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. 2018 Oct 26;18(11):3638. doi: 10.3390/s18113638

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Panel (a): sketch of the device showing the electrodes and the dielectric porous GO (pGO) between them; Panel (b): SEM image of the pGO network. The graphs report the responses of the not-functionalized (pGO) and phenyl-, dodecyl-, ethanol-functionalized GO sensors to different gas vapours, indicated according to colour code (concentration 180 ppm) and 75% RH. (Adapted and reproduced with permission of RSC Pub., Cambridge, United Kingdom, from [95]; permission conveyed through Copyright Clearence Center, Inc.).