The acidochromism and acid–base properties of 2,6-distyrylpyridine (2,6-DStP) derivatives bearing on the sides push/pull substituents (namely two dimethylamino, one nitro, and one methoxy and two nitro groups in the case of 2,6-bis[(E)-2-(4-dimetylaminophenyl)ethenyl]pyridine, 2-[(...
Chemicals can be added to the system to modify the rate of cement hydration; for example, sugars retard it and salts such as calcium chloride accelerate it (see Cement and Concrete Admixtures, below). Of the non-Portland cements used in building, the most important is high-alumina cement (...
(1928), Influence of neutral salts on acid-base equilibria: V. The first and second dissociation constant of succinic acid, tartaric acid and adipinic acid, and the influence of neutral salts on the pH of a mixture of the acid and its acid salt, and the acid salt and normal salt ...
R. In vitro antibacterial activity of unconjugated and conjugated bile salts on Staphylococcus aureus. Front. Microbiol. 8, 1581 (2017). Article PubMed PubMed Central Google Scholar Hofmann, A. F. The continuing importance of bile acids in liver and intestinal disease. Arch. Intern. Med. ...
was added to the chamber to study ternary nucleation and the role of acid-base clustering and nano-particle growth. To capture atmospherically relevant conditions, the amine concentration was kept several orders of magnitude lower than the concentrations used in previous laboratory studies16,18. The ...
17 Acid and Base 3 P roblem s w ith A rrhenius theory Like D alton’s atom ic theory, A rrhenius theory have problem s today: A cidity did not show in other solvent. W hat is the solvent role? S om e salts produce acidic or basic solutions, not neutral. W hy? W hich is...
The qualitative amino acid composition of the peptidoglycan, in particular the diagnostic diamino acid, is of high taxonomic relevance and allows in combination with 16S rRNA gene sequence data the tentative affiliation of a strain to a genus. The identification of the diamino acids l-lysine, l-...
Acid-Base Interactions: Relevance to Adhesion Science and Technology, K. L. Mittal and H. R. Anderson Jr., eds. Utrecht, The Netherlands, Tokyo, Japan, 1991. Google Scholar Surface Chemistry and Adsorption: Experimental Methods in Adsorption and Molecular Chromatography (Khimia Poverkhnosti i ...
These inhibit gene expression at both mRNA and protein levels through Watson–Crick base pairing (Mergny et al., 1992). AON shows potential advantages as a therapeutic agent against diseases with fundamental genetic components, such as viral infections and cancer. But like siRNA, they s...
this assay enables accurate RNA quantitation even in the presence of an equal mass of DNA. The fluorescence signal is unaffected by many common contaminants, including free nucleotides, salts, solvents and proteins, making this assay ideal...