Results 21 to 30 of about 5,045,142 (209)

What if Cocrystallization Fails for Neutral Molecules? Screening Offered Eutectics as Alternate Pharmaceutical Materials: Leflunomide-a Case Study [PDF]

open access: yesPharmaceutical Sciences, 2019
Background: The manuscript is aimed to optimize the biopharmaceutical parameters of a poorly soluble, neutral anti-rheumatic drug ‘leflunomide’ by preparing its non-covalent derivatives (NCDs).
Madhu Bala   +2 more
doaj   +1 more source

Biodegradation of Picolinic Acid by Rhodococcus sp. PA18 [PDF]

open access: yesApplied Sciences, 2019
Picolinic acid (PA), a C2-carboxylated pyridine derivative, is a significant intermediate used in industrial production. PA is considered hazardous for the environment and human health. In this study, a Gram-positive bacterium, Rhodococcus sp. PA18, which aerobically utilizes PA as a source of carbon and energy, was isolated.
Yanting Zhang   +7 more
openaire   +2 more sources

Use of superheated liquids for the extraction of non-volatile compounds from wood: HPLC studies [PDF]

open access: yes, 2004
A study of the extraction of oak wood compounds using superheated water-ethanol mixtures ranging from 10 to 60% ethanol is reported. Identification and characterization of the extracted compounds have been made by high performance liquid chromatography ...
Chatonnet   +12 more
core   +1 more source

Polymorphism in the 1/1 Pterostilbene/Picolinic Acid Cocrystal [PDF]

open access: yesCrystal Growth & Design, 2021
The crystal structures of two new polymorphs of the 1/1 pterostilbene/picolinic acid cocrystal have been analyzed by single-crystal X-ray diffraction and studied by means of DFT calculations and a set of computational tools (QTAIM, NCIplot, MEP). The observation of a new R2 2(10) synthon in each of the two polymorphs has been analyzed energetically ...
Rafael Barbas   +3 more
openaire   +2 more sources

Iron-Catalyzed Oxidation of 1-Phenylethanol and Glycerol With Hydrogen Peroxide in Water Medium: Effect of the Nitrogen Ligand on Catalytic Activity and Selectivity

open access: yesFrontiers in Chemistry, 2020
The iron(II) complexes [Fe(bpy)3](OTf)2 (bpy = 2,2'-bipyridine; OTf = CF3SO3) (1) and [Fe(bpydeg)3](OTf)2 (bpydeg = N4,N4-bis(2-(2-methoxyethoxy)ethyl) [2,2'-bipyridine]-4,4'-dicarboxamide) (2), the latter being a newly synthesized ligand, were employed ...
Dimitri Ros   +3 more
doaj   +1 more source

Cytokines and tryptophan metabolites can predict depressive symptoms in pregnancy

open access: yesTranslational Psychiatry, 2022
Depression during and after pregnancy affects up to 20% of pregnant women, but the biological underpinnings remain incompletely understood. As pregnancy progresses, the immune system changes to facilitate fetal development, leading to distinct ...
Qiong Sha   +10 more
doaj   +1 more source

Chytridiomycosis of marine diatoms : the role of stress physiology and resistance in parasite-host recognition and accumulation of defense molecules [PDF]

open access: yes, 2017
Little is known about the role of chemotaxis in the location and attachment of chytrid zoospores to potential diatom hosts. Hypothesizing that environmental stress parameters affect parasite-host recognition, four chytrid-diatom tandem cultures ...
Karsten, Ulf   +4 more
core   +3 more sources

3-Hydroxypyridinium-2-carboxylate

open access: yesActa Crystallographica Section E, 2011
Comparable to many amino acids, the title compound, C6H5NO3, is a substitution product of picolinic acid. The molecule shows approximate non-crystallographic Cs symmetry. Like many amino acids, the molecule is present in its zwitterionic state. Intra- as
Richard Betz, Thomas Gerber
doaj   +1 more source

Highly active and selective supported rhenium catalysts for aerobic oxidation of n-Hexane and n-Heptane [PDF]

open access: yes, 2018
A series of derivative C-scorpionate rhenium complexes, i.e., [ReCl2{NNC(O)C6H5} (Hpz)(PPh3)2] (A) (where Hpz is pyrazole), [ReCl2{NNC(O)C6H5}(Hpz)2(PPh3)] (B), [ReClF {NNC(O)C6H5}(Hpz)2(PPh3)] (C), and their precursor [ReOCl3(PPh3)2] (D), immobilized on
Alegria, Elisabete   +3 more
core   +2 more sources

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