We systematically construct gauge-mediated supersymmetry(SUSY)-breaking models with direct transmission of SUSY-breaking effects to the standard-model sector. We obtain a natural model with the gravitino mass m 3/2 smaller than 1 keV as required from the standard cosmology. If all Yukawa coupling constants are of order one, the SUSY-breaking scale m SU SY transmitted into the standard-model sec...

The transport properties of various anion and cation exchange membranes were studied in different electrolyte solutions using chronopotentiometry technique to get insight about the influence of the counter ion on the transport properties of the membranes. The investigated samples include heterogeneous ion exchange membranes varying in the functionality of fixed charged gro...

Positive DC (direct current) potentials were measured in the extracellular space in the retinal neuroepithelium of chick embryos. The positive DC potential was suppressed by amiloride, a blocker for epithelial Na(+) channels (ENaC). Amiloride also decreased the resistance of the extracellular space as measured by passing a constant current through a microelectrode. The positive DC potential is ...

The electrochemical reduction of allyl chloride is strongly catalyzed in the presence of cobalt complexes of 2,2'-bipyridine. A prominent reaction product of the catalyzed reduction is 1,5-hexadiene. Voltammetry, coulometry, and gas chromatographic data are presented and analyzed and a mechanistic scheme proposed to. account for the catalytic action of the cobalt-2,2'-bipyridine complexes. Rece...

Protein function is intrinsically related to structure and dynamic. Solution pH often has a dramatic impact on protein systems, since pH can affect the charge distribution within these biomolecules.[1] Understanding how pH-dependent conformation changes take place is key to the development of drugs targeting pH sensors, to the success of computational drug discovery strategies, and so forth.[2]...

Silver nanoparticles (AgNPs) are widely used in industrial and consumer products owing to its antimicrobial nature multiple applications. Consequently, their release into the environment is becoming a big concern because of negative impacts on living organisms. In this work, AgNPs were detected at potential + 0.70 V vs. Ag/AgCl reference electrode, characterized, quantified by particle collisio...

A scalable and rather inexpensive solution to producing microanalytical systems with "on-chip" three-dimensional (3D) microelectrodes is presented in this study, along with applicability to practical electrochemical (EC) detection scenarios such as preconcentration and interferant removal. This technique to create high-aspect-ratio (as much as 4:1) gold microstructures in constrained areas invo...