Glucose Sensor Based on Ubiquinone-Modified Carbon Paste Electrode

Kawakami, Mitsuyasu; Uriuda, Noboru; Koya, Hidekazu; Gondo, Shinichiro

doi:10.1080/00032719508002764

Cited by 6 publications

(2 citation statements)

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“…The use of UQ electrochemistry in the development and understanding of bioelectrochemistry systems including UQ operating as a redox mediator within enzyme electrodes was explored by Kawakami et al, who described an enzyme electrode with UQ as a mediator for glucose sensing in phosphate-buffered saline solution. [56] A paste mixture of graphite powder, liquid paraffin, UQ and glucose oxidase was prepared and mounted onto a graphite working electrode. [56] In this study, UQ was assessed for use as a mediator to transfer electrons between the enzyme and the carbon electrode material.…”

Section: Biosensingmentioning

confidence: 99%

“…[ 56 ] A paste mixture of graphite powder, liquid paraffin, UQ and glucose oxidase was prepared and mounted onto a graphite working electrode. [ 56 ] In this study, UQ was assessed for use as a mediator to transfer electrons between the enzyme and the carbon electrode material. From the results presented, mediation with UQ was deemed less efficient compared to other redox mediators such as benzoquinone or ferrocene derivatives.…”

Section: Analytical Applications Of Uq Electrochemistrymentioning

confidence: 99%

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Ubiquinone electrochemistry in analysis and sensing

Conghaile

Arrigan

2022

Electrochemical Science Adv

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Ubiquinone (UQ) is a lipophilic compound present in most living organisms, where UQ's interesting but complex electrochemistry serves an important role in the transfer of electrons and protons within and across the mitochondrial membrane. We briefly review the electrochemical characteristics of UQ and its reduced state, ubiquinol, in solution and immobilized on electrodes, together with its application in electrochemical sensing and detection systems, for example, measuring redox status with reference to reactive oxidative species. The importance of the local environment, solvent, electrolyte, organic membrane, and pH, on the electrochemical behavior of UQ, is also discussed. We discuss techniques used for the direct detection of UQ such as liquid chromatographyelectrochemistry. Mediated electrochemistry of UQ allows for quantitative measurements of ions, small molecules, and other analytes such as glucose via chemical sensors and biosensors.

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Section: Biosensingmentioning

confidence: 99%

Section: Analytical Applications Of Uq Electrochemistrymentioning

confidence: 99%