Results 71 to 80 of about 5,412 (216)

Data mining via ILP: The application of progol to a [PDF]

open access: yes, 1997
As far as this author is aware, this is the first paper to describe the application of Progol to enantioseparations. A scheme is proposed for data mining a relational database of published enantioseparations using Progol. The application of the scheme is
C.H. Bryant   +6 more
core   +2 more sources

The Role Seemingly of Amorphous Silica Gel Layers in Chiral Separations by Planar Chromatography [PDF]

open access: yes, 2007
In planar chromatography, silica gel appears as the most frequently used adsorbent. Its preference as planar chromatographic stationary phase is due to its high specific surface area (ca.
Mieczyslaw Sajewicz, Teresa Kowalska
core  

Completely Chiral Optical Force for Enantioseparation

open access: yesScientific Reports, 2016
AbstractFast and reliable separation of enantiomers of chiral nanoparticles requires elimination of all the forces that are independent of the nanoparticle handedness and creation of a sufficiently strong force that either pushes different enantiomers in opposite directions or delays the diffusion of one of them with respect to the other.
Ivan D. Rukhlenko   +6 more
openaire   +4 more sources

Experimental generation of optimally chiral azimuthally‐radially polarized beams

open access: yesNanophotonics, Volume 14, Issue 23, Page 4079-4090, 02 November 2025.
Abstract We implement a paraxial azimuthally‐radially polarized beam (ARPB), a novel class of structured light beams that can be optimal chiral (OC), leading to maximum chirality density at a given energy density. By using vectorial light shaping techniques, we successfully generated a paraxial ARPB with precise control over its features, validating ...
Albert Herrero‐Parareda   +3 more
wiley   +1 more source

Influence of mobile phase composition on the preparative separation of profens by chiral liquid chromatography [PDF]

open access: yes, 2005
The chirality of drugs is an important issue for the pharmaceutical industry, since the different enantiomers of a racemic drug may have distinct pharmacological activities, pharmacokinetic and pharmacodynamic effects. Because of its chiral selectivity,
Pais, Luís S.   +2 more
core   +4 more sources

Enantioseparation with liquid membranes

open access: yesJournal of Chemical Technology & Biotechnology, 2017
AbstractChiral resolution of racemic products is a challenging and important task in the pharmaceutical, agrochemical, flavor, polymer and fragrances industries. One of the options for these challenging separations is to use liquid membranes. Although liquid membranes have been known for almost four decades and have been used for optical resolutions ...
Angelo Gössi   +2 more
openaire   +2 more sources

Isolation, Characterization, and Stability Assessment of Pure Enantiomers of Cathinone Derivatives via Semi-Preparative HPLC-UV Using a Phenomenex Lux® 5 Column

open access: yesMolecules
In addition to well-known traditional synthetic illicit drugs like cocaine, amphetamines, and heroin, an increasing number of new psychoactive substances (NPS) are appearing on the global drug market.
Stefanie Handl   +3 more
doaj   +1 more source

Enantioseparation by crystallization using magnetic substrates

open access: yesChemical Science, 2019
Enantiospecific crystallization of the three amino acids asparagine (Asn), glutamic acid hydrochloride (Glu·HCl) and threonine (Thr), induced by ferromagnetic (FM) substrates, is reported.
Francesco Tassinari   +6 more
openaire   +4 more sources

Insights into halogen bond-driven enantioseparations

open access: yesJournal of Chromatography A, 2016
Although the halogen bond (XB) has been so far mainly studied in silico and in the solid state, its potential impact in solution is yet to be fully understood. In this study, we describe the first systematic investigation on the halogen bond in solvated environment by high-performance liquid chromatography (HPLC).
Peluso   +15 more
openaire   +4 more sources

Interfacial Coordination Induced Crystalline Metallacyclic Membrane for High‐Performance Enantioseparation

open access: yesAggregate, Volume 6, Issue 8, August 2025.
A chiral crystalline metallacyclic membrane is developed via an interfacial coordination self‐assembly of organic and metallic ligands. The ordered metallacyclic membrane exhibits exceptional enantioseparation for racemic mixtures with ultra‐high enantioselectivity (up to 100% enantiomeric excess value) and enhanced permeance.
Run‐Hao Li   +3 more
wiley   +1 more source

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