Results 1 to 10 of about 1,637 (87)

Orthogonal assembly of hetero-porous structures by reversible adaptation for efficient isomeric separation [PDF]

open access: yesNature Communications
Isomers separation is a challenging but crucial process in biological and chemical processes. Mixed-matrix membranes (MMMs) combining selective adsorbents within the polymer matrix have the potential for separating isomeric mixtures. However, the limited
Qi Mou   +11 more
doaj   +2 more sources

Chiral Recognition for Chromatography and Membrane-Based Separations: Recent Developments and Future Prospects

open access: yesMolecules, 2021
With the rapid development of global industry and increasingly frequent product circulation, the separation and detection of chiral drugs/pesticides are becoming increasingly important. The chiral nature of substances can result in harm to the human body,
Yuan Zhao   +4 more
doaj   +1 more source

Enantioselective Liquid Chromatographic Separations Using Macrocyclic Glycopeptide-Based Chiral Selectors

open access: yesMolecules, 2021
Numerous chemical compounds of high practical importance, such as drugs, fertilizers, and food additives are being commercialized as racemic mixtures, although in most cases only one of the isomers possesses the desirable properties. As our understanding
Róbert Berkecz   +3 more
doaj   +1 more source

Measurement of enantiomer percentages for five monoterpenes from six conifer species by cartridge-tube-based passive sampling adsorption–thermal desorption (ps-ATD) [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
Many monoterpenes have at least two different stereochemical forms, and many biosynthetic pathways are known to favor one product over the other(s). A rapid method was developed and used in the determination of the (-/+)-enantiomeric distributions for α ...
Y. Wang   +3 more
doaj   +1 more source

Chiral Separation of Oxazolidinone Analogs by Capillary Electrophoresis Using Anionic Cyclodextrins as Chiral Selectors: Emphasis on Enantiomer Migration Order

open access: yesMolecules, 2023
Comparative chiral separations of enantiomeric pairs of four oxazolidinone and two related thio-derivatives were performed by capillary electrophoresis, using cyclodextrins (CDs) as chiral selectors.
Zoltán-István Szabó   +5 more
doaj   +1 more source

Cromatografia em leito móvel simulado na produção de substâncias enantiomericamente puras ou enriquecidas em larga escala

open access: yesQuímica Nova, 2006
There is great interest nowadays in the use of preparative liquid chromatography as an effective tool for the production of enantiomerically pure, or enriched, compounds for the pharmaceutical industry.
Ivanildo José da Silva Junior   +5 more
doaj   +3 more sources

Synthesis of Polyanionic Cellulose Carbamates by Homogeneous Aminolysis in an Ionic Liquid/DMF Medium

open access: yesMolecules, 2022
Polyanionic cellulose carbamates were synthesized by rapid and efficient homogeneous aminolysis of cellulose carbonate half-esters in an ionic liquid/DMF medium.
Cuong Viet Bui   +2 more
doaj   +1 more source

Development of a Preparative Method for Obtaining an Enantiomerically Pure Substance of Salbutamol by Supercritical Fluid Chromatography

open access: yesРазработка и регистрация лекарственных средств, 2022
Introduction. An increasing number of studies conducted in various countries in the field of biopharmacy convincingly show the differences in the physiological effects on the human body of stereoisomers of pharmaceutical substances. As a rule, one of the
V. N. Tsarev   +2 more
doaj   +1 more source

Chiral Mesoporous Silica Materials: A Review on Synthetic Strategies and Applications

open access: yesMolecules, 2020
Because of its tunable textural properties and chirality feature, chiral mesoporous silica (CMS) gained significant consideration in many fields and has been developed rapidly in recent years.
Mingshu Cui   +4 more
doaj   +1 more source

Non-canonical d-xylose and l-arabinose metabolism via d-arabitol in the oleaginous yeast Rhodosporidium toruloides

open access: yesMicrobial Cell Factories, 2023
R. toruloides is an oleaginous yeast, with diverse metabolic capacities and high tolerance for inhibitory compounds abundant in plant biomass hydrolysates. While R.
Paul A. Adamczyk   +2 more
doaj   +1 more source

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