Analytical Performance of a Glucose Biosensor Prepared by Immobilization of Glucose Oxidase and Different Metals into a Carbon Paste Electrode

Miscoria, Silvia A.; Barrera, Gustavo D.; Rivas, Gustavo A.

doi:10.1002/1521-4109(200208)14:14<981::aid-elan981>3.0.co;2-1

Cited by 62 publications

(35 citation statements)

References 10 publications

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“…Addition of catalytic Pt and Pd nanoparticles can increase the glucose biosensor's sensitivity; however, these noble metals have also been shown to catalyze redox reactions of common electroactive interfering substances, such as ascorbic acid (AA) and uric acid (UA). 20 In addition, Wang, et al reported that the permselective properties of Nafion are not sufficient to fully eliminate anionic interferences, especially at high potential. 8 For these reasons, the interfering effects of 0.1 mM ascorbic acid and 0.2 mM uric acid compared to 4 mM glucose (the average physiological concentration of blood glucose 37 ) were evaluated on the PtϪxGnP glucose biosensor at the potential of ϩ0.7 mV.…”

Section: Resultsmentioning

confidence: 99%

“…16 For example, platinum (Pt) and palladium (Pd) nanoparticles are especially effective at H 2 O 2 oxidation and reduction. 20 In addition, metal nanoparticles could even provide electrochemical reversibility for redox reactions, which is not possible on the bulk metal electrode. 21 Hrapovic et al simply mixed a Pt nanoparticle suspension with single-walled carbon nanotubes (SWCNTs) Nafion suspension to create a glucose biosensor.…”

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confidence: 99%

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Nanometal-Decorated Exfoliated Graphite Nanoplatelet Based Glucose Biosensors with High Sensitivity and Fast Response

et al. 2008

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We report the novel fabrication of a highly sensitive, selective, fast responding, and affordable amperometric glucose biosensor using exfoliated graphite nanoplatelets (xGnPs) decorated with Pt and Pd nanoparticles. Nafion was used to solublize metal-decorated graphite nanoplatelets, and a simple cast method with high content organic solvent (85 wt %) was used to prepare the biosensors. The addition of precious metal nanoparticles such as platinum (Pt) and palladium (Pd) to xGnP increased the electroactive area of the electrode and substantially decreased the overpotential in the detection of hydrogen peroxide. The Pt−xGnP glucose biosensor had a sensitivity of 61.5 ± 0.6 μA/(mM·cm2) and gave a linear response up to 20 mM. The response time and detection limit (S/N = 3) were determined to be 2 s and 1 μM, respectively. Therefore, this novel glucose biosensor based on the Pt nanoparticle coated xGnP is among the best reported to date in both sensing performance and production cost. In addition, the effects of metal nanoparticle loading and the particle size on the biosensor performance were systematically investigated.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Nanometal-Decorated Exfoliated Graphite Nanoplatelet Based Glucose Biosensors with High Sensitivity and Fast Response

et al. 2008

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“…Pt is a good candidate because of its efficient interaction with H 2 O 2 , but electrodeposited layers can be mechanically unstable (O'Connell et al, 1998). Pd, which has better electrodeposition characteristics (O'Connell et al, 1998), also displays high activity towards H 2 O 2 electro-oxidation, but much of this literature involves particulate forms of the metal embedded in carbon (Xu et al, 2002;Miscoria et al, 2002;Chang et al, 2003) and conducting polymers (Yamato et al, 1997). Thus, as a step towards fabricating well-based biosensors, basic issues such as usable potential range, suitability for electrosynthesis of permselective polymers, and comparative sensitivity to H 2 O 2 and interference, were studied here on solid Pd electrodes and compared to Pt, Au and glassy carbon (GC).…”

Section: Introductionmentioning

confidence: 99%

Comparisons of platinum, gold, palladium and glassy carbon as electrode materials in the design of biosensors for glutamate

O’Neill

Chang

Lowry

et al. 2004

Biosensors and Bioelectronics

128

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Four electrode materials: Pt, Au, Pd and glassy carbon (GC), were studied to investigate their suitability as substrates in the development of two different classes of glutamate biosensor. Glutamate oxidase cross-linked onto poly(o-phenylenediamine) was chosen as the type 1 biosensor (PPD/GluOx), incorporating PPD as the permselective element to detect H 2 O 2 directly on the electrode surface at relatively high applied potentials. GluOx and horseradish peroxidase/redox polymer modified electrodes (Os 2+ PVP/HRP/GluOx) that relied on enzyme-catalysed H 2 O 2 detection at lower applied potentials were used as type 2 biosensors.The voltammetric and amperometric responses to the enzyme signal transduction molecule, H 2 O 2 , and the archetypal interference species in biological applications, ascorbic acid, were determined on the bare and PPD/GluOx-modified surfaces. The amperometric responses of these electrodes were stable over several days of continuous recording in phosphate buffered saline (pH 7.4). The sensitivity of the type 1 biosensors to H 2 O 2 and glutamate showed parallel trends with low limits of detection and good linearity at low concentrations: Pt > Au ∼ Pd GC. Type 2 biosensors out-performed the type 1 design for all electrode substrates, except Pt. However, the presence of the permselective PPD membrane in the type 1 biosensors, not feasible in the type 2 design, suggests that Pt/PPD/GluOx might have the best all-round characteristics for glutamate detection in biological media containing interference species such as ascorbic acid. Other points affecting a final choice of substrate should include factors such as mass production issues.

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“…Particularly, Pt nanoparticles (PtNPs) are demonstrated to lower the H 2 O 2 oxidation/reduction overvoltage efficiently [22][23][24][25], which is very important for biosensors to avoid interference from other co-oxidable substances like ascorbic acid and acetaminophen. However, aggregation of PtNPs often makes such electrodes prone to poisoning or corrosion, and prohibits their applications [26].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of highly dispersed platinum nanoparticles on multiwalled carbon nanotubes and their electrocatalytic activity toward hydrogen peroxide

Zhang

Gao

2010

Journal of Alloys and Compounds

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Analytical Performance of a Glucose Biosensor Prepared by Immobilization of Glucose Oxidase and Different Metals into a Carbon Paste Electrode

Cited by 62 publications

References 10 publications

Nanometal-Decorated Exfoliated Graphite Nanoplatelet Based Glucose Biosensors with High Sensitivity and Fast Response

Nanometal-Decorated Exfoliated Graphite Nanoplatelet Based Glucose Biosensors with High Sensitivity and Fast Response

Comparisons of platinum, gold, palladium and glassy carbon as electrode materials in the design of biosensors for glutamate

Synthesis of highly dispersed platinum nanoparticles on multiwalled carbon nanotubes and their electrocatalytic activity toward hydrogen peroxide

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