Results 21 to 30 of about 28,983 (170)

28-Day Oral Chronic Toxicity Study of Arctigenin in Rats

open access: yesFrontiers in Pharmacology, 2018
Arctium lappa (burdock) is the most popular daily edible vegetable in China and Japan because of its general health tonic effects. Previous studies focused on the beneficial role of Arctigenin but neglected its potential side-effects and toxicities.
Yu-jun Tan   +33 more
doaj   +1 more source

Magnetic chirality

open access: yesnpj Quantum Materials, 2022
Chirality with all broken mirror symmetries matters ubiquitously from DNA functionality, vine climbing, to the piezoelectricity of quartz crystals. Magnetic chirality means chirality in spin-ordered states or (atomic-scale or mesoscopic) spin textures ...
Sang-Wook Cheong, Xianghan Xu
doaj   +1 more source

Cu-Catalyzed Oxidative 3-Amination of Indoles via Formation of Indolyl(aryl)iodonium Imides Using o-Substituted (Diacetoxyiodo)arene as a High-Performance Hypervalent Iodine Compound

open access: yesMolecules, 2019
An oxidative 3-amination of indole derivatives using hypervalent iodine(III) and bissulfonimides, which proceeds via the formation of indolyl(aryl)iodonium imides, was developed.
Kazuhiro Watanabe, Katsuhiko Moriyama
doaj   +1 more source

Remarkable functions of sn-3 hydroxy and phosphocholine groups in 1,2-diacyl-sn-glycerolipids to induce clockwise (+)-helicity around the 1,2-diacyl moiety: Evidence from conformation analysis by 1H NMR spectroscopy

open access: yesBeilstein Journal of Organic Chemistry, 2017
Cell-membrane glycerolipids exhibit a common structural backbone of asymmetric 1,2-diacyl-sn-glycerol bearing polar head groups in the sn-3 position. In this study, the possible effects of sn-3 head groups on the helical conformational property around ...
Yoshihiro Nishida   +5 more
doaj   +1 more source

Buckling of chiral elastic rings spanned by fluid films

open access: yesVietnam Journal of Mechanics, 2022
We use variational method to examine buckling of chiral elastic rings spanned by fluid films. We find that the critical surface tension of the fluid film at which buckling occurs depends on the degree of chirality, regardless whether the ring possesses ...
Hoang Minh Tuan   +2 more
doaj   +1 more source

“Chiral” and “non-chiral” 3d Seiberg duality [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We propose a Seiberg duality for a 3d $$ \mathcal{N} $$ N = 2 Spin (7) gauge theory with F spinor matters. For F ≥ 6, the theory allows a magnetic dual description with an SU(F −4) gauge group. The matter content
openaire   +4 more sources

Cell Chirality Drives Left-Right Asymmetric Morphogenesis

open access: yesFrontiers in Cell and Developmental Biology, 2018
Most macromolecules found in cells are chiral, meaning that they cannot be superimposed onto their mirror image. However, cells themselves can also be chiral, a subject that has received little attention until very recently.
Mikiko Inaki   +2 more
doaj   +1 more source

Enatioselective Rotation of Chiral Particles by Azimuthally Polarized Beams

open access: yesAdvanced Photonics Research, 2022
The chirality‐dependent forces can offer new possibilities for passive optical separation and identification of chiral particles, which opens great opportunities to develop the technologies of pharmaceutics, chemicals, and biomedicine.
Manman Li   +4 more
doaj   +1 more source

The role of chirality and plastic crystallinity in the optical and mechanical properties of chlorosomes

open access: yesiScience, 2022
Summary: The most efficient light-harvesting antennae found in nature, chlorosomes, are molecular tubular aggregates (TMAs) assembled by pigments without protein scaffolds.
Xinmeng Li   +3 more
doaj   +1 more source

CHIRALITY IN CHEMISTRY

open access: yesCroatica Chemica Acta, 1976
© THE NOBEL FOUNDATION 1975 Nobel Lecture, December 12, 1975 by VLADIMIR PRELOG ETH, Laboratory of Organic Chemistry, Zürich ...
openaire   +4 more sources

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