the electrocatalysis of the oxygen reduction reaction (orr) on carbon supportedpt-v (1:1) catalyst in polymer electrolyte fuel cells (pefc) was investigated. atan oxygen pressure of one atm an enhanced electrocatalytic property of pt-v/ccompared with pt/c is revealed. these results indicate the occurrence of adifferent electrocatalytic mechanism for the orr on pt/c and pt-v/c. anincrease of mas...

Abstract Membrane emulsification is a promising new technique that can be deployed as scalable modular conduit for the consistent and continuous production of single complex emulsions. This work reports on development manufacturing platform based membrane first time microcapsule-based self-healing cementitious materials. The feasibility double emulsion with wall formation secondary step through...

Direct liquid fuel cells (DLFCs) are proposed to address the problems of high cost and complex storage transportation hydrogen in traditional hydrogen–oxygen proton exchange membrane cells. However, present fuels organic small molecules used DLFCs restricted sluggish electrochemical kinetics easily poisoning precious metal catalysts. Herein, we demonstrate reduced phosphotungstic acid as a for ...

Cell-penetrating peptides (CPPs) have been attracting attention as tools for intracellular delivery of membrane-impermeant functional molecules. Among the variety CPPs that developed, many are composed both natural and unnatural amino acids. We previously synthesized α,α-disubstituted α-amino acids (dAAs) containing a five-membered carbocyclic ring in its side chain revealed utility dAAs develo...

To obtain insights into dynamics of spectrin dimer-dimer interaction in intact red cell membrane, we measured mechanical stability of resealed ghosts following reconstitution with functional alpha-and beta-spectrin recombinant protein fragments that can associate with intact dimers. We have been able to document that incorporation of increasing concentrations of either the alpha-or beta-spectri...

The cell membrane forms a dynamic and complex barrier between the living cell and its environment. However, its in vivo studies are difficult because it consists of a high variety of lipids and proteins and is continuously reorganized by the cell. Therefore, membrane model systems with precisely controlled composition are used to investigate fundamental interactions of membrane components under...

Polyvinyl chloride supported silver molybdate composite material is used to develop by solution casting method. This membrane was characterized by various instrumental techniques such as Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) analyses. These characterizations are used to understand the functional groups,thermal sta...

to investigate the effect of salinity stress on membrane stability index, membrane lipid peroxidation, catalase activity and protein content of fenugreek (trigonellafoenum) an experiment with five levels of short-term salinity stress (0, 50, 100, 150 and 200 mm) was carried out at the laboratory of agriculture faculty of shahid bahonar university of kerman, iran. the treatments were arranged ba...