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| Titel: |
MULTIWALLED CARBON NANOTUBE-BASED AROMATIC HYDROCARBON SENSOR USING ELECTRONIC DIPOLE SPECTROSCOPY |
| Auteur: |
Padigi, Sudhaprasanna Kumar Kunduru, Vindhya Prasad, Shalini |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 195 (2008) nr. 2 pagina's 115-128 |
| Jaar: |
2008-02 |
| Inhoud: |
A novel electronic spectroscopy technique based on dipole-dipole interactions for the identification of chemical analytes has been developed. This technique is based on the measurement of the charge transfer of chemical analytes to a multiwalled carbon nanotube mat-based sensing system. This technique was used for the identification of three aromatic hydrocarbons, namely, benzene, toluene, and xylene, at 100 parts-per-billion concentration. This technique was evaluated with multiwalled carbon nanotube mats for rapid, reliable, and robust identification of the three chemicals that belong to the same genre. The technique involves the identification of electronic spectral signatures of these chemicals using frequency domain analysis of the voltage signals generated by the binding of the chemical analytes onto the multiwalled carbon nanotube mat surfaces. This technique has the potential for rapid and accurate identification of multiple chemical analytes in a multiplexed fashion using a single-sensor device. In addition, this particular device configuration in conjunction with the electronic dipole spectroscopy results is a powerful lab-on-a-chip device for chemical and biological sensing applications. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 8 gevonden artikelen
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