Results 81 to 90 of about 88,128 (341)

Chirality in Liquid Crystals: from Microscopic Origins to Macroscopic Structure [PDF]

open access: yes, 1997
Molecular chirality leads to a wonderful variety of equilibrium structures, from the simple cholesteric phase to the twist-grain-boundary phases, and it is responsible for interesting and technologically important materials like ferroelectric liquid ...
Harris, A. B.   +3 more
core   +4 more sources

Peptide‐Induced Ferroelectricity in Charge‐Transfer Supramolecular Materials

open access: yesAdvanced Materials, EarlyView.
Bio‐inspired supramolecular charge‐transfer amphiphiles self‐assemble into nanoribbons in water, where peptide chirality‐induced symmetry breaking generates robust ferroelectricity across multiple systems. These water‐processable organic ferroelectrics also enhance neuronal outgrowth and electrophysiological maturity, offering a versatile strategy for ...
James V. Passarelli   +15 more
wiley   +1 more source

Spiral Galaxies as Enantiomers: Chirality, an Underlying Feature in Chemistry and Astrophysics

open access: yes, 2005
Spiral galaxies are axi-symmetric objects showing 2D-chirality when projected onto a plane. Features in common with tetrahedral molecules are pointed out, in particular the existence of a preferred chiral modality for genetic galaxies as in aminoacids ...
Aryal   +31 more
core   +1 more source

Neutral‐pH Electropolymerization of Aniline on Hierarchically Porous Laser‐Induced Graphene Electrodes for Dual Biosensing

open access: yesAdvanced Materials Technologies, EarlyView.
Neutral‐pH electropolymerization of aniline on laser‐induced graphene (LIG) produces stable, brush‐like polyaniline coatings without requiring acidic conditions. The resulting PANI–LIG electrodes exhibit enhanced electroactive surface area, efficient charge transfer, and dual sensing capability for β‐blockers and pH, providing a scalable platform ...
Angelika Łepek   +6 more
wiley   +1 more source

Utility of essential oils for development of host-based lures for Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae), vector of laurel wilt

open access: yesOpen Chemistry, 2018
Redbay ambrosia beetle, Xyleborus glabratus, is native to Southeast Asia, but subsequent to introduction in Georgia in 2002, it has become a serious invasive pest in the USA, now established in nine southeastern states. Females vector Raffaelea lauricola,
Kendra Paul E.   +5 more
doaj   +1 more source

Bay‐functionalized [7]Helicene Bilayer Nanographenes

open access: yesAdvanced Optical Materials, EarlyView.
Bay‐functionalized [7]helical bilayer nanographenes are synthesized via a scalable, modular strategy enabling late‐stage diversification. Tailored methoxy, diketone, and phenazine substitutions precisely tune redox, photophysical, and chiroptical properties, delivering strong electronic circular dichroism and bright circularly polarized luminescence ...
Anmol Thanai   +9 more
wiley   +1 more source

Stereoselective inhibition of the hERG1 potassium channel

open access: yesFrontiers in Pharmacology, 2010
A growing number of drugs have been shown to prolong cardiac repolarization, predisposing individuals to life-threatening ventricular arrhythmias known as Torsades de Pointes.
Liliana eSintra Grilo   +3 more
doaj   +1 more source

Terahertz Chiral Recognition Based on Metasurfaces

open access: yesAdvanced Photonics Research, EarlyView.
A novel terahertz chiral sensing method based on a multilayer metallic metasurface is proposed. The left‐handed circularly polarized and right‐handed circularly polarized components in the linearly polarized illuminating light into two focal points and convert them back into linear polarization for convenient measurement.
Xuyang Ji   +5 more
wiley   +1 more source

Phosphated cyclodextrins as water-soluble chiral NMR solvating agents for cationic compounds

open access: yesBeilstein Journal of Organic Chemistry, 2017
The utility of phosphated α-, β- and γ-cyclodextrins as water-soluble chiral NMR solvating agents for cationic substrates is described. Two sets of phosphated cyclodextrins, one with degrees of substitution in the 2–6 range, the other with degrees of ...
Cira Mollings Puentes, Thomas J. Wenzel
doaj   +1 more source

Examination of the optical purity of voriconazole on the brush-type stationary phase [PDF]

open access: yesKragujevac Journal of Science
The purpose of this research is to develop an HPLC method for determining the content of voriconazole enantiomers in powder for solution for infusion. Chromatographic analysis was conducted using a brush-type (Pirkle-type) stationary phase with isocratic
Turković Nemanja M.   +3 more
doaj   +1 more source

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