Abstract
Poly(thiophene-acetic-acid)/magnetite nanocomposite electrodes were fabricated from aqueous solutions on PDADMA (polydiallyldimethylammonium chloride) pre-treated ITO covered glass electrodes, employing layer by layer (LBL) technique. This approach was selected on the ground of the interaction between the surface OH-groups of the magnetite and the carboxylic group of the thiophene derivative. The gradual development of the hybrid assembly was followed by UV-vis spectroscopy, and was found to be continuous up to 30 bilayers. Moreover, the absorbance increase at the characteristic wavelengths was linear in the whole examined region. Importantly, the LBL-prepared composites proved to be electroactive, in aqueous phosphate buffer the Fe 3+/Fe2+ redox transformation was observed. The electrocatalytic activity of the modified electrodes was demonstrated for electrooxidation of dopamine (DA), and the role of both components as well as their synergistic contribution was elucidated. Preliminary results indicate possible utilization of such hybrid assemblies in the amperometric detection of this analyte.
| Original language | English |
|---|---|
| Pages (from-to) | 62-68 |
| Number of pages | 7 |
| Journal | Synthetic Metals |
| Volume | 171 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- Dopamine oxidation
- Hybrid
- Layer by layer
- Magnetite
- Poly(3-thiophene-acetic-acid)
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Metals and Alloys
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Layer by layer growth of electroactive conducting polymer/magnetite hybrid assemblies. / Endrodi, B.; Bíró, A.; Janáky, C.; Tóth, I. Y.; Visy, C.
In: Synthetic Metals, Vol. 171, 2013, p. 62-68.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Layer by layer growth of electroactive conducting polymer/magnetite hybrid assemblies
AU - Endrodi, B.
AU - Bíró, A.
AU - Janáky, C.
AU - Tóth, I. Y.
AU - Visy, C.
PY - 2013
Y1 - 2013
N2 - Poly(thiophene-acetic-acid)/magnetite nanocomposite electrodes were fabricated from aqueous solutions on PDADMA (polydiallyldimethylammonium chloride) pre-treated ITO covered glass electrodes, employing layer by layer (LBL) technique. This approach was selected on the ground of the interaction between the surface OH-groups of the magnetite and the carboxylic group of the thiophene derivative. The gradual development of the hybrid assembly was followed by UV-vis spectroscopy, and was found to be continuous up to 30 bilayers. Moreover, the absorbance increase at the characteristic wavelengths was linear in the whole examined region. Importantly, the LBL-prepared composites proved to be electroactive, in aqueous phosphate buffer the Fe 3+/Fe2+ redox transformation was observed. The electrocatalytic activity of the modified electrodes was demonstrated for electrooxidation of dopamine (DA), and the role of both components as well as their synergistic contribution was elucidated. Preliminary results indicate possible utilization of such hybrid assemblies in the amperometric detection of this analyte.
AB - Poly(thiophene-acetic-acid)/magnetite nanocomposite electrodes were fabricated from aqueous solutions on PDADMA (polydiallyldimethylammonium chloride) pre-treated ITO covered glass electrodes, employing layer by layer (LBL) technique. This approach was selected on the ground of the interaction between the surface OH-groups of the magnetite and the carboxylic group of the thiophene derivative. The gradual development of the hybrid assembly was followed by UV-vis spectroscopy, and was found to be continuous up to 30 bilayers. Moreover, the absorbance increase at the characteristic wavelengths was linear in the whole examined region. Importantly, the LBL-prepared composites proved to be electroactive, in aqueous phosphate buffer the Fe 3+/Fe2+ redox transformation was observed. The electrocatalytic activity of the modified electrodes was demonstrated for electrooxidation of dopamine (DA), and the role of both components as well as their synergistic contribution was elucidated. Preliminary results indicate possible utilization of such hybrid assemblies in the amperometric detection of this analyte.
KW - Dopamine oxidation
KW - Hybrid
KW - Layer by layer
KW - Magnetite
KW - Poly(3-thiophene-acetic-acid)
UR - http://www.scopus.com/inward/record.url?scp=84876556031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876556031&partnerID=8YFLogxK
U2 - 10.1016/j.synthmet.2013.03.016
DO - 10.1016/j.synthmet.2013.03.016
M3 - Article
AN - SCOPUS:84876556031
VL - 171
SP - 62
EP - 68
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
ER -