Results 91 to 100 of about 406,967 (342)

Cause of Chirality Consensus

open access: yes, 2009
Biological macromolecules, proteins and nucleic acids are composed exclusively of chirally pure monomers. The chirality consensus appears vital for life and it has even been considered as a prerequisite of life.
Annila, Arto   +2 more
core   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

Chirality of Intermediate Filaments and Magnetic Helicity of Active Regions

open access: yes, 2009
Filaments which form either between or around active regions (ARs) are called intermediate filaments. In spite of various theoretical studies, the origin of the chirality of filaments is still uncovered.
Babcock   +17 more
core   +1 more source

Chiral Magnetoacoustics

open access: yesFrontiers in Physics, 2022
Nonreciprocal microwave devices are key components of communication platforms. Nonreciprocity can arise in chiral systems, where chirality refers to a fixed handedness that is preserved under time reversal. Chiral excitations (quasiparticles) provide opportunities for the realization of miniaturized microwave components with directional properties.
Küß, Matthias   +2 more
openaire   +3 more sources

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

open access: yesAdvanced Functional Materials, EarlyView.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro   +9 more
wiley   +1 more source

Asymmetric synthesis of β-amino cyanoesters with contiguous tetrasubstituted carbon centers by halogen-bonding catalysis with chiral halonium salt

open access: yesBeilstein Journal of Organic Chemistry
β-Amino cyanoesters are important scaffolds because they can be transformed into useful chiral amines, amino acids, and amino alcohols. Halogen bonding, which can be formed between halogen atoms and electron-rich chemical species, is attractive because ...
Yasushi Yoshida   +3 more
doaj   +1 more source

Examples of dynamic chirality in nuclei

open access: yesEPJ Web of Conferences, 2018
In many cases the chirality was almost observed but the transition probabilities are different. This fact is clearly seen in the cases of 134Pr and 102Rh. In the case of chirality, the yrast and the side bands should be nearly degenerate.
Yavahchova M.S.   +15 more
doaj   +1 more source

The pharmacology, pharmacokinetics, and toxicity of spinosin: A mini review

open access: yesFrontiers in Pharmacology, 2022
Spinosin, a natural flavone-C-glycoside that is mainly isolated from the seeds of Ziziphus jujuba Mill. var. spinosa. It exerts the effects to ameliorate the neurological disorders, such as hypnosis effects, improvement of cognitive function, sedation ...
Xiaolan Kuang   +6 more
doaj   +1 more source

Magnetic Field Response and Chiral Symmetry of Time Reversal Invariant Topological Superconductors

open access: yes, 2013
We study the magnetic field response of the Majorana Kramers pairs of a one-dimensional time-reversal invariant (TRI) superconductors (class DIII) with or without a coexisting chirality symmetry.
Dumitrescu, Eugene   +2 more
core   +1 more source

Chirality in optical trapping and optical binding [PDF]

open access: yes, 2015
Optical trapping is a well-established technique that is increasingly used on biological substances and nanostructures. Chirality, the property of objects that differ from their mirror image, is also of significance in such fields, and a subject of much ...
Ahuja   +6 more
core   +2 more sources

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