Results 121 to 130 of about 491,196 (368)

Understanding the adsorption process in ZIF-8 using high pressure crystallography and computational modelling

Nature Communications, 2018
Some porous crystalline solids change their structure upon guest inclusion. Unlocking the potential of these solids for a wide variety of applications requires full characterisation of the response to adsorption and the underlying framework–guest ...
C. Hobday, C. H. Woodall, Matthew J. Lennox, M. Frost, K. Kamenev, Tina Düren, C. Morrison, S. Moggach   +7 more
semanticscholar   +1 more source

Oxygen Evolution Reaction by Ni‐Hexacyanoferrates Nanocubes Integrated with Trigonal Selenium: Effect, Properties and Performances

Advanced Functional Materials, EarlyView.
This work describes a novel approach to obtain composite submicrometric structures of nickel hexacyanoferrate integrating trigonal selenium with the aim of enhancing the catalytic efficiency in oxygen evolution reaction (OER). Interestingly, the nanostructures undergo a cube‐to‐sphere transition that optimizes surface properties, leading to superior ...
Edlind Lushaj, Tofik Ahmed Shifa, Kassa Belay Ibrahim, Alessio Bertocco, Kamran Akbar, Isabel Barroso‐Martín, Antonia Infantes‐Molina, Enrique Rodríguez‐Castellón, Alberto Vomiero, Elisa Moretti, Federico Polo   +10 more
wiley   +1 more source

The time revolution in macromolecular crystallography

Structural Dynamics
Macromolecular crystallography has historically provided the atomic structures of proteins fundamental to cellular functions. However, the advent of cryo-electron microscopy for structure determination of large and increasingly smaller and flexible ...
Georgii Khusainov, Joerg Standfuss, Tobias Weinert   +2 more
doaj   +1 more source

Enhanced Switching Performance in Single‐Crystalline PbTiO3 Ferroelectric Memristors for Replicating Synaptic Plasticity

Advanced Functional Materials, EarlyView.
This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li, Zhiqiang Liao, Risa Kataoka, Md Sarker Shamim, Takeshi Kijima, Hiroyasu Yamahara, Hitoshi Tabata, Munetoshi Seki   +7 more
wiley   +1 more source

Is Captain Kirk a natural blonde? Do X-ray crystallographers dream of electron clouds? Comparing model-based inferences in science with fiction [PDF]

, 2018
Scientific models share one central characteristic with fiction: their relation to the physical world is ambiguous. It is often unclear whether an element in a model represents something in the world or presents an artifact of model building.
Barwich, Ann-Sophie
core  

A fixed-target platform for serial femtosecond crystallography in a hydrated environment. [PDF]

, 2020
For serial femtosecond crystallography at X-ray free-electron lasers, which entails collection of single-pulse diffraction patterns from a constantly refreshed supply of microcrystalline sample, delivery of the sample into the X-ray beam path while ...
Barthelmess, M, Batyuk, A, Coleman, MA, Evans, AC, Fischer, P, Frank, M, Gilbile, D, Grant, TD, He, W, Hunter, MS, Kuhl, TL, Meents, A, Pakendorf, T, Segelke, BW, Seuring, C, Shelby, ML   +15 more
core  

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

Advanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam, Pravin Karna, Niraj Bhatt, Sandip Thakur, Helge Heinrich, Daniel M. Hirt, Saman Zare, Christopher Jezewski, Rinus T.P. Lee, Kandabara Tapily, John T. Gaskins, Colin D. Landon, Sean W. King, Ashutosh Giri, Patrick E. Hopkins   +14 more
wiley   +1 more source

An improved cosmic crystallography method to detect holonomies in flat spaces

, 2011
A new, improved version of a cosmic crystallography method for constraining cosmic topology is introduced. Like the circles-in-the-sky method using CMB data, we work in a thin, shell-like region containing plenty of objects.
Adams, Aurich, Aurich, Aurich, Aurich, Cornish, Cornish, Ellis, Fagundes, Fagundes, Fang, Gott, H. Fujii, Hinshaw, Key, Lachieze-Rey, Lehoucq, Lehoucq, Lehoucq, Lew, Luminet, Marecki, Mota, Nowacki, Riazuelo, Roming, Roukema, Roukema, Roukema, Roukema, Roukema, Schneider, Sokolov, Starobinsky, Stevens, Uzan, Uzan, Véron-Cetty, Y. Yoshii   +38 more
core   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Conotoxins Targeting Nicotinic Acetylcholine Receptors: An Overview

Marine Drugs, 2014
Marine snails of the genus Conus are a large family of predatory gastropods with an unparalleled molecular diversity of pharmacologically active compounds in their venom.
Eline K. M. Lebbe, Steve Peigneur, Isuru Wijesekara, Jan Tytgat   +3 more
doaj   +1 more source