Imidazole-zinc reverse stain utilizing imidazole and zinc ions for protein visualization on electrophoresis gels was originally introduced in the 1990s (1–3). This method is based on the selective precipitation of imidazolate-zinc complex in the gel (3), except zones where proteins or other macromolecules, such as DNA (4–7) or lipopolysaccharide, are present (4,5,8,9). There are several advanta...

Thermodynamic data for the proton and metal ion complexation equilibria of imidazole ( 1,3 diazole, glyoxaline ) and histamine ( 4-imidoazolethylamine, 4 ( 2’ aminoethyl ) imidazole ) have been collected and critically evaluated. The literature search has been performed by using IUPAC’s “Stability Constants Database” and covers the literature until 1992. Important criteria for acceptance compri...

Imidazole is reported to be an effective reactant for the production of nanocellulose from hardwood pulp. The morphologies and surface properties of the nanocellulose can be simply tailored according to the water content in the imidazole system: with pure imidazole, cellulose nanofibrils (CNFs) in a yield of 10 wt % can be produced. With 25 wt % of water in imidazole, cellulose nanocrystals (CN...

By reaction of a 1-unsubstituted imidazole (imH) with alkali and R 3'PAuC1 under phase trans­ fer conditions or in M eO H solution R3'PAu (im-./V) compounds were obtained where R' = C6H n or r-Bu, and imH was imidazole, 2-/-Pr-, 4 -N 0 2-imidazole or benzimidazole. When the Ph,Sb (or Ph3As) hom ologue was reacted, polymeric [u-(2-methylimidazolato-Ar,/V')gold(I)]„ was obtained, together with (P...

Series of 4-arylimidazoles, omega-N-acylhistamines and 4-(omega-phenylalkyl)imidazoles were synthesized in order to probe the active site topology of sweet almond beta-glucosidase. These imidazole derivatives were shown to be very powerful competitive inhibitors. Among the 20 tested compounds, omega-N-benzoylhistamine and 4-(3'-phenylpropyl)imidazole are the most potent inhibitors of the enzyme...

The Cambridge Structural Database was mined for non N-substituted, neutral imidazole derivatives. Solid states with metal centres bound to the imidazole nitrogen atoms and ionic species were not included. The N–N, hydrogen-bound, tape motif was found to be a structural trend in the solid-state of neutral imidazole derivatives in the presence of possible competing hydrogen bonds and in highly st...

A nonlinear optical chromophore, 4,5-bis(4-dimethylaminophenyl)-2-(4-nitrophenyl)imidazole, was investigated by X-ray crystallography. The study focused on coplanarity among several aromatic rings, including phenyls and imidazole. Two phenyl rings with NMe2 groups are twisted by 46.39(3) degrees from each other. However, they are twisted by 23.05(5) degrees and 46.84(3) degrees from the imidazo...

The imidazole-Ag(I)-imidazole base pair is one of the best-investigated artificial metal-mediated base pairs. We show here that its stability can be further improved by formally replacing the imidazole moiety by a 2-methylimidazole or 4-methylimidazole moiety. A comparison of the thermal stability of several double helices shows that the addition of one equivalent of Ag(I) leads to a 50% larger...

New imidazole derived thiosemicarbazones and hydrazones were prepared by condensation of 4(5)-imidazole carboxaldehyde, 4-(1H-imidazole-1-yl)benzaldehyde and 4-(1H-imidazole-1-yl)acetophenone with a thiosemicarbazide or hydrazide. All compounds were characterized by quantitative elemental analysis, IR and NMR techniques. Eight structures were determined by single crystal X-ray diffraction. The ...