Results 41 to 50 of about 23,416 (220)

Discrete non-Abelian groups and asymptotically free models [PDF]

, 2001
We consider a two-dimensional $\sigma$-model with discrete icosahedral/dodecahedral symmetry. Using the perturbative renormalization group, we argue that this model has a different continuum limit with respect to the O(3) $\sigma$ model. Such an argument
Caracciolo, Sergio, Montanari, Andrea, Pelissetto, Andrea   +2 more
core   +2 more sources

On the thermal stability of icosahedral metallic nanoclusters: molecular dynamics simulations

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
Using molecular dynamics modeling and the embedded atom method, the thermal stability of icosahedral magic nanoclusters of Ag, Au, Cu, Ni, Pd, and Pt face-centered cubic metals was studied, i.e.
I.V. Karakeyan, V.V. Puitov, I.V. Talyzin, S.A. Vasilyev, V.M. Samsonov   +4 more
doaj   +1 more source

Assembled molecular face-rotating polyhedra to transfer chirality from two to three dimensions

Nature Communications, 2016
Protein subunits on the capsids of icosahedral viruses can form patterns with rotational symmetry, which are difficult to recreate in the laboratory. Here the authors report a strategy to construct 3D chiral polyhedra with rotational faces from 2D chiral
Xinchang Wang, Yu Wang, Huayan Yang, Hongxun Fang, Ruixue Chen, Yibin Sun, Nanfeng Zheng, Kai Tan, Xin Lu, Zhongqun Tian, Xiaoyu Cao   +10 more
doaj   +1 more source

Accurate prediction of protein assembly structure by combining AlphaFold and symmetrical docking

Nature Communications, 2023
AlphaFold can predict the structures of monomeric and multimeric proteins with high accuracy but has a limit on the number of chains and residues it can fold. Here we show that a combination of AlphaFold and all-atom symmetric docking simulations enables
Mads Jeppesen, Ingemar André
doaj   +1 more source

Landau Theory and the Emergence of Chirality in Viral Capsids

, 2016
We present a generalized Landau-Brazovskii theory for the solidification of chiral molecules on a spherical surface. With increasing sphere radius one encounters first intervals where robust achiral density modulations appear with icosahedral symmetry ...
Bruinsma, Robijn, Dharmavaram, Sanjay, Klug, William, Rudnick, Joseph, Xie, Fangming   +4 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

Advanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras, Imelda Raczkiewicz, Peggy Bouquet, Jean‐Philippe Dacquin, Jeremy Dhainaut, Anne Goffard, Christophe Volkringer   +6 more
wiley   +1 more source

Extension of Caspar-Klug theory to higher order pentagonal polyhedra

Computational and Mathematical Biophysics, 2018
Many viral capsids follow an icosahedral fullerene-like structure, creating a caged polyhedral arrangement built entirely from hexagons and pentagons. Viral capsids consist of capsid proteins,which group into clusters of six (hexamers) or five (pentamers)
Sadre-Marandi Farrah, Das Praachi
doaj   +1 more source

Modeling of processes of structure formation in bimetallic nanoalloys of different composition [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
In this work the processes of an internal structure formation in copper-bearing nanoalloys of silver, cobalt and palladium were studied using molecular dynamics with a modified tight-binding potential.
V.S. Myasnichenko, N.Yu. Sdobnyakov, A.Yu. Kolosov, D.N. Sokolov, V.V. Kulagin, A.A. Khort   +5 more
doaj   +1 more source

Quartic surfaces with icosahedral symmetry [PDF]

Advances in Geometry, 2018
AbstractWe study smooth quartic surfaces in ℙ3which admit a group of projective automorphisms isomorphic to the icosahedron group.
openaire   +2 more sources