| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Céspedes, Francisco
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2016Characterization protocol to improve the electroanalytical response of graphene-polymer nanocomposite sensorscitations
- 2016Highly sensitive electrochemical immunosensor for IgG detection based on optimized rigid biocompositescitations
- 2016Amperometric thyroxine sensor using a nanocomposite based on graphene modified with gold nanoparticles carrying a thiolated β-cyclodextrincitations
- 2016Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dotscitations
- 2016CdS quantum dots as a scattering nanomaterial of carbon nanotubes in polymeric nanocomposite sensors for microelectrode array behaviorcitations
- 2016Intermatrix synthesis of Ag, AgAu and Au nanoparticles by the galvanic replacement strategy for bactericidal and electrocatalytically active nanocompositescitations
- 2015Modified multiwalled carbon nanotube/epoxy amperometric nanocomposite sensors with CuO nanoparticles for electrocatalytic detection of free chlorinecitations
- 2015Improvement of the detection limit for biosensors: Advances on the optimization of biocomposite compositioncitations
- 2015Effect of carbon nanotubes purification on electroanalytical response of near-percolation amperometric nanocomposite sensorscitations
- 2014Towards to the improvement of the analytical response in voltammetric sensors based on rigid compositescitations
- 2014Simple green routes for the customized preparation of sensitive carbon nanotubes/epoxy nanocomposite electrodes with functional metal nanoparticlescitations
- 2012Determination of total polyphenol index in wines employing a voltammetric electronic tonguecitations
- 2011A new amperometric bienzymatic biosensor based on biocomposites for the determination of gluconic acid in winescitations
- 2009Novel amperometric sensor based on rigid near-percolation compositecitations
- 2009Resolution of heavy metal mixtures from highly overlapped ASV voltammograms employing a wavelet neural networkcitations
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article
Towards to the improvement of the analytical response in voltammetric sensors based on rigid composites
Abstract
© 2014 Elsevier B.V. All rights reserved. In order to increase the efficiency of voltammetric transducers we have studied the use of alternative strategies to characterize and optimize the composition of composite electrodes based on graphite and epoxy. The electroanalytical properties such as limit of detection and sensitivity have been improved by optimizing the distribution of the graphite particles inside the composite materials. The composites were characterized and optimized by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) measurements. EIS measurements provide information about the electron-transfer rate, the double-layer capacitance, contact resistance and resistance of the solution. These optimized parameters are directly related with the response time, signal-to-noise ratio (limit of detection) and sensitivity, respectively. In addition, morphological and conductance characterization was performed by atomic force microscopy and complemented with scanning electron microscopy. The improvement of the electroanalytical response was evaluated by means of hydrodynamic amperometry measurements using different reference analytes.