Predictions of isobaric and Regge models are compared with the latest experimental data (Bonn, JLab) to select among the models those providing a satisfactory description of the data. Only the Saclay-Lyon (SLA) and MAID models are in a reasonable agreement with both photo-and electro-production data ranging up to about E lab γ = 2.5 GeV. In this energy region the Regge model is suitable only fo...

By taking advantage of the orthogonal nature of thiol-ene coupling and anhydride based esterification reactions, a facile and chemoselective strategy to dendritic macromolecules has been developed. The ability to interchange growth steps based on thiol-ene and anhydride chemistry allows the synthesis of fifth-generation dendrimers in only five steps and under benign reaction conditions. In addi...

A comparative study of the effect melt spinning on electrochemical properties C14 and C15 AB2 alloys has been performed. The wheel speeds 630, 2100, 4100 cm/s were applied during rapid solidification both alloys. structural analysis formed phases was performed by X-ray powder diffraction (XRD), while their microstructural morphology studied scanning electron microscopy (SEM). In a tremendous gr...

Carbon disulfide is an archetypal double-bonded molecule belonging to the class of group IV–group VI, AB2 compounds. It widely believed that, upon compression several GPa at room temperature and above, a polymeric chain type (−(C═S)–S−)n, named Bridgman’s black polymer, will form. By combining optical spectroscopy synchrotron X-ray diffraction data with ab initio simulations, we demonstrate tha...

Various effects on the room-temperature mechanical properties of TiCr2-base alloys have been assessed in efforts to improve the toughness of Laves phase intermetallics (AB2). Systematic studies were performed on: (i) single-phase stoichiometric and nonstoichiometric TiCr2, (ii) TiCr2-base ternary Laves phases, and (iii) two-phase binary alloys containing TiCr2. In order to make quantitative com...

Mixtures of anisotropic nanocrystals promise a great diversity of superlattices and phase behaviors beyond those of single-component systems. However, obtaining a colloidal shape alloy in which two different shapes are thermodynamically coassembled into a crystalline superlattice has remained a challenge. Here we present a joint experimental-computational investigation of two geometrically ubiq...

Water borne polyurethane (PU) based on newly prepared hyperbranched poly (amine-ester) (HBPAE) was applied and evaluated as organic coating material. HBPAE was prepared through one-pot synthesis between trimethylol propane as a core and AB2 branched monomer which was obtained via Michal addition of methyl methacrylate (MMA) and diethanol amine (DEA). PU was prepared from HBPAE using different r...

Relative equilibria of molecules are classical trajectories corresponding to steady rotations about stationary axes during which the shape of the molecule does not change. They can be used to explain and predict features of quantum spectra at high values of the total angular momentum J in much the same way that absolute equilibria are used at low J. This paper gives a classi® cation of the symm...

Reagents. Thioglycolic acid (TGA), Bovine serum albumin (BSA), imidazole, N-(3dimethylaminopropyl)-N’-ethyl-carbodiimide hydrochloride (EDC), Nhydroxysuccinimide (NHS), (+)-Biotin N-hydroxysuccinimide were purchased from Sigma-Aldrich. EDC and NHS were dissolved in water immediately before use. Human prostate-specific antigen (PSA), two mouse antihuman total PSA monoclonal antibodies (primary c...

A cheap and portable electrochemical immunosensor based on the silver-enhanced colloidal gold electrochemical stripping technique and gold nanoclusters (AuNCs) labels was proposed for the detection of human IgG. Inspired by adhesive proteins that secreted by marine mussels, the stable and robust film-poly (dopamine) was used to immobilize biomolecules (Ab1) on an indium tin oxide (ITO) electrod...