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Type: Journal article
Title: Core-shell nanostructured hybrid composites for volatile organic compound detection
Author: Tung, T.
Losic, D.
Park, S.
Feller, J.
Kim, T.
Citation: International Journal of Nanomedicine, 2015; 10:203-214
Publisher: Dovepress
Issue Date: 2015
ISSN: 1176-9114
Statement of
Tran Thanh Tung, Dusan Losic, Seung Jun Park, Jean-Francois Feller, TaeYoung Kim
Abstract: We report a high-performance chemiresistive sensor for detection of volatile organic compound (VOC) vapors based on core-shell hybridized nanostructures of Fe3O4 magnetic nanoparticles (MNPs) and poly(3,4-ethylenedioxythiophene) (PEDOT)-conducting polymers. The MNPs were prepared using microwave-assisted synthesis in the presence of polymerized ionic liquids (PILs), which were used as a linker to couple the MNP and PEDOT. The resulting PEDOT-PIL-modified Fe3O4 hybrids were then explored as a sensing channel material for a chemiresistive sensor to detect VOC vapors. The PEDOT-PIL-modified Fe3O4 sensor exhibited a tunable response, with high sensitivity (down to a concentration of 1 ppm) and low noise level, to VOCs; these VOCs include acetone vapor, which is present in the exhaled breath of potential lung cancer patients. The present sensor, based on the hybrid nanostructured sensing materials, exhibited a 38.8% higher sensitivity and an 11% lower noise level than its PEDOT-PIL-only counterpart. This approach of embedding MNPs in conducting polymers could lead to the development of new electronic noses, which have significant potential for the use in the early diagnosis of lung cancer via the detection of VOC biomarkers.
Keywords: hybrid nanomaterials; nanoparticle; conducting polymer; electronic nose; lung cancer detection
Rights: © 2015 Tung et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License. The full terms of the License are available at Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. Permissions beyond the scope of the License are administered by Dove Medical Press Limited. Information on how to request permission may be found at:
RMID: 0030040083
DOI: 10.2147/IJN.S88305
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Appears in Collections:Chemical Engineering publications

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