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Titre du document / Document title

Chemisorbed PEGylated lipopolymers as sensing film supports for QCM odor sensors

Auteur(s) / Author(s)

WYSZYNSKI Bartosz ; SOMBOON Pakpum ; NAKAMOTO Takamichi ;

Résumé / Abstract

We report application of the PEGylated lipids (PEG lipopolymers) containing disulphide as supports for sensing films for quartz crystal microbalance (QCM) odor sensors. The materials are binding covalently to the surface of gold QCM sensor electrode creating self-assembled cushion. Additional amounts of lipid or lipid-derived materials can be physisorbed on that chemisorbed coating. Both processes do not require much labor and can be performed with minimum instruments in a simple process. The sensors fabricated with the chemisorbed supports are more sensitive to the tested odorants than their non-supported counterparts. Enhanced sensitivity is derived from higher fluidity of the supported films in comparison to the non-supported ones. Discrimination capability among odorants is also better for the sensors with chemisorbed supports than for the non-supported ones-there are no overlaps between the sample groups and the samples are clustered closely within the groups. Overall, the studied supported sensors introduce interesting properties that can be utilized in the odor sensing systems using QCM sensors.

Revue / Journal Title

Sensors and actuators. B, Chemical    ISSN  0925-4005 

Source / Source

2008, vol. 130, no2, pp. 857-863 [7 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1990) (Revue)

Mots-clés d'auteur / Author Keywords

Odor sensor

;

PEGylated lipid

;

Lipopolymer

;

Sensing material

;

Artificial olfaction

;

QCM

;

Localisation / Location

INIST-CNRS, Cote INIST : 19425 B, 35400018334020.0430

Nº notice refdoc (ud4) : 20215664



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