Artículo
A hybrid nanosensor for TNT vapor detection
Aguilar, Alvaro Díaz; Forzani, Erica S.; Leright, Mathew; Tsow, Francis; Cagan, Avi; Iglesias, Rodrigo Alejandro
; Nagahara, Larry A.; Amlani, Islamshah; Tsui, Raymond; Tao, N.J.
Fecha de publicación:
02/2010
Editorial:
American Chemical Society
Revista:
Nano Letters
ISSN:
1530-6984
e-ISSN:
1530-6992
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Real-time detection of trace chemicals, such as explosives, in a complex environment containing various interferents has been a difficult challenge. We describe here a hybrid nanosensor based on the electrochemical reduction of TNT and the interaction of the reduction products with conducting polymer nanojunctions in an ionic liquid. The sensor simultaneously measures the electrochemical current from the reduction of TNT and the conductance change of the polymer nanojunction caused from the reduction product. The hybrid detection mechanism, together with the unique selective preconcentration capability of the ionic liquid, provides a selective, fast, and sensitive detection of TNT. The sensor, in its current form, is capable of detecting parts-per-trillion level TNT in the presence of various interferents within a few minutes.
Palabras clave:
Conducting Polymers
,
Explosive Detection
,
Hybrid Sensors
,
Nanosensors
,
Nanowires
Archivos asociados
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Identificadores
Colecciones
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Aguilar, Alvaro Díaz; Forzani, Erica S.; Leright, Mathew; Tsow, Francis; Cagan, Avi; et al.; A hybrid nanosensor for TNT vapor detection; American Chemical Society; Nano Letters; 10; 2; 2-2010; 380-384
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