SiO2/SnO2/Sb2O5 microporous ceramic material for immobilization of Meldola's blue: Application as an electrochemical sensor for NADH

Canevari, Thiago C.; Vinhas, Rita C. G.; Landers, Richard; Gushikem, Yoshitaka

doi:10.1016/j.bios.2010.10.020

Cited by 30 publications

(12 citation statements)

References 56 publications

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“…The Si 2p spectrum of the Ag/SiO 2 /MWCNT material had an intense peak with a binding energy of 103.3 eV, which indicates the presence of silica 36…”

Section: Resultsmentioning

confidence: 99%

Direct Synthesis of Ag Nanoparticles Incorporated on a Mesoporous Hybrid Material as a Sensitive Sensor for the Simultaneous Determination of Dihydroxybenzenes Isomers

et al. 2013

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This paper describes the synthesis, characterization, and applications of a mesoporous silica/ multiwalled carbon nanotube (SiO 2 /MWCNT) hybrid material, which was obtained by a sol-gel process and decorated with silver nanoparticles (AgNPs) ranging in size from 5 to 8 nm. The AgNPs were prepared directly on the surface of the SiO 2 /MWCNTs material by using N,N-dimethylformamide (DMF) as the reducing agent, and the resulting material was designated Ag/ SiO 2 /MWCNT. The Ag/SiO 2 /MWCNT material was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), high-resolution transmission electron microscopy (HR-TEM), and X-ray photoelectron spectroscopy (XPS). A glassy carbon electrode, modified with the Ag/SiO 2 /MWCNT material, was used in the development of a sensitive electrochemical sensor for the [a]

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“…The Si 2p spectrum of the Ag/SiO 2 /MWCNT material had an intense peak with a binding energy of 103.3 eV, which indicates the presence of silica 36…”

Section: Resultsmentioning

confidence: 99%

Direct Synthesis of Ag Nanoparticles Incorporated on a Mesoporous Hybrid Material as a Sensitive Sensor for the Simultaneous Determination of Dihydroxybenzenes Isomers

et al. 2013

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“…Some redox mediators have been used as shuttle for the electron transport from NADH to the electrode surface (Canevari et al, 2011;Dilgin et al, 2013;Gamella et al 2010;Lee and Compton, 2013;Mao et al, 2011;Nassef et al, 2006;Prieto-Simon and Fábregas, 2004;Revenga-Parra et al, 2012;Zanardi et al, 2015) reducing, in this way, the energy necessary for NADH oxidation and improving the efficiency of the electrocatalytic oxidation process. The modification of electrodes with carbon nanomaterials (Gasnier et al, 2013;Sun et al, 2013;Wang et al, 2012), nanoparticles Jena and Raj, 2006;Sharifi et al, 2013) or hybrid nanomaterials (Agüí et al, 2009;Govindhan et al, 2015;Hosseini et al, 2014;Mundaca et al, 2012;Teymourian et al, 2013;Tiwari and Gupta, 2014) have demonstrated to be highly successful.…”

Section: Introductionmentioning

confidence: 98%

Single-walled carbon nanotubes covalently functionalized with polytyrosine: A new material for the development of NADH-based biosensors

Eguílaz

Gutiérrez

González‐Domínguez

et al. 2016

Biosensors and Bioelectronics

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“…Sb2O5 is a metal oxide widely employed in the synthesis of hybrid materials for electroanalytical purposes [15][16][17] due to its excellent acidic properties and surface defects which favor the incorporation of other species on its surface and the electrocatalytic transformation of relevant compounds. The selected target analyte to evaluate the suitability of the hybrid nanomaterial-based biosensor was estriol ((16α,17β)-estra-1,3,5(10)-triene-3,16,17-triol), a phenolic estrogen hormone widely used in the treatment of urogenital diseases in menopausal women.…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol

Cincotto

Canevari

Machado

et al. 2015

Electrochimica Acta

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Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol, Electrochimica Acta http://dx. AbstractA novel reduced graphene oxide/Sb2O5 hybrid nanomaterial was prepared by a one-pot reaction process. The nanomaterial was characterized by different spectroscopic, microscopic and electrochemical techniques, demonstrating that the graphene sheets were doped with a Sb2O5 thin film. A glassy carbon electrode coated with the hybrid material was further employed as support for the covalent immobilization of laccase to develop an electrochemical biosensor for estriol. The enzyme biosensor showed high sensitivity (275 mA/M) and fast analytical response (4 s) for the hormone, with a limit of detection of 11 nM in the range of 25 nM to 1.03 µM. The biosensor showed high selectivity for the analytical detection of estriol.

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SiO2/SnO2/Sb2O5 microporous ceramic material for immobilization of Meldola's blue: Application as an electrochemical sensor for NADH

Cited by 30 publications

References 56 publications

Direct Synthesis of Ag Nanoparticles Incorporated on a Mesoporous Hybrid Material as a Sensitive Sensor for the Simultaneous Determination of Dihydroxybenzenes Isomers

Direct Synthesis of Ag Nanoparticles Incorporated on a Mesoporous Hybrid Material as a Sensitive Sensor for the Simultaneous Determination of Dihydroxybenzenes Isomers

Single-walled carbon nanotubes covalently functionalized with polytyrosine: A new material for the development of NADH-based biosensors

Reduced graphene oxide-Sb2O5 hybrid nanomaterial for the design of a laccase-based amperometric biosensor for estriol

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