Most electrochemical sensing requires affordable, portable and easy-to-use devices for use in point-of-care testing resource-limited settings. This work presents the design evaluates analytical performance of a near-field communication (NFC) potentiostat, flat card-sized device containing microchip electrical analysis an NFC antenna smartphone connection. The interface is wireless connection be...

Conventional electrochemical sensor electrodes have poor electrical conductivity due to their large surface impedance. Therefore, sensing of carbon-coated metal oxide nanoparticles is proposed. Based on the experimental preparation, preparation Fe304@C and sensors required for experiment were completed by using chemicals reaction instruments. The Fe304@C/SPEs studied tested in a three-level sys...

a feasible and fast method to fabricate hydrogen peroxide sensor was investigated by graphene-manganase nanocomposite carbone paste electrode. in the present work, in first step, the graphene was synthesized by chemical method and in second step, manganese oxide nanoparticle was doped on graphene. graphene-manganase nanocomposite was characterized by ftir and sem. the nanocomposite shows a high...

A novel electrochemically controlled release method for nitric oxide (NO) (based on electrochemical reduction of nitrite ions) is combined with an amperometric oxygen sensor within a dual lumen catheter configuration for the continuous in vivo sensing of the partial pressure of oxygen (PO2) in blood. The on-demand electrochemical NO generation/release method is shown to be fully compatible with...

This study presents the first electrochemical characterization of the pyranose oxidase (POx) variant N593C (herein called POx-C), which is considered a promising candidate for future glucose-sensing applications. The resulting cyclic voltammograms obtained in the presence of various concentrations of glucose and mediator (1,4-benzoquinone, BQ), as well as the control experiments by addition of ...