Results 1 to 10 of about 20,155 (282)

Regulation of blood–brain barrier integrity by microbiome-associated methylamines and cognition by trimethylamine N-oxide

open access: yesMicrobiome, 2021
Background Communication between the gut microbiota and the brain is primarily mediated via soluble microbe-derived metabolites, but the details of this pathway remain poorly defined. Methylamines produced by microbial metabolism of dietary choline and l-
Lesley Hoyles   +13 more
doaj   +2 more sources

Convenient iron-catalyzed reductive aminations without hydrogen for selective synthesis of N-methylamines

open access: yesNature Communications, 2017
N-methylated amines display high biological activity in living organisms. Here, the authors show the convenient synthesis of a wide range of biologically relevant N-methylamines via reduction of nitrobenzenes using a recyclable iron catalyst and ...
Kishore Natte   +3 more
doaj   +2 more sources

High-resolution modeling of gaseous methylamines over a polluted region in China: source-dependent emissions and implications of spatial variations [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Amines have received increasing attention in recent years because of their potential role in new particle formation in the atmosphere and their impact on aerosol chemistry.
J. Mao   +17 more
doaj   +2 more sources

Modeling of gaseous methylamines in the global atmosphere: impacts of oxidation and aerosol uptake [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Gaseous amines have attracted increasing attention due to their potential role in enhancing particle nucleation and growth and affecting secondary organic aerosol formation.
F. Yu, G. Luo
doaj   +2 more sources

Plasma TMAO Concentrations and Gut Microbiota Composition in Subjects with and Without Metabolic Syndrome: Results from Pilot Study [PDF]

open access: yesMetabolites
Background/Objectives: Trimethylamine N-oxide (TMAO) is a gut microbiota-dependent metabolite considered as a risk metabolite for various non-communicable diseases.
Mohammed E. Hefni   +4 more
doaj   +2 more sources

An improved multiphase chemistry mechanism for methylamines: significant dimethylamine cloud production

open access: yesnpj Climate and Atmospheric Science
Monomethylamine (MMA), dimethylamine (DMA), and trimethylamine (TMA) are important compounds for atmospheric key processes, e.g., new particle formation (NPF). A description of their multiphase chemical processing within atmospheric models is incomplete,
Erik H. Hoffmann   +2 more
doaj   +2 more sources

Screening and Isolation of Bacterial Strains Able to Degrade Trimethylamine [PDF]

open access: yesMicroorganisms
Methylamines are present in numerous organisms and microorganisms capable of de novo trimethylamine (TMA) production are widely distributed, including microalgae.
Sebastião V. T. F. de Almeida   +2 more
doaj   +2 more sources

Oxidation of methylamine

open access: greenInternational Journal of Chemical Kinetics, 2020
AbstractA detailed chemical kinetic model for oxidation of methylamine has been developed, based on theoretical work and a critical evaluation of data from the literature. The rate coefficients for the reactions of CHNH + O CHNH / CHNH + HO, CHNH + H CH + NH, CHNH CHNH, and CHNH + O CHNH + HO were calculated from ab initio theory. The mechanism was
Peter Glarborg   +4 more
openaire   +6 more sources

PREVENTION AND CONTROL OF DIMETHYLAMINE VAPORS EMISSION: HERBICIDE PRODUCTION PLANT [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2008
The widely used herbicide, dimethylamine salt of 2,4-dichlorophenoxy acetic acid (2,4-D-DMA), is usually prepared by mixing a dimethylamine (DMA) aqueous solution with a solid 2,4-dichlorophenoxy acetic acid (2,4-D). The vapors of the both, reactants and
Zorana Arsenijević   +6 more
doaj   +5 more sources

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