Cobalt oxide [Co3O4] anode materials were synthesized by a simple hydrothermal process, and the reaction conditions were optimized to provide good electrochemical properties. The effect of various synthetic reaction and heat treatment conditions on the structure and electrochemical properties of Co3O4 powder was also studied. Physical characterizations of Co3O4 are investigated by X-ray diffrac...

This article summarizes the application of fluorescent sensors to in vitro diagnostic systems measuring critical care analytes in whole blood. We discuss recent advances in fluorescent chemosensor technologies employing fluorescence indicators used for this application. This paper touches on key materials, structure–property relations, and design considerations for maximum utility in low-cost p...

to 0.33 S cm, a necessary property for electrochemical applications, while a mesoporous structure reduces mass transport limitations. These characteristics are further combined with a high N content (3.55 – 5.45 wt.%). As a result, the as-prepared materials exhibit an enhanced intrinsic electrocatalytic activity towards the oxygen reduction reaction (ORR). They exhibit an onset potential of ~ -...

The rate ofunidirectional efflux of45Ca from rat liver microsomal vesicles loaded with 45Ca and then treated with thapsigargin is not inhibited by increased [Ca2+] in the external medium, although the net efflux rate is substantially inhibited. We have used this property to measure the electrochemical gradient of Ca2+ from the inside to the outside of the vesicles at a series of Ca2+ loadings, ...