The alternating deposition on quartz of a cationic polymer and the integral bacterial membrane protein called Reaction Centre led to the formation of the polyelectrolyte multilayer called PEM. The PEM revealed to be a valuable tool for the determination of the presence of herbicides in water through the measurement of its optical properties. Among the most striking features of the PEM is the long time stability of the embedded protein that allowed the use of the same specimen for several months without any loss in sensitivity or reproducibility of the determinations. Here further details on the PEM structure and properties will be presented together with a first attempt to overcome the major drawback of the proposed biosensor, i.e.: its poor sensitivity.

Triazine herbicides determination in water with an optical biosensor / MATTIA, AUTULLO; MAURO, MENNUNI; GIUSTINI, Mauro; MARCELLO, GIOMINI; FRANCESCO, LOPEZ; ANTONIA, MALLARDI; GERARDO, PALAZZO. - (2009), pp. 213-217. ((Intervento presentato al convegno 3rd IEEE International Workshop on Advances in Sensors and Interfaces tenutosi a Trani; Italy nel 25-26 June 2009 [10.1109/IWASI.2009.5184798].

Triazine herbicides determination in water with an optical biosensor

GIUSTINI, Mauro;
2009

Abstract

The alternating deposition on quartz of a cationic polymer and the integral bacterial membrane protein called Reaction Centre led to the formation of the polyelectrolyte multilayer called PEM. The PEM revealed to be a valuable tool for the determination of the presence of herbicides in water through the measurement of its optical properties. Among the most striking features of the PEM is the long time stability of the embedded protein that allowed the use of the same specimen for several months without any loss in sensitivity or reproducibility of the determinations. Here further details on the PEM structure and properties will be presented together with a first attempt to overcome the major drawback of the proposed biosensor, i.e.: its poor sensitivity.
2009
3rd IEEE International Workshop on Advances in Sensors and Interfaces
Bacterial membrane proteins; Cationic polymers; Optical bio-sensors
Pubblicazione in atti di convegno::04b Atto di convegno in volume
Triazine herbicides determination in water with an optical biosensor / MATTIA, AUTULLO; MAURO, MENNUNI; GIUSTINI, Mauro; MARCELLO, GIOMINI; FRANCESCO, LOPEZ; ANTONIA, MALLARDI; GERARDO, PALAZZO. - (2009), pp. 213-217. ((Intervento presentato al convegno 3rd IEEE International Workshop on Advances in Sensors and Interfaces tenutosi a Trani; Italy nel 25-26 June 2009 [10.1109/IWASI.2009.5184798].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/63145
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