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EnglishThe present application is based on the use of carbon nanotubes (CNTs) for biomolecular analysis using electro- chemiluminescence (ECL) detection technique [1]. For this purpose we have grown self standing cylinder-shaped blocks of multi-wall CNTs (MWCNTs) by means of a catalytic chemical vapour deposition system, fed by camphor and ferrocene gases. The blocks were subsequently back-contacted and encapsulated into epoxy resin as electrical insulator and sealant, for their use as voltammetric electrodes. A ruthenium-complex solution has been used as ECL label. It has been observed a periodical light emission that lasts for hundreds of cycles, likely due to the CNTs struc- ture. Thanks to a data-processing algorithm which exploits this behavior, the experiments show that it is possible to obtain a great increase in detection limit as compared to the common working metal electrodes (for example Au or Pt).
Carbon nanotube electrodes for electrochemiluminescence biosensors / A. Sanginario; D. Demarchi; P. Civera; M. Giorcelli; M. Castellino; A. Tagliaferro. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 5(2010). ((Intervento presentato al convegno EuroSensors XXIV tenutosi a Linz nel 5-8 September 2010.
| Titolo: | Carbon nanotube electrodes for electrochemiluminescence biosensors | |
| Autori: | ||
| Data di pubblicazione: | 2010 | |
| Rivista: | ||
| Abstract: | The present application is based on the use of carbon nanotubes (CNTs) for biomolecular analysis ...using electro- chemiluminescence (ECL) detection technique [1]. For this purpose we have grown self standing cylinder-shaped blocks of multi-wall CNTs (MWCNTs) by means of a catalytic chemical vapour deposition system, fed by camphor and ferrocene gases. The blocks were subsequently back-contacted and encapsulated into epoxy resin as electrical insulator and sealant, for their use as voltammetric electrodes. A ruthenium-complex solution has been used as ECL label. It has been observed a periodical light emission that lasts for hundreds of cycles, likely due to the CNTs struc- ture. Thanks to a data-processing algorithm which exploits this behavior, the experiments show that it is possible to obtain a great increase in detection limit as compared to the common working metal electrodes (for example Au or Pt). | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Carbon nanotube electrodes for electrochemiluminescence biosensors.pdf | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2499873
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