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EnglishA facile “one-step” route to produce a homogenous and highly stable cobalt phthalocyanine (CoPc)-based dispersion by using carbon black (CB) as supporting material is reported. Herein, CB is proposed as effective material to load CoPc in order to obtain a CB/CoPc hybrid nanocomposite dispersion suitable for modifying screen-printed electrodes (SPEs) by an easy and automatable drop casting approach. CoPc resulted anchored to CB by a non-covalent physisorption, confirmed by IR and UV-visible spectroscopies, allowing to preserve the electrochemical performances of CoPc. The resulting CB/CoPc-modified SPE was tested as sensing tool to detect thiocholine, an enzymatic product of butyrylcholinesterase (BChE). The use of CB/CoPc leads to a highly sensitive thiocholine detection by applying a low potential (+0.05 V vs. internal reference) without fouling problem, a typical drawback that affects the thiol electrochemical detection. The favorable characteristics of the sensor were exploited for an easy BChE biosensor fabrication that renders this biosensor well suitable for mass-production. This electrochemical monoenzymatic biosensor was then challenged towards paraoxon, chosen as model organophosphorous pesticide, obtaining a low detection limit (18 nM). The suitability of the biosensor was tested in a waste water sample obtaining satisfactory recovery values, thus demonstrating its capability in such complex matrix.
Cinti, S., Neagu, D., Carbone, M., Cacciotti, I., Moscone, D., & Arduini, F. (2016). Novel carbon black-cobalt phthalocyanine nanocomposite as sensing platform to detect organophosphorus pollutants at screen-printed electrode. ELECTROCHIMICA ACTA, 188, 574-581.
| Tipologia: | Articolo su rivista |
| Citazione: | Cinti, S., Neagu, D., Carbone, M., Cacciotti, I., Moscone, D., & Arduini, F. (2016). Novel carbon black-cobalt phthalocyanine nanocomposite as sensing platform to detect organophosphorus pollutants at screen-printed electrode. ELECTROCHIMICA ACTA, 188, 574-581. |
| IF: | Con Impact Factor ISI |
| Lingua: | English |
| Settore Scientifico Disciplinare: | Settore CHIM/01 - Chimica Analitica Settore CHIM/03 - Chimica Generale e Inorganica |
| Revisione (peer review): | Esperti anonimi |
| Tipo: | Articolo |
| Rilevanza: | Rilevanza internazionale |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.electacta.2015.11.069 |
| Stato di pubblicazione: | Pubblicato |
| Data di pubblicazione: | 2016 |
| Titolo: | Novel carbon black-cobalt phthalocyanine nanocomposite as sensing platform to detect organophosphorus pollutants at screen-printed electrode |
| Autori: | |
| Autori: | Cinti, S; Neagu, D; Carbone, M; Cacciotti, I; Moscone, D; Arduini, F |
| Appare nelle tipologie: | 01 - Articolo su rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 70 CoPc EA 2016 .pdf | N/A | Copyright dell'editore | Administrator Richiedi una copia |
http://hdl.handle.net/2108/134849
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