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Abstract:

Poly(allylamine)-dodecylsulfate complex (PA-DS) is able to form a stable and layered structure onto graphite electrodes and can efficiently retain negatively charged ions like ferrocyanide. In this context, Prussian blue (PB) is electrochemically synthesized from a solution containing K 3[Fe(CN)6] and FeCl3 at pH 1.7. The electrochemical behavior of the new system is investigated in different supporting electrolytes (K+ and Na+) and in acid and neutral media. Remarkable, well-defined and reversible voltammetric responses are obtained, especially under physiological conditions (neutral pH and 150 mM NaCl). In these conditions, the modified electrode is able to electrocatalyze the reduction of hydrogen peroxide (H2O2) at micromolar levels, with a low detection limit and good sensitivity. These results represent an important improvement regarding further uses of PB in bioanalytical applications. © 2013 Elsevier B.V.

Registro:

Documento: Artículo
Título:Hydrogen peroxide detection under physiological conditions by Prussian blue stabilized using a polyelectrolyte-surfactant complex matrix
Autor:Gaviglio, C.; Battaglini, F.
Filiación:INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Ciudad Universitaria, Pabellón 2, C1428EHA, Buenos Aires, Argentina
Palabras clave:Artificial peroxidase; H2O2 detection; Physiological conditions; Poly(allylamine); Prussian blue; Sodium dodecylsulfate; Artificial peroxidase; Bioanalytical applications; Electrochemical behaviors; Hydrogen peroxide detections; Physiological condition; Polyallylamine; Polyelectrolyte-surfactant complexes; Prussian blue; Graphite electrodes; Hydrogen peroxide; Peroxides; Physiology; Sodium dodecyl sulfate; Physiological models
Año:2013
Volumen:182
Página de inicio:53
Página de fin:57
DOI: http://dx.doi.org/10.1016/j.snb.2013.02.081
Título revista:Sensors and Actuators, B: Chemical
Título revista abreviado:Sens Actuators, B Chem
ISSN:09254005
CODEN:SABCE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09254005_v182_n_p53_Gaviglio

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Citas:

---------- APA ----------
Gaviglio, C. & Battaglini, F. (2013) . Hydrogen peroxide detection under physiological conditions by Prussian blue stabilized using a polyelectrolyte-surfactant complex matrix. Sensors and Actuators, B: Chemical, 182, 53-57.
http://dx.doi.org/10.1016/j.snb.2013.02.081
---------- CHICAGO ----------
Gaviglio, C., Battaglini, F. "Hydrogen peroxide detection under physiological conditions by Prussian blue stabilized using a polyelectrolyte-surfactant complex matrix" . Sensors and Actuators, B: Chemical 182 (2013) : 53-57.
http://dx.doi.org/10.1016/j.snb.2013.02.081
---------- MLA ----------
Gaviglio, C., Battaglini, F. "Hydrogen peroxide detection under physiological conditions by Prussian blue stabilized using a polyelectrolyte-surfactant complex matrix" . Sensors and Actuators, B: Chemical, vol. 182, 2013, pp. 53-57.
http://dx.doi.org/10.1016/j.snb.2013.02.081
---------- VANCOUVER ----------
Gaviglio, C., Battaglini, F. Hydrogen peroxide detection under physiological conditions by Prussian blue stabilized using a polyelectrolyte-surfactant complex matrix. Sens Actuators, B Chem. 2013;182:53-57.
http://dx.doi.org/10.1016/j.snb.2013.02.081