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Issue 14, 2012
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A bioelectronic sensor based on canine olfactory nanovesicle–carbon nanotube hybrid structures for the fast assessment of food quality

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Abstract

We developed an olfactory-nanovesicle-fused carbon-nanotube-transistor biosensor (OCB) that mimics the responses of a canine nose for the sensitive and selective detection of hexanal, an indicator of the oxidation of food. OCBs allowed us to detect hexanal down to 1 fM concentration in real-time. Significantly, we demonstrated the detection of hexanal with an excellent selectivity capable of discriminating hexanal from analogous compounds such as pentanal, heptanal, and octanal. Furthermore, we successfully detected hexanal in spoiled milk without any pretreatment processes. Considering these results, our sensor platform should offer a new method for the assessment of food quality and contribute to the development of portable sensing devices.

Graphical abstract: A bioelectronic sensor based on canine olfactory nanovesicle–carbon nanotube hybrid structures for the fast assessment of food quality

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Publication details

The article was received on 19 Dec 2011, accepted on 02 Mar 2012 and first published on 05 Mar 2012


Article type: Paper
DOI: 10.1039/C2AN16274A
Citation: Analyst, 2012,137, 3249-3254
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    A bioelectronic sensor based on canine olfactory nanovesicle–carbon nanotube hybrid structures for the fast assessment of food quality

    J. Park, J. H. Lim, H. J. Jin, S. Namgung, S. H. Lee, T. H. Park and S. Hong, Analyst, 2012, 137, 3249
    DOI: 10.1039/C2AN16274A

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