Sensors 2009, 9(10), 7733-7752; doi:10.3390/s91007733

Structure and Sensor Properties of Thin Ordered Solid Films

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Received: 28 July 2009; in revised form: 9 September 2009 / Accepted: 9 September 2009 / Published: 28 September 2009
(This article belongs to the Special Issue Gas Sensors 2009)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Miniaturized gas sensors and biosensors based on nanostructured sensing elements have attracted considerable interest because these nanostructured materials can be used to significantly improve sensor sensitivity and the response time. We report here on a generic, reversible sensing platform based on hybrid nanofilms. Thin ordered Langmuir-Blodgett (LB) films built of fluorene derivatives were used as effective gas sensors for both oxidative and reductive analytes. A novel immobilization method based on thin LB films as a matrix has been developed for construction of sensing protein layers. Biomolecules can often be incorporated into and immobilized on Langmuir-Blodgett films using adsorption methods or by covalent immobilization of proteins. The sensor sensitisation was achieved by an amphiphilic N-alkyl-bis(thiophene)arylenes admixed into the film. The interlaced derivative was expected to facilitate the electron transfer, thereby enhancing the sensor sensitivity. The results suggest that this may be very promising approach for exploring the interactions between proteins and high throughput detection of phenol derivatives in wastewater.
Keywords: Langmuir-Blodgett films; laccase; tyrosinase; diphenylamine and carbazole derivatives; biosensing effect; gas sensors; electroconductivity; AFM
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MDPI and ACS Style

Sołoducho, J.; Cabaj, J.; Świst, A. Structure and Sensor Properties of Thin Ordered Solid Films. Sensors 2009, 9, 7733-7752.

AMA Style

Sołoducho J, Cabaj J, Świst A. Structure and Sensor Properties of Thin Ordered Solid Films. Sensors. 2009; 9(10):7733-7752.

Chicago/Turabian Style

Sołoducho, Jadwiga; Cabaj, Joanna; Świst, Agnieszka. 2009. "Structure and Sensor Properties of Thin Ordered Solid Films." Sensors 9, no. 10: 7733-7752.

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