Results 31 to 40 of about 447,439 (374)

Effects of the Domain Wall Conductivity on the Domain Formation under AFM-Tip Voltages in Ion-Sliced LiNbO3 Films

open access: yesCrystals, 2020
The specified domain patterns were written by AFM-tip voltages in LiNbO3 films composing LNOI (LiNbO3-on-insulator). The domain wall conductivity (DWC) was estimated in the written patterns.
Radmir Gainutdinov, Tatyana Volk
doaj   +1 more source

Precise local control of liquid crystal pretilt on polymer layers by focused ion beam nanopatterning

open access: yesBeilstein Journal of Nanotechnology, 2019
Background: The alignment of liquid crystals by surfaces is crucial for applications. It determines the director configuration in the bulk, its stability against defects and electro-optical switching scenarios. The conventional planar alignment of rubbed
Maxim V. Gorkunov   +4 more
doaj   +1 more source

Real-space refinement in PHENIX for cryo-EM and crystallography

open access: yesbioRxiv, 2018
This article describes the implementation of real-space refinement in the phenix.real_space_refine program from the Phenix suite. Use of a simplified refinement target function enables fast calculation, which in turn makes it possible to identify optimal
P. Afonine   +6 more
semanticscholar   +1 more source

Crystallography with powders

open access: yesNature Materials, 2014
Over the course of its long history, powder diffraction has provided countless insights into the properties of materials. It will continue to do so in the future, but with an emphasis on elucidating how materials respond to external stimuli.
Anthony K. Cheetham, Andrew L. Goodwin
openaire   +2 more sources

The Crystallography of Color Superconductivity [PDF]

open access: yes, 2002
We develop the Ginzburg-Landau approach to comparing different possible crystal structures for the crystalline color superconducting phase of QCD, the QCD incarnation of the Larkin-Ovchinnikov-Fulde-Ferrell phase.
A.G. Truscott   +57 more
core   +4 more sources

Protein X-ray Crystallography and Drug Discovery

open access: yesMolecules, 2020
With the advent of structural biology in the drug discovery process, medicinal chemists gained the opportunity to use detailed structural information in order to progress screening hits into leads or drug candidates.
L. Maveyraud, L. Mourey
semanticscholar   +1 more source

Structural insights into recognition of chemokine receptors by Staphylococcus aureus leukotoxins

open access: yeseLife, 2022
Staphylococcus aureus (SA) leukocidin ED (LukED) belongs to a family of bicomponent pore forming toxins that play important roles in SA immune evasion and nutrient acquisition.
Paul Lambey   +12 more
doaj   +1 more source

Interstitial Fractionalization and Spherical Crystallography [PDF]

open access: yes, 2007
Finding the ground states of identical particles packed on spheres has relevance for stabilizing emulsions and a venerable history in the literature of theoretical physics and mathematics.
Altschuler   +29 more
core   +3 more sources

PRODRG: a tool for high-throughput crystallography of protein-ligand complexes.

open access: yesActa Crystallographica Section D: Biological Crystallography, 2004
The small-molecule topology generator PRODRG is described, which takes input from existing coordinates or various two-dimensional formats and automatically generates coordinates and molecular topologies suitable for X-ray refinement of protein-ligand ...
A. W. Schüttelkopf, D. V. van Aalten
semanticscholar   +1 more source

Virus Crystallography

open access: yesMolecular Biotechnology, 1999
Virus crystallography can provide atomic resolution structures for intact isometric virus particles and components thereof. The methodology is illustrated by reference to a particularly complex example, the core of the bluetongue virus (700 A).
Fry, E, Grimes, J, Stuart, D
openaire   +3 more sources

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