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Screen-printed amperometric biosensors for glucose and alcohols based on ruthenium-dispersed carbon inks

✍ Scribed by Joseph Wang; Qiang Chen; María Pedrero; JoséM. Pingarrón

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 495 KB
Volume: 300
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(94)00357-r

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✦ Synopsis

A ruthenium-dispersed carbon ink is used for the fabrication of screen-printed enzyme electrodes. The dispersed ruthenium particles offer an efficient electrocatalytic action towards the detection of enzymatically-liberated peroxide and dihydronicotinamide adenine dinucleotide (NADH) . Highly selective biosensing of glucose is accomplished at a potential region (0.0 to + 0.2 V) where interfering reactions are minimized. Similarly, the metallized strip surface (with co-immobilized alcohol dehydrogenase and NAD+) facilitates the low-potential biosensing of ethanol without the assistance of redox mediators.

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