Two-dimensional inorganic nanomaterials have drawnmuch attention due to their excellent properties and wide applications associated with unique 2D structures. However, an efficient and versatile chemical synthesis method using ambient conditions for 2D nanomaterials, especially with secondary structures (e.g. mesopores), has still not been reported. Herein, we report a versatile method to synth...

Recombination frequencies among temperature-sensitive dna mutants from various laboratories were analyzed, and eleven dna mutants were found to be closely linked. They are classified as group B dna mutants, since these are closely linked with dnaB19, originally isolated and approximately mapped near leuA8 by KARAMATA and GROSS (1970). However, the dnaB19 mutation itself has relatively high reco...

Ion mobility studies and density functional theory calculations were used to study the structures of [Zn/diethylenetriamine/Hexose/Cl]+ complexes in an effort to probe differences in the three-dimensional conformations. This information allows us to gain insight into the structure of these complexes before collisional activation, which is the first step in understanding the stereoselective diss...

Oxalato-bridged divalent homometallic compounds A(2)[M(II)(2)(C(2)O(4))(3)] (M(II) = Fe(2+) (1), Co(2+) (2)) were obtained by a solvothermal method. They consist of honeycomb anions and cations, that is, the 5-oxo-1,4,7-triazabicyclo[4.3.0]non-6-en-7-yl ammonium ion (hereafter abbreviated as A(1)) in 1 and the 2-(2,3-dioxo-1-piperazinyl)eth-1-yl ammonium ion (hereafter abbreviated as A(2)) in 2...

A series of zeolite-type silicates containing stoichiometric amounts of Ln(3+) ions in the framework (Ln-AV-9 materials), with composition (Na(4)K(2))(Ln(2)Si(16)O(38)).10H(2)O (Ln = Nd, Sm, Eu, Tb, Gd, Dy) has recently been synthesized and characterized. They form paramagnetic microparticles, which as aqueous suspensions have negligible water (1)H longitudinal relaxivities (r(1)) for all Ln(3+...

The synthesis of a series of octadentate ligands containing the 1-hydroxypyridin-2-one (1,2-HOPO) group in complex with europium(III) is reported. Within this series, the central bridge connecting two diethylenetriamine units linked to two 1,2-HOPO chromophores at the extremities (5-LIN-1,2-HOPO) is varied from a short ethylene chain (H(2,2)-1,2-HOPO) to a long pentaethylene oxide chain (H(17O5...

We examined the effects of a paramagnetic contrast agent, gadolinium diethylenetriamine pentaacetic acid (Gd-DTPA) on magnetic resonance images of acute myocardial infarction with and without reperfusion. Twenty-two dogs underwent occlusion of the left anterior descending coronary artery (LAD). In 10 dogs (group I) the LAD remained occluded for 3 hr and in the other 12 (group II) for 2 hr follo...

A series of new manganese thioarsenates(V) [Mn(en)2Cu(AsVS4)]n (1, en = ethylenediamine), [Mn(dien)2][Mn(dien)(AsVS4)]2 (2, dien = diethylenetriamine), [Mn(teta)(AsVS4)]n (3, teta = triethylenetetramine), and {[Mn(dap)2][Mn(dap)(AsVS4)]2}n (4, dap = 1,2-diaminopropane) have been solvothermally synthesized and structurally characterized. 1 displays a neutral heterometallic [Mn(en)2Cu(AsVS4)]n ch...

Ethylenediamine (en), putrescine (pu), diethylenetriamine (dien), dipropylenetriamine (dpta), spermidine (spmd) and their Cu(II) compounds as well as the Schiff bases with 2-furaldehyde (dienOO), 2- thiophenecarboxaldehyde (dienSS) and pyrrole-2-carboxaldehyde (dienNN) of dien and that of dpta with 2- thiophenecarboxaldehyde (dptaSS), were prepared and characterised. They were tested against Ba...

This study investigated the effect of exogenous nitric oxide (NO) on endothelial glucocorticoid receptor (GR) function. The NO donor diethylenetriamine NONOate (DETA, 50-500microM) caused concentration dependent nuclear localization of transfected chimeric green fluorescent protein GFP-GR and elevated expression of secreted alkaline phosphatase (SEAP) from a glucocorticoid response element (GRE...