Results 11 to 20 of about 224,947 (269)

Structure of the crystallins [PDF]

open access: yesEye, 1999
The lens is formed from two protein superfamilies, the alpha- and beta gamma-crystallins. Representative three-dimensional structures show they both have a basic 2-beta-sheet domain fold, with the beta gamma-domain being made from two intercalating Greek keys.
C, Slingsby, N J, Clout
openaire   +2 more sources

Crystalline Amyloid Structures at Interfaces [PDF]

open access: yesAngewandte Chemie International Edition, 2009
AbstractLaying the groundwork: The interfacial self‐assembly properties of an amyloid peptide were used to develop crystalline nanostructures at air–water interfaces, which were studied by both AFM microscopy and X‐ray diffraction (see image). These structures generate regular arrays of functional groups and pave the way to controlled deposition of ...
Lepère, Mathilde   +4 more
openaire   +5 more sources

The Crystalline Structure of Pt3O4

open access: yesThe Journal of Chemical Physics, 1941
By x-ray diffraction, the chemical formula and crystal structure of Pt3O4 have been established. The crystal lattice has a body-centered cube symmetry. The edges of the cubes are 6.226A long, and there are two molecules per unit cell. A chemical method for preparing this oxide has been given by Jörgensen but Wöhler claims that the compound thus ...
Galloni, E.E., Roffo Jr., A.E.
openaire   +3 more sources

The Crystalline Structure of Benzene [PDF]

open access: yesNature, 1928
Abstract In a previous communication the writer gave the preliminary results of an investigation on the structure of solid benzene. It may be recalled that the unit cell was found to have the following dimensions at —22° C. ; a = 7·44, b = 9·65, c = 6·81 Å.
openaire   +2 more sources

A possible structure for α‐crystallin [PDF]

open access: yesFEBS Letters, 1987
α‐Crystallin, the major protein of the mammalian eye lens, is found in vivo as a multimeric aggregate composed of two closely related subunits whose molar ratio is widely variable from species to species. Attempts to determine the arrangement of the subunits within the aggregate, or even to determine the size of the aggregate and the number of subunits
Augusteyn, Robert C., Koretz, Jane F.
openaire   +1 more source

Structure and Molecular Dynamics in Metal-Containing Polyamide 6 Microparticles

open access: yesCrystals, 2022
Polymer microparticles are used in additive manufacturing, separation and purification devices, biocatalysis, or for the recognition of biomolecules. This study reports on the effect of metal fillers on the structure and molecular dynamics of polyamide 6
Filipa M. Oliveira   +3 more
doaj   +1 more source

Hybrid, Multiscale Numerical Simulations of the Equal Channel Angular Pressing (ECAP) using the Crystal Plasticity Theory [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The FEM simulations of the ECAP including real conditions of the process – the friction between the metal extruded and the die walls, as well as, the channels rounding, were done here in two scales – macro- and micro-.
Marta Wójcik
doaj   +1 more source

In situ inward epitaxial growth of bulk macroporous single crystals

open access: yesNature Communications, 2017
Porous single crystals are desirable for optoelectronic applications, but their fabrication remains challenging. Here the authors produce centimetre-sized macroporous GaN single crystals with electron mobility comparable to that of bulk crystals via in ...
Chenlong Chen   +3 more
doaj   +1 more source

Fundamental studies of isotactic polypropylene composites with brown coals: Structure–properties relationship

open access: yesJournal of Natural Fibers, 2023
Wood–polymer composites (WPCs) are commonly used in materials technology, and there is a reasonable amount of research for new kinds of green fillers.
Joanna Szymańska   +4 more
doaj   +1 more source

Microstructure, Phase Evolution, and Chemical Behavior of CrCuFeNiTiAlx High Entropy Alloys Processed by Mechanical Alloying

open access: yesEntropy, 2023
High entropy alloys (HEAs) of the type CrCuFeNiTi-Alx were processed through mechanical alloying. The aluminum concentration was varied in the alloy, to determine its effect on the HEAs’ microstructure, phase formation, and chemical behavior.
Anay del Ángel-González   +7 more
doaj   +1 more source

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