@inproceedings{722d7ba2d2b3488084b195b2b6d5dfd0,
title = "Selective vapor detection of an integrated chemical sensor array",
abstract = "Graphene is a promising material for vapor sensor applications because of its potential to be functionalized for specific chemical gases. In this work, we present a graphene gas sensor that uses single-stranded DNA (ssDNA) molecules as its sensing agent. We investigate the characteristics of graphene field effect transistors (FETs) coated with different ssDNAs. The sensitivity and recovery rate for a specific gas are modified according to the differences in the DNA molecules' Guanine (G) and Cytosine (C) content. ssDNA-functionalized devices show a higher recovery rate compared to bare graphene devices. Pattern analysis of a 2-by-2 sensor array composed of graphene devices functionalized with different-sequence ssDNA enables identification of NH3, NO2, CO, SO2 using Principle Component Analysis (PCA).",
keywords = "Graphene, Principle Component Analysis, Sensor Array, Single-Stranded DNA",
author = "Youngmo Jung and Kim, {Young Jun} and Jaebin Choi and Chaehyun Lim and Shin, {Beom Ju} and Moon, {Hi Gyu} and Taikjin Lee and Kim, {Jae Hun} and Minah Seo and Kang, {Chong Yun} and Jun, {Seong Chan} and Seok Lee and Chulki Kim",
note = "Publisher Copyright: {\textcopyright} 2015 Copyright SPIE.; 5th Asia-Pacific Optical Sensors Conference, APOS 2015 ; Conference date: 20-05-2015 Through 22-05-2015",
year = "2015",
doi = "10.1117/12.2185259",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Byoungho Lee and Yunjiang Rao and Lee, {Sang Bae}",
booktitle = "Fifth Asia-Pacific Optical Sensors Conference, APOS 2015",
}