Abstract:
Here we report the derivatization of mesoporous TiO2 thin films for the preparation of H2O2 amperometric sensors. The coordination of the bifunctional ligand 1,10 phenantroline, 5,6 dione on the surface Ti(IV) ions provides open coordination sites for Fe(II) cations which are the starting point for the growth of a layer of Prussian blue polymer. The porous structure of the mesoporous TiO2 allows the growth, ion by ion of the coordination polymer. Up to four layer of Prussian blue can be deposit without losing the porous structure of the film, which results in an enhanced response of these materials as H2O2 sensors. These porous confined PB modified electrodes are robust sensors that exhibit good reproducibility, environmental stability and high sensitivity towards H2O2 detection. © 2010 Elsevier B.V.
Registro:
Documento: |
Artículo
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Título: | Structure effects of self-assembled Prussian blue confined in highly organized mesoporous TiO2 on the electrocatalytic properties towards H2O2 detection |
Autor: | Gaitán, M.; Gonçales, V.R.; Soler-Illia, G.J.A.A.; Baraldo, L.M.; de Torresi, S.I.C. |
Filiación: | INQUIMAE-Facultad de Ciencias Exactas y Naturales - UBA, Ciudad Universitaria, Pabellón 2, C1428EHA, Ciudad de Buenos Aires, Argentina Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Centro Atómico Constituyentes, Av. Gral Paz 1499, San Martín, B1650KNA Buenos Aires, Argentina Instituto de Química, Universidade de São Paulo, C.P. 26077, 05513-970 São Paulo, SP, Brazil
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Palabras clave: | Amperometric; Artificial peroxidase; Electrochemical; Electrodes; Functionalization; H2O2 detection; Mesoporous; Prussian blue; Sensor; Amperometric; Artificial peroxidase; Electrochemical; Functionalizations; H2O2 detection; Mesoporous; Prussian Blue; Amperometric sensors; Film preparation; Ions; Electrochemical electrodes; 1,10 phenanthroline 5,6 quinone; ferric ferrocyanide; ferrous ion; hydrogen peroxide; phenanthroline derivative; polymer; titanium dioxide; unclassified drug; amperometric biosensor; article; catalysis; chemical structure; electrochemical detection; electrode; porosity; Biosensing Techniques; Catalysis; Conductometry; Electrodes; Equipment Design; Equipment Failure Analysis; Ferrocyanides; Hydrogen Peroxide; Porosity; Titanium |
Año: | 2010
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Volumen: | 26
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Número: | 2
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Página de inicio: | 890
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Página de fin: | 893
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DOI: |
http://dx.doi.org/10.1016/j.bios.2010.07.026 |
Título revista: | Biosensors and Bioelectronics
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Título revista abreviado: | Biosens. Bioelectron.
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ISSN: | 09565663
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CODEN: | BBIOE
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CAS: | ferric ferrocyanide, 12240-15-2, 14038-43-8, 14433-93-3, 14460-02-7; ferrous ion, 15438-31-0; hydrogen peroxide, 7722-84-1; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0; Ferrocyanides; Hydrogen Peroxide, 7722-84-1; Titanium, 7440-32-6; ferric ferrocyanide, 14038-43-8; titanium dioxide, 13463-67-7
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09565663_v26_n2_p890_Gaitan |
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Citas:
---------- APA ----------
Gaitán, M., Gonçales, V.R., Soler-Illia, G.J.A.A., Baraldo, L.M. & de Torresi, S.I.C.
(2010)
. Structure effects of self-assembled Prussian blue confined in highly organized mesoporous TiO2 on the electrocatalytic properties towards H2O2 detection. Biosensors and Bioelectronics, 26(2), 890-893.
http://dx.doi.org/10.1016/j.bios.2010.07.026---------- CHICAGO ----------
Gaitán, M., Gonçales, V.R., Soler-Illia, G.J.A.A., Baraldo, L.M., de Torresi, S.I.C.
"Structure effects of self-assembled Prussian blue confined in highly organized mesoporous TiO2 on the electrocatalytic properties towards H2O2 detection"
. Biosensors and Bioelectronics 26, no. 2
(2010) : 890-893.
http://dx.doi.org/10.1016/j.bios.2010.07.026---------- MLA ----------
Gaitán, M., Gonçales, V.R., Soler-Illia, G.J.A.A., Baraldo, L.M., de Torresi, S.I.C.
"Structure effects of self-assembled Prussian blue confined in highly organized mesoporous TiO2 on the electrocatalytic properties towards H2O2 detection"
. Biosensors and Bioelectronics, vol. 26, no. 2, 2010, pp. 890-893.
http://dx.doi.org/10.1016/j.bios.2010.07.026---------- VANCOUVER ----------
Gaitán, M., Gonçales, V.R., Soler-Illia, G.J.A.A., Baraldo, L.M., de Torresi, S.I.C. Structure effects of self-assembled Prussian blue confined in highly organized mesoporous TiO2 on the electrocatalytic properties towards H2O2 detection. Biosens. Bioelectron. 2010;26(2):890-893.
http://dx.doi.org/10.1016/j.bios.2010.07.026