We report the first experimental determination of the electron affinity of gallium. The experiment was performed using the laser photodetachment electron spectrometry technique. Photoelectron kinetic energy spectra from Cu− and O− were used to calibrate the energy scale for the Ga− photoelectron energy spectra. The electron affinity was determined to be 0.43±0.03 eV. This measurement is compare...

the efficacy of activation methods and coupling were studied in the context of performance in batch and fixed bed binding experiments utilizing cell culture fluids or blood plasma as feedstock. conclusions were drawn regarding selection of solid phase according to pore size, rigidity, ph stability, chemistry of derivation and activation, and gross concentration of immobilized ligand required fo...

Low work function materials are desirable in many applications such as electron emission and photocatalysis. We have studied low energy from hydrogen terminated diamond surfaces via spectroscopy to gain insight into the mechanisms involved during excitation emission. Electron was found be dominated by electrons within band gap region, allowed due negative affinity surface, while sub-bandgap ill...

Despite the importance of transfer cells in enhancing nutrient transport in plants, little is known about how deposition of the complex morphology of their wall ingrowths is regulated. We probed thin sections of mature cotyledon epidermal transfer cells of Vicia faba with affinity probes and antibodies specific to polysaccharides and glycoproteins, to determine the distribution of these compone...

Inorganic polyphosphate (poly P) is a linear polymer of orthophosphate and has many biological functions in prokaryotic and eukaryotic organisms. To investigate poly P localization, we developed a novel technique using the affinity of the recombinant polyphosphate binding domain (PPBD) of Escherichia coli exopolyphosphatase to poly P. An epitope-tagged PPBD was expressed and purified from E. co...

AIM Lupus nephritis is closely associated with in vivo autoantibody-binding to glomerular membrane-associated electron-dense structures (EDS). The biochemical nature and cellular origin of EDS are controversial, and definitive characterisation needs to be performed. METHODS By using the terminal transferase biotin-dUTP nick end-labelling (TUNEL) assay at the electron microscopic level, we hav...

The adsorption of molecular acceptors is a viable method for tuning the work function of metal electrodes. This, in turn, enables adjusting charge injection barriers between the electrode and organic semiconductors. Here, we demonstrate the potential of pyrene-tetraone (PyT) and its derivatives dibromopyrene-tetraone (Br-PyT) and dinitropyrene-tetraone (NO2-PyT) for modifying the electronic pro...

A pure iodine plasma is generated by a cylindric arc at 1 atm and 6 to 30 amps within a quartz tube of 8 mm diameter. The radiation emitted along the arc axis was measured absolutely in the wavelength range from 0.2 —\.9 fx. In the uv-region it consists mainly of the affinity continuum due to transitions of free electrons to the ground level of the negative iodine ions. The first threshold of t...

in this research at the first, xylometazoline hydrochloride drug (xy) and its fullerene connected form (fxy) were optimized. natural bond orbital (nbo) calculations for these compounds were carried out at the b3lyp/6-31g* quantum chemistry level, in the gas phase and the liquid phase. these calculations can be performed at different accuracy levels depending on the aim of the theoretical study....

A new readily synthesized fluorescent chemosensor, calix[1]pyreno[3]pyrrole, displays excellent affinity with C(70). Anion-induced facile conformational changes and the dynamic nature of the receptor could be an excellent scaffold for sensing electron-deficient guests.