution can be calculated directly from a single SAXS curve collected on an arbitrary ...
D. Korasick, J. Tanner
semanticscholar   +1 more source

Small Angle X-ray Scattering in Thin Iron Films [PDF]

open access: yes, 2014
By small angle X-ray scattering (SAXS) and atomic force microscopy characteristic sizes are deter-mined, structural features of thin iron films deposited by magnetron evaporation onto substrates from py-roceramics are established.
Chekadanov, A.S.   +4 more
core  

Design and Application of a Gas Diffusion Electrode (GDE) Cell for Operando and In Situ Studies

open access: yesCHIMIA
Presented here is an electrochemical three-electrode Gas Diffusion Electrode (GDE) cell tailored for operandoand in situ investigations of electrocatalytic processes, with a particular focus on X-ray scattering studies.
Gustav K. H. Wiberg   +5 more
doaj   +1 more source

Anomalous small angle x-ray scattering simulations: proof of concept for distance measurements for nanoparticle-labelled biomacromolecules in solution.

open access: yesPLoS ONE, 2014
Anomalous small angle X-ray scattering can in principle be used to determine distances between metal label species on biological molecules. Previous experimental studies in the past were unable to distinguish the label-label scattering contribution from ...
Valerie J Pinfield, David J Scott
doaj   +1 more source

Windows for small-angle X-ray scattering cryostats

open access: yesJournal of Synchrotron Radiation, 2007
To determine the suitability of commonly used windows for small-angle X-ray scattering, a range of materials, including Kapton, (aluminized) Mylar, beryllium, high-purity aluminium foil, mica and silicon nitride have been studied. At small wavevector transfers, Q, in the range 2 x 10(-3) to 0.2 nm(-1), the scattering from Kapton, mica and beryllium is ...
Suresh Narayanan   +5 more
openaire   +3 more sources

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