Nanostructured molecular assembly provides, in many cases, peculiar properties that are not found in the individual constituents. Among three-dimensional arrangements the tubular structures are particularly appealing for chemical sensor applications at least for the expected surface increase. In this paper, the sensing properties of nanotubes self-assembled of oppositely charged porphyrins are investigated for the first time. Nanotube arrangement is shown to increase the sensitivity in both mass and optical sensors. The optical sensitivity, not found in individual porphyrins, appears as an intrinsic nanotube property. ©2007 IEEE.
Chemical sensitivity of porphyrin nanotubes / Martinelli, E.; Dini, F.; Iannaccone, I.; Monti, D.; Pomarico, G.; Generosi, R.; Luce, M.; D'Amico, A.; Paolesse, R.; Di Natale, C.. - (2007), pp. 1027-1030. (Intervento presentato al convegno 4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07 tenutosi a Lyon, fra) [10.1109/SENSOR.2007.4300308].
Chemical sensitivity of porphyrin nanotubes
Monti D.;
2007
Abstract
Nanostructured molecular assembly provides, in many cases, peculiar properties that are not found in the individual constituents. Among three-dimensional arrangements the tubular structures are particularly appealing for chemical sensor applications at least for the expected surface increase. In this paper, the sensing properties of nanotubes self-assembled of oppositely charged porphyrins are investigated for the first time. Nanotube arrangement is shown to increase the sensitivity in both mass and optical sensors. The optical sensitivity, not found in individual porphyrins, appears as an intrinsic nanotube property. ©2007 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
