Results 1 to 10 of about 23,283 (229)

Enhancing effect of dimethylamine in sulfuric acid nucleation in the presence of water – a computational study [PDF]

Atmospheric Chemistry and Physics, 2010
We have studied the hydration of sulfuric acid – ammonia and sulfuric acid – dimethylamine clusters using quantum chemistry. We calculated the formation energies and thermodynamics for clusters of one ammonia or one dimethylamine molecule together with 1–
V. Loukonen, T. Kurtén, I. K. Ortega, H. Vehkamäki, A. A. H. Pádua, K. Sellegri, M. Kulmala   +6 more
doaj   +3 more sources

The charging of neutral dimethylamine and dimethylamine–sulfuric acid clusters using protonated acetone [PDF]

Atmospheric Measurement Techniques, 2015
Sulfuric acid is generally considered one of the most important substances taking part in atmospheric particle formation. However, in typical atmospheric conditions in the lower troposphere, sulfuric acid and water alone are unable to form particles.
K. Ruusuvuori, P. Hietala, O. Kupiainen-Määttä, T. Jokinen, H. Junninen, M. Sipilä, T. Kurtén, H. Vehkamäki   +7 more
doaj   +5 more sources

Impacts of pH and Base Substitution during Deaerator Treatments of Herring Milt Hydrolysate on the Odorous Content and the Antioxidant Activity

Foods, 2022
Despite the biological interest in herring milt hydrolysate (HMH), its valorization is limited by its unpleasant odor resulting from the presence of mainly amine and carbonyl compounds.
Sarah Todeschini, Véronique Perreault, Charles Goulet, Mélanie Bouchard, Pascal Dubé, Yvan Boutin, Laurent Bazinet   +6 more
doaj   +1 more source

Development of a New Deodorization Method of Herring Milt Hydrolysate: Impacts of pH, Stirring with Nitrogen and Deaerator Treatment on the Odorous Content

Foods, 2021
Herring milt hydrolysate (HMH) presents the disadvantage of being associated with an unpleasant smell limiting its use. Thus, to develop a new effective and easy-to-use deodorization method, this research aimed to deepen the knowledge regarding the ...
Sarah Todeschini, Véronique Perreault, Charles Goulet, Mélanie Bouchard, Pascal Dubé, Yvan Boutin, Laurent Bazinet   +6 more
doaj   +1 more source

Effect of Humidity on the Reactive Uptake of Ammonia and Dimethylamine by Nitrogen-Containing Secondary Organic Aerosol

Atmosphere, 2021
This study investigated the uptake of ammonia (NH3) by secondary organic aerosol (SOA) particles generated via limonene photooxidation or ozonolysis as well as the uptake of dimethylamine (DMA) by limonene ozonolysis, α-cedrene photooxidation, or toluene
Natalie R. Smith, Julia Montoya-Aguilera, Donald Dabdub, Sergey A. Nizkorodov   +3 more
doaj   +1 more source

Controllable band structure of ZnO/g-C3N4 aggregation to enhance gas sensing for the dimethylamine detection

Sensors and Actuators Reports, 2022
Volatile organoamines exist widely in various industrial and commercial products. The chronic and prolonged exposure to amines can compromise human health and cause even the risk of serious illness.
Kerui Xie, Yating Wang, Kangli Zhang, Ruihua Zhao, Zhangqi Chai, Jianping Du, Jinping Li   +6 more
doaj   +1 more source

Asymmetric Dimethylarginine (ADMA) in Pediatric Renal Diseases: From Pathophysiological Phenomenon to Clinical Biomarker and Beyond

Children, 2021
Asymmetric dimethylarginine (ADMA), an endogenous nitric oxide (NO) synthase inhibitor, inhibits NO synthesis and contributes to the pathogenesis of many human diseases.
Chien-Ning Hsu, You-Lin Tain
doaj   +1 more source

A Methylotrophic Bacterium Growing with the Antidiabetic Drug Metformin as Its Sole Carbon, Nitrogen and Energy Source

Microorganisms, 2022
Metformin is one of the most prescribed antidiabetic agents worldwide and is also considered for other therapeutic applications including cancer and endocrine disorders. It is largely unmetabolized by human enzymes and its presence in the environment has
Pauline Chaignaud, Christelle Gruffaz, Adrien Borreca, Stéphanie Fouteau, Lauriane Kuhn, Jérémy Masbou, Zoé Rouy, Philippe Hammann, Gwenaël Imfeld, David Roche, Stéphane Vuilleumier   +10 more
doaj   +1 more source

A study on the fragmentation of sulfuric acid and dimethylamine clusters inside an atmospheric pressure interface time-of-flight mass spectrometer [PDF]

Atmospheric Measurement Techniques, 2022
Sulfuric acid and dimethylamine vapours in the atmosphere can form molecular clusters, which participate in new particle formation events. In this work, we have produced, measured, and identified clusters of sulfuric acid and dimethylamine using an ...
D. Alfaouri, M. Passananti, M. Passananti, T. Zanca, L. Ahonen, J. Kangasluoma, J. Kubečka, N. Myllys, H. Vehkamäki   +8 more
doaj   +1 more source

Endogenous formation of dimethylamine [PDF]

Biochemical Journal, 1985
An understanding of the biosynthesis and metabolism of dimethylamine (DMA) is important because it is a precursor of dimethylnitrosamine (nitroso-DMA). DMA is the major short-chain aliphatic amine in human and rat urine. DMA is formed from trimethylamine (TMA), which, in turn, is a breakdown product of dietary choline.
S H, Zeisel, K A, DaCosta, J G, Fox
openaire   +2 more sources