Results 91 to 100 of about 228,636 (318)

Analysis of Enantiomers in Products of Food Interest

open access: yesMolecules, 2019
The separation of enantiomers has been started in the past and continues to be a topic of great interest in various fields of research, mainly because these compounds could be involved in biological processes such as, for example, those related to human ...
Chiara Fanali   +3 more
doaj   +1 more source

Chiral Separation of rac-Propylene Oxide on Penicillamine Coated Gold NPs

open access: yesNanomaterials, 2020
The surfaces of chemically synthesized spherical gold NPs (Au-NPs) have been modified using chiral L- or D-penicillamine (Pen) in order to impart enantioselective adsorption properties.
Nisha Shukla   +2 more
doaj   +1 more source

Chiral interactions, chiral states and “chiral neutrino oscillations”

open access: yesNuclear Physics B
In vacuum the ``chiral neutrino oscillations'', i.e. the periodic transitions between the left- and right-handed states do not occur. The produced state differs from the chiral component that appear in the Lagrangian of interactions and should be computed for each specific process. The phase difference between components of a produced neutrino is space-
openaire   +3 more sources

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

open access: yesAdvanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami   +15 more
wiley   +1 more source

Chiral Phonons in Chiral Materials

open access: yes, 2021
The concept of chirality makes ubiquitous appearance in nature. Particularly, both a structure and its collective excitations may acquire well defined chiralities. In this work, we reveal an intrinsic connection between the chiralities of a crystal structure and its phonon excitations. We show that the phonon chirality and its propagation direction are
Chen, Hao   +6 more
openaire   +2 more sources

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

open access: yesAdvanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng   +11 more
wiley   +1 more source

New synthetic uses for chiral 1,3-dioxolan-4-ones

open access: yes, 2008
The behaviour of chiral 1,3-dioxolan-4-ones, derived from reaction of mandelic and lactic acid with pivalaldehyde, as chiral acyl anion equivalents has been examined.
Power, Lynn A.
core  

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

open access: yesAdvanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Mirror-stacked tetra-missing rib honeycomb with persistent zero Poisson's ratio

open access: yesEPJ Applied Metamaterials
Zero Poisson's ratio (ZPR) structures have attracted significant attention due to their remarkable dimensional stability, mechanical decoupling capability, and reduction of contact-induced effects, making them desirable in various engineering ...
Li Zheng   +5 more
doaj   +1 more source

A Chiral Bipyrimidine-Bridged Dy2 SMM: A Comparative Experimental and Theoretical Study of the Correlation Between the Distortion of the DyO6N2 Coordination Sphere and the Anisotropy Barrier

open access: yesFrontiers in Chemistry, 2018
Chiral bipyrimidine-bridged dinuclear LnIII complexes of general formula [(μ-bipym){((+)-tfacam)3Ln}2] and [(μ-bipym){((-)-tfacam)3Ln}2], have been prepared from the assembly of Ln(AcO)3·nH2O (LnIII = Dy, Gd), (+)/(−)-3-(trifluoroacetyl)camphor ...
Ismael F. Díaz-Ortega   +8 more
doaj   +1 more source

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