Results 191 to 200 of about 56,931 (242)

Pretreatment of Miscanthus stalk with organic alkali guanidine and amino-guanidine

Bioresource Technology, 2015
Organic alkali guanidine and amino-guanidine were used as catalysts to pretreat Miscanthus stalks. The effects of catalyst loadings, pretreatment temperature and time, on pretreatment results were studied. Between guanidines and amino-guanidines, guanidines were of benefit to produce hexose and amino-guanidines were in favor of producing pentose in ...
Xiaoli Zhao
exaly   +3 more sources

Guanidine Derivatives in Medicine

New England Journal of Medicine, 1973
FIFTY years have passed since the introduction of insulin into medicine. It is not widely known that guanidine derivatives were first used in the therapy of diabetes at about the same time, and that the effects of guanidine in a biologic system were first described nearly 100 years ago.1 Over the years, a wide variety of guanidine derivatives have ...
Philip R. Steinmetz, Christine Balko, Frank Davidoff   +2 more
openaire   +2 more sources

Natural guanidine derivatives

Natural Product Reports, 1996
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +3 more sources

ChemInform Abstract: The Coordination Chemistry of Guanidines and Guanidinates

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Philip J. Bailey, Stuart Pace
openaire   +1 more source

Antiviral Effect of Guanidine

Science, 1961
It has been found that soluble guanidine salts show an antiviral effect on poliovirus and on some other enteroviruses. The activity was first detected in a cell culture screening system when the guanidine salt of hydroxyaminomethylene malononitrile inhibited the cytopathic effect of poliovirus in cell cultures.
W A, RIGHTSEL, J R, DICE, R J, McALPINE, E A, TIMM, I W, McLEAN, G J, DIXON, F M, SCHABEL   +6 more
openaire   +2 more sources

Guanidination of horse methemoglobin

Archives of Biochemistry and Biophysics, 1977
Abstract Reaction of horse methemoglobin with O -methylisourea at pH 10.2 results in 95% conversion of lysine residues to homoarginine. Analysis of the chymotryptic peptides showed that no single ϵ-amino group was unreactive. Guanidination decreases the dependence of the sedimentation coefficient on hydrogen ion concentration in the range of pH 8 to
J D, Sakura, J A, Rupley
openaire   +2 more sources

Guanidine throws the riboswitch

Science Signaling, 2017
A bacterial riboswitch responds to endogenously produced guanidine.
openaire   +2 more sources

[51] Guanidination of proteins

1972
Publisher Summary This chapter presents data on the use of 1-Guanyl-3,5-dimethylpyrazole nitrate (GDMP) for guanidinating various proteins and, wherever possible, compares the results with those obtained with O-methylisourea (MIU). GDMP exists as colorless prisms, mp 166-168°.
openaire   +2 more sources

X-Ray and Infrared Data on Hectorite-Guanidines and Montmorillonite-Guanidines

Clays and clay minerals (National Conference on Clays and Clay Minerals), 1959
AbstractClay-organic complexes of the clay minerals sodium hectorite and sodium montmorillonite with the hydrochlorides of guanidine, amino-guanidine, methylguanidine, and triamino-guanidine were examined for thermal stability by the oscillating-heating x-ray technique. Completely exchanged complexes increase the thermal stability of these two clays by
CARL W. BECK, GEORGE BRUNTON
openaire   +1 more source

Characterization of guanidine carboxylases

Guanidine metabolism has been an overlooked aspect of the global nitrogen cycle until RNA sensors (riboswitches) were discovered in bacteria that bind the nitrogen-rich compound. The associated genes were initially proposed to detoxify guanidine from the cells.
M, Sinn, J, Techel, A, Joachimi, J S, Hartig   +3 more
openaire   +2 more sources