Results 31 to 40 of about 481,707 (338)

4-Azidocinnoline—Cinnoline-4-amine Pair as a New Fluorogenic and Fluorochromic Environment-Sensitive Probe

Molecules, 2021
A new type of fluorogenic and fluorochromic probe based on the reduction of weakly fluorescent 4-azido-6-(4-cyanophenyl)cinnoline to the corresponding fluorescent cinnoline-4-amine was developed.
Natalia A. Danilkina, Ekaterina V. Andrievskaya, Anna V. Vasileva, Anna G. Lyapunova, Andrey M. Rumyantsev, Andrey A. Kuzmin, Elena A. Bessonova, Irina A. Balova   +7 more
doaj   +1 more source

Influence of Alcoholic and Malolactic Fermentation on the Level of Biogenic Amines in Wine [PDF]

Техника и технология пищевых производств, 2021
Introduction. The concentration of biogenic amines is an important indicator of the safety of food products, especially winemaking. In grape wines, this concentration varies widely depending on the grape variety, its microbiological state, processing ...
Natalia M. Ageyeva, Anastasia A. Shirshova, Anastasia N. Tikhonova   +2 more
doaj   +1 more source

Selective removal of H2S from sour gases with microporous membranes. Part II. A liquid membrane of water-free tertiary amines [PDF]

, 1993
In the present study the application of a liquid membrane for selective removal of H2S from gases also containing CO2 was investigated. The liquid membrane was filled with pure methyl-di-ethanol-amine (MDEA). A theoretical model was developed to describe:
Kreulen, H., Smolders, C.A., Swaaij, W.P.M. van, Versteeg, G.F.   +3 more
core   +3 more sources

N-[(1R)-1-(4-Chlorophenyl)ethyl]-Cyanamide

Molbank, 2021
The title compound was synthesized by electrophilic cyanation of commercially available (R)-4-chloro-α-methylbenzylamine with cyanogen bromide in diethyl ether, and isolated as a yellow oil in 84% yield.
Rebeca González-Fernández, Pascale Crochet, Victorio Cadierno   +2 more
doaj   +1 more source

Chiral molecule adsorption on helical polymers [PDF]

, 2003
We present a lattice model for helicity induction on an optically inactive polymer due to the adsorption of exogenous chiral amine molecules. The system is mapped onto a one-dimensional Ising model characterized by an on-site polymer helicity variable ...
A. Teramoto, B. Waldeck, E. Yashima, E. Yashima, E. Yashima, H. Diamant, J. Van Gestel, J.R. Koe, M.M. Green, M.M. Green, Maria R. D’Orsogna, R.L. Selinger, R.L. Selinger, S. Lifson, Tom Chou, Y. Ashida, Y. Okamoto   +16 more
core   +1 more source

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Green Chemistry Letters and Reviews, 2017
A set of N-substituted pyrrole derivatives have been designed and synthesized using sulfonated multi-walled carbon nanotubes as a recyclable heterogeneous catalyst under ultrasound irradiation.
Hossein Naeimi, Mahla Dadaei
doaj   +1 more source

Titanium-Mediated Reduction of Carboxamides to Amines with Borane–Ammonia

Molecules, 2023
In this study, the successful titanium tetrachloride-catalyzed reduction of aldehydes, ketones, carboxylic acids, and nitriles with borane–ammonia was extended to the reduction (deoxygenation) of a variety of aromatic and aliphatic pri-, sec- and tert ...
P. Veeraraghavan Ramachandran, Abdulkhaliq A. Alawaed, Aman Singh   +2 more
doaj   +1 more source

Understanding the multifaceted nature of peptide hydrogels in biomedical research

Academia Materials Science
Hydrogels are networks of three-dimensional cross-linked polymers, which possess the capacity to absorb and retain water. Hydrogels have proven to be adaptable and versatile, making them useful in various biomedical applications such as tissue
Srestha Ghosh, Shinjini Chaudhuri, Subhabrata Guha, Gaurav Das   +3 more
doaj   +1 more source

Septic encephalopathy: does inflammation drive the brain crazy?

Brazilian Journal of Psychiatry, 2014
Sepsis and the multiorgan dysfunction syndrome are among the most common reasons for admission to an intensive care unit, and are a leading cause of death.
Felipe Dal-Pizzol, Cristiane D. Tomasi, Cristiane Ritter   +2 more
doaj   +1 more source

Theoretical description of mixed film formation at the air/water interface : carboxylic acids–fatty amines

, 2020
Thermodynamic parameters of mixed monolayer formation of aliphatic amines CnH2n+1NH2 and carboxylic acids CnH2n+1COOH (n = 6–16) are calculated using the quantum chemical semiempirical PM3 method.
Fainerman, V., Kartashynska, E., Vollhardt, D., Vysotsky, Y., Zakharov, A.   +4 more
core   +1 more source