Reticulated vitreous carbon electrode materials chemically modified with immobilized enzyme

Wieck, Henry J.; Shea, Catherine; Yacynych, A.M.

doi:10.1016/s0003-2670(01)95289-4

Cited by 24 publications

(10 citation statements)

References 7 publications

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“…The reproducibility of the activity assays in this study (7% relative standard deviation) is indicative of the properties of covalently attached rather than adsorbed enzymes. This property has also been observed for glucose oxidase attached to chemically modified reticulated vitreous carbon (15). In a previous study, the adsorption of xanthine oxidase on graphite electrodes was proved to be negligible when compared to the amount of covalently attached enzyme when the proper washing procedure was used (i.e., 1 M NaCl) (16).…”

Section: Resultssupporting

confidence: 58%

Immobilized xanthine oxidase chemically modified electrode as a dual analytical sensor

Ianniello¹,

Lindsay²,

Yacynych³

1982

Anal. Chem.

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Section: Resultssupporting

confidence: 58%

Immobilized xanthine oxidase chemically modified electrode as a dual analytical sensor

Ianniello¹,

Lindsay²,

Yacynych³

1982

Anal. Chem.

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“…Wieck et al [32] attached glucose oxidase to a 80 ppi RVC cylinder, both covalently and by adsorption in a flow-through configuration. Their findings suggested that covalent attachment resulted in higher activity for glucose detection.…”

Section: Electroanalytical Studies and Sensorsmentioning

confidence: 99%

Reticulated vitreous carbon as an electrode material

Friedrich

Ponce-de-León

Reade³

et al. 2004

Journal of Electroanalytical Chemistry

324

185

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An illustrated review of reticulated vitreous carbon (RVC) as an electrode material is presented. Early uses of RVC were largely restricted to small-scale (< 1 cm 3 ) electroanalytical studies in research laboratories. RVC properties of a high ratio of surface area to volume and minimal reactivity over a wide range of process conditions, combined with low cost and easy handling, have resulted in a steady diversification of its applications both in research laboratories and in industry. The physical structure of RVC (in terms of pores per linear inch, strut length, strut thickness and area of the trigonal strut) is examined for 10, 30, 60 and 100 ppi (pores per linear inch) grades using scanning electron microscopy. The accurate measurement of these geometrical values presents both theoretical (in terms of definition of trigonal strut area, beginning and end of single strand) and practical problems (large differences in strut length and thickness in individual samples). Data are presented to show the relationships between geometrical properties. Applications include electroanalytical studies and sensors, metal ion removal, synthesis of organics and FentonÕs reagent, H 2 O 2 production and batteries/fuel cells.

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“…Glucose oxidase (GOx) is an example of an enzyme used in such devices (6)(7)(8)(9)(10)(11)(12)(13)(14) for the determination of glucose in aqueous and biological media. The overall reaction of GOx with the electrode involves the catalyzed oxidation of glucose by GOx, glucose S-glucose + Oo-* S-gluconic acid + H202 (1) oxidase followed by the amperometric determination of H202 by electrochemical oxidation at 0.8 V vs. SCE,…”

mentioning

confidence: 99%