Results 21 to 30 of about 48,807 (291)

Enantioselective effects of the fungicide metconazole on photosynthetic activity in Microcystis flos-aquae

open access: yesEcotoxicology and Environmental Safety, 2021
Enantiomers of chiral fungicides usually display different toxic effects on nontarget organisms in the surrounding environment, although there are rare reports on the enantioselective toxicity of metconazole (MEZ) to aquatic organisms, such as ...
Ling Li, Peiling Huang, Junjie Li
doaj   +1 more source

Characterization of the conglomerate form of acetyl-dl-leucine by thermal analysis and solubility measurements [PDF]

open access: yes, 2012
Starting from a mixture of enantiomers in solution, crystallization can generate different types of crystals. In order to determine which type of crystal is obtained in the case of acetylleucine, an active pharmaceutical ingredient (API), analytical ...
B. Biscans   +9 more
core   +1 more source

Pharmacokinetic study of praziquantel enantiomers and its main metabolite R-trans-4-OH-PZQ in plasma, blood and dried blood spots in Opisthorchis viverrini-infected patients [PDF]

open access: yes, 2016
Praziquantel (PZQ) is the treatment of choice for infections with the liver fluke Opisthorchis viverrini, a major health problem in Southeast Asia. However, pharmacokinetic (PK) studies investigating the disposition of PZQ enantiomers (R- and S-PZQ) and ...
Jennifer Keiser   +15 more
core   +1 more source

Pharmacological evaluation of enantiomerically separated positive allosteric modulators of cannabinoid 1 receptor, GAT591 and GAT593

open access: yesFrontiers in Pharmacology, 2022
Positive allosteric modulation of the type 1 cannabinoid receptor (CB1R) has substantial potential to treat both neurological and immune disorders.
Asher L. Brandt   +10 more
doaj   +1 more source

Cromatografia gasosa quiral na resolução de enantiômeros envolvidos em flavours de frutas

open access: yesQuímica Nova, 2014
This work addresses the use of chiral gas chromatography in resolving optically active stereoisomers and racemates found in fruit flavours. It presents the types of chiral selectors applied to terpene-derived metal coordination compounds, polysiloxane ...
Alexandre Porte   +2 more
doaj   +1 more source

Effect of Cd/Cu on the toxicity and stereoselective environmental behavior of dinotefuran in earthworms Eisenia foetida

open access: yesEcotoxicology and Environmental Safety, 2023
Pesticides and heavy metals commonly coexist in soil. In this study, the influence of Cd and Cu on the toxicity of rac-dinotefuran and the enantioselective behavior of dinotefuran enantiomers in soil-earthworm microcosms were investigated.
Yirong Zhang   +3 more
doaj   +1 more source

Enantioseparation and stereoselective dissipation of the novel chiral fungicide pydiflumetofen by ultra-high-performance liquid chromatography tandem mass spectrometry

open access: yesEcotoxicology and Environmental Safety, 2021
Pydiflumetofen is a novel and efficient broad-spectrum chiral fungicide consisting of a pair of enantiomers. A simple and sensitive chiral analytical method was established to determine the enantiomers of this chiral fungicide in food and environmental ...
Zhen Wang   +8 more
doaj   +1 more source

Enhanced mechanical and thermal strength in mixed enantiomers based supramolecular gel [PDF]

open access: yes, 2018
Mixing supramolecular gels based on enantiomers leads to re-arrangement of gel fibers at the molecular level, which results in more favorable packing and tuneable properties.
António A. Vicente (5855534)   +15 more
core   +1 more source

(±)-Peniorthoesters A and B, Two Pairs of Novel Spiro-Orthoester en-antiomers With an Unusual 1,4,6-Trioxaspi-ro[4.5]decane-7-One Unit From Penicillium minioluteum

open access: yesFrontiers in Chemistry, 2018
(±)-Peniorthoesters A and B (±1 and ±2), two pairs of unprecedented spiro-orthoester enantiomers with a 1,4,6-trioxaspiro[4. 5]decane-7-one unit, were obtained from Penicillium minioluteum. Their structures were determined by spectroscopic methods, X-ray
Xiaorui Liu   +10 more
doaj   +1 more source

Enantiospecific effects of ketoconazole on aryl hydrocarbon receptor. [PDF]

open access: yesPLoS ONE, 2014
Azole antifungal ketoconazole (KET) was demonstrated to activate aryl hydrocarbon receptor (AhR). Since clinically used KET is a racemic mixture of two cis-enantiomers (2R,4S)-(+)-KET and (2S,4R)-(-)-KET, we examined the effects of KET enantiomers on AhR
Aneta Novotna   +8 more
doaj   +1 more source

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