Results 41 to 50 of about 20,494,608 (329)

Tamm states in one dimensional photonic crystals containing left-handed materials [PDF]

, 2006
We present a theoretical study of electromagnetic surface waves localized at an interface separating a conventional uniform medium and a semi-infinite 1-D photonic crystal made of alternate left-handed metamaterial and right-handed material which we ...
Abdolrahman Namdar, Garcia, Gerardin, Kramper, Malkova, Martorell, Moreno, Pendry, Shadrivov, Shadrivov, Shelby, Smith, Tamm, Veselago, Yeh, Yeh, Yeh, Zhang, Ziolkowski   +18 more
core   +2 more sources

Crystal structure prediction using ab initio evolutionary techniques: principles and applications. [PDF]

Journal of Chemical Physics, 2006
We have developed an efficient and reliable methodology for crystal structure prediction, merging ab initio total-energy calculations and a specifically devised evolutionary algorithm.
A. Oganov, C. W. Glass
semanticscholar   +1 more source

Photonic Crystal Laser Accelerator Structures [PDF]

, 2003
Photonic crystals have great potential for use as laser-driven accelerator structures. A photonic crystal is a dielectric structure arranged in a periodic geometry.
Cowan, Benjamin, Javanmard, Mehdi, Siemann, Robert H.   +2 more
core   +2 more sources

Recent developments in the Inorganic Crystal Structure Database: theoretical crystal structure data and related features

Journal of Applied Crystallography, 2019
The article discusses how theoretical crystal data are supplementing experimental data for simulation and prediction of structures of inorganic solids in the Inorganic Crystal Structure Database.
D. Zagorac, H. Müller, S. Ruehl, J. Zagorac, Silke Rehme   +4 more
semanticscholar   +1 more source

Crystal Structure of 200 K-Superconducting Phase of Sulfur Hydride System

, 2015
This article reports the experimentally clarified crystal structure of a recently discovered sulfur hydride in high temperature superconducting phase which has the highest critical temperature Tc over 200 K which has been ever reported. For understanding
Drozdov, Alexander, Einaga, Mari, Eremets, Mikhail, Hirao, Naohisa, Ishikawa, Takahiro, Ohishi, Yasuo, Sakata, Masafumi, Shimizu, Katsuya, Troyan, Ivan   +8 more
core   +1 more source

Manifestation of photonic band structure in small clusters of spherical particles [PDF]

, 2002
We study the formation of the photonic band structure in small clusters of dielectric spheres. The first signs of the band structure, an attribute of an infinite crystal, can appear for clusters of 5 particles.
A. Lagendijk, A. Moroz, A.A. Asatryan, A.A. Asatryan, A.A. Chabanov, A.A. Chabanov, Alexey Yamilov, C.W.J. Beenakker, D. Felbacq, D.S. Wiersma, E. Akkermans, E. Doron, E. Yablonovitch, F.J.G. de Abajo, G. Iannaccone, Hui Cao, J. Huang, K. Busch, K.M. Ho, K.M. Leung, L.I. Deych, L.M. Li, M.M. Sigalas, N. Stefanou, S. Fan, S. John, S.A. Ramakrishna, S.C. Lee, S.G. Johnson, V. Twersky, Y.l. Xu, Y.V. Fyodorov, Z.Y. Li   +32 more
core   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Solvothermal synthesis, crystal structure and photoluminiscence of Cd(II) coordination polymer derived from a 1,2,3-triazole-based tricarboxylate ligand

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry
A new polymeric complex of cadmium(II) was synthesized under solvothermal conditions by the reaction of 5-(4-carboxy-5-methyl-1H-1,2,3-triazol-1-yl) isophthalic acid (H3L) with cadmium nitrate tetrahydrate in a mixture of N,N-dimethylacetamide and water.
Viorina Gorincioi, Sergiu Sova, Olga Culicova, Gheorghe Roman, Vasile Lozan   +4 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source