Nanowire Sensor for Volatile Organic Compounds by Formation of Charge Transfer Complex

Masunaga, Kumi; Sato, Miki; Hayashi, Kenshi; Toko, Kiyoshi

doi:10.1109/icsens.2007.4388478

Cited by 1 publication

(1 citation statement)

References 9 publications

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“…QCM also has a problem with its ability to distinguish unspecifi c adsorption. It is important to install a high-performance detector that can provide molecular information on the adsorbed odor molecules (9,10) and use a gas-preconditioning method that can fi lter various odorants in the odor sensor system.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Odor Sensor Surface Recognizing Substructure of Odorant

Sasaki

Hayashi²,

Toko³

2009

Sensors and Materials

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In biological systems, odor receptors receive odor molecules by recognizing molecular information. Recent studies have shown that the size and electrical dipole of molecules are important for odor reception. We developed an odor code sensor that recognizes essential molecular information for reconstructing the odor code of odor molecules. The substructure of odor molecules is a candidate target property of a developed odor code sensor. The substructures of odorants are received at the sensor surface; therefore, the design of surface functionality is important. In this study, a selfassembled monolayer (SAM) was used to construct a nanospace that fi ts the substructure of odor molecules. A surface that can recognize substructures was fabricated by the mixed SAM method. A competitive method and a replacement method were examined for SAM surface preparation. The mixed SAMs obtained were analyzed by contact angle measurement, ellipsometry, and an electrochemical method. Finally, the surface was evaluated through odorant responses, and the specifi city to odorants was confi rmed.

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Section: Resultsmentioning

confidence: 99%