This paper investigates electrochemical double layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWFCNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working v...

Only recently have we been satisfied with the data obtained from recording the pH of luminal contents within the duodenal bulb in situ. The improvement in technique consisted of concurrent recording of antral and duodenal transmucosal potential differences so that the site of the electrode could be determined without fluoroscopy (Archambault, Rovelstad, and Carlson, 1967). A logical application...

Urease has been covalently immobilized on polypyrrole microspheres chemically linked to conducting polypyrrole-polyvinyl sulfonate (PPY-PVS) films. These films were electrochemically prepared during 5 7 min at a constant current of 2 mA using indium tin oxide (ITO) glass plates as the working electrode, and a standard calomel electrode as the reference electrode. Urease covalently linked to pol...

Glass insulated carbon-fiber microelectrodes (CFMEs) are standard tools for the measurement of neurotransmitters. However, electrodes are fabricated individually and the glass can shatter, limiting application in higher order mammals. Here, we developed a novel microelectrode batch fabrication method using a 3D-printed mold and polyimide resin insulating agent. The 3D-printed mold is low cost, ...

The applicatlon of scannlng electrochemical microscopy (SECM) in the feedback mode to two-dknenslonai scans over conductlve and insuiatlng substrates to obtain topographic information at the micrometer-level Is descrlbed. I n the feedback mode the effect of the conductlvlty of the substrate and dlstance of the substrate from a scanning ultramicroelectrode tlp on the current flowing at the tip c...

Electrochemical behavior of a new class of glass-polymer composites (GPC), consisting of (100-x) ~01% (0.56LizS~0.19B~S,.0.25LiI) glass and x ~01% (P(E0)6.LiN(CF$O&) polymer with x = 7, 13 and 25, has been investigated in cells with different electrodes. Results show that the addition of the polymer to the glass powder increases not only the mechanical flexibility but also the ionic conductivit...

In electroanalytical measurements, nanoporous glass plugs are widely used to contain the electrolyte solution that forms a salt bridge between the sample and the reference electrode. Even though reference electrodes with plugs made of nanoporous glass (such as Vycor or CoralPor glass) are commercially available and are frequently used, the limits of their use have not been explored thoroughly. ...