Results 41 to 50 of about 133,980 (384)

Guanidine Chemistry

Chemical and Pharmaceutical Bulletin, 2010
Guanidines are categorized as strong organobases; however, their catalytic utility in organic synthesis has not been discussed thoroughly. The author's group has extensively and systematically studied their potential ability focusing on: 1) modified guanidines as chiral auxiliaries; 2) guanidinium ylides for aziridine formation; 3) the affinity of ...
openaire   +3 more sources

Growth of complete ammonia oxidizers on guanidine

Nature
Guanidine is a chemically stable nitrogen compound that is excreted in human urine and is widely used in manufacturing of plastics, as a flame retardant and as a component of propellants, and is well known as a protein denaturant in biochemistry1–3 ...
M. Palatinszky, C. Herbold, C. Sedlacek, Dominic Pühringer, Katharina Kitzinger, Andrew T. Giguere, Kenneth Wasmund, P. Nielsen, M. Dueholm, N. Jehmlich, Richard Gruseck, Anton A. Legin, J. Kostan, N. Krasnići, Claudia Schreiner, Johanna Palmetzhofer, Thilo Hofmann, Michael T. Zumstein, Kristina Djinović-Carugo, H. Daims, Michael Wagner   +20 more
semanticscholar   +1 more source

SYNTHESIS, CHARACTERIZATION AND CRYSTAL STRUCTURE OF BIS-(2-HYDROXYBENZALDEHYDE)DIAMINOGUANIZONE [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2008
The new ligand, bis(2-hydroxybenzaldehyde)diaminoguanizone (1) has been synthesized and characterized by elemental analysis, IR and 1H NMR spectroscopies. The crystal structure of the compound was determined by X-ray diffraction.
Diana Dragancea, Vladimir B. Arion, Sergiu Shova, Vladimir B. Arion, Sergiu Shova   +2 more
doaj  

Direct air capture of CO2 – topological analysis of the experimental electron density (QTAIM) of the highly insoluble carbonate salt of a 2,6-pyridine-bis(iminoguanidine), (PyBIGH2)(CO3)(H2O)4

IUCrJ, 2019
Chemical bonding and all intermolecular interactions in the highly insoluble carbonate salt of a 2,6-pyridine-bis(iminoguanidine), (PyBIGH2)(CO3)(H2O)4, recently employed in the direct air capture of CO2 via crystallization, have been analyzed within the
Christopher G. Gianopoulos, Zhijie Chua, Vladimir V. Zhurov, Charles A. Seipp, Xiaoping Wang, Radu Custelcean, A. Alan Pinkerton   +6 more
doaj   +1 more source

A novel, resistance-linked ovine PrP variant and its equivalent mouse variant modulate the in vitro cell-free conversion of rPrP to PrPres [PDF]

, 2006
Prion diseases are associated with the conversion of the normal cellular prion protein, PrPc, to the abnormal, disease-associated form, PrPSc. This conversion can be mimicked in vitro by using a cell-free conversion assay. It has recently been shown that
Gill, Andrew C., Goldmann, Wilfred, Houston, Fiona, Kirby, Louise, Manson, Jean C.   +4 more
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Comparative in vitro Antibacterial Activity of Polyhexamethylene Guanidine Hydrochloride and Polyhexamethylene Guanidine Succinate

Антибиотики и Химиотерапия, 2020
Eye infection is one of the temporary invalidity causes that can lead to blindness. The former antibacterial components of eye drops were polyhexamethylene guanidine hydrochloride and polyhexamethylene guanidine phosphate.
Kam An Cha, N. E. Grammatikova, I. A. Vasilenko, S. A. Kedik   +3 more
doaj  

Eisenia foetida (Sav.) coelomic fluid protect human umbilical vein endothelial cells against metformin-induced cell toxicity

Trakya University Journal of Natural Sciences
The coelomic fluid of the red California earthworm Eisenia foetida (Sav.) includes a number of bioactive substances with antitumor and protective effects, thus making the fluid to also act as a defensive agent for the organism.
Yonca Yüzügüllü Karakuş, Özlem Aksoy, Elif Kale Bakır, Asuman Deveci Özkan   +3 more
doaj   +1 more source

Self-Assembled Lipoplexes of Short Interfering RNA (siRNA) Using Spermine-Based Fatty Acid Amide Guanidines: Effect on Gene Silencing Efficiency

Pharmaceutics, 2011
Four guanidine derivatives of N4,N9-diacylated spermine have been designed, synthesized, and characterized. These guanidine-containing cationic lipids bound siRNA and formed nanoparticles. Two cationic lipids with C18 unsaturated chains, N1,N12-diamidino-
Abdelkader A. Metwally, Ian S. Blagbrough   +1 more
doaj   +1 more source

Cyclic guanidines. VI. Synthesis of hypoglycemic tricyclic guanidines.

Chemical and Pharmaceutical Bulletin, 1979
Synthesis of linear and angular tricyclic guanidine derivatives, imidazo- or pyrimido-[2, 1-b]- or [1, 2-a] quinazoline derivatives, is described. Cyclization of 2-(ω-chloroalkyl)-4-phenyl-3, 4-dihydroquinazolines (9) gave two isomers and their isolation was troublesome.
A, Kosasayama, K, Higashi, F, Ishikawa
openaire   +3 more sources

Convulsant actions of 4-aminopyridine on the guinea-pig olfactory cortex slice [PDF]

, 1982
The effects of bath-applied 4-aminopyridine on neurones and extracellular potassium and calcium concentrations were recorded in slices of guinea-pig olfactory cortex. Neurones were orthodromically activated by stimulating the lateral olfactory tract.
Baranyi, Ben-Ari, Brismar, Brown, Buckle, Collins, Constanti, DiFrancesco, Dingemanse, Galvan, Galvan, Galvan, Gerrit Ten Bruggencate, Gilbey, Golenhofen, Halliwell, Heinemann, Jankowska, Jefferys, Kocsis, Lemeignan, Lipicky, Llinaś, Lundh, Martin Galvan, Matthews, McAfee, Mori, Neuman, Nicholson, Nicoll, Pelhate, Peter Grafe, Pichon, Scholfield, Scholfield, Schwartzkroin, Schwartzkroin, Sherratt, Shimahara, Spyker, Szente, Thesleff, Thompson, Ulbricht, von Haxthausen, Yanagisawa, Yeh   +47 more
core   +1 more source