Detection of carbon dioxide using cucurbit[6]uril-functionalized gold nanorod gas sensor based on localized surface plasmon resonance

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Title
Detection of carbon dioxide using cucurbit[6]uril-functionalized gold nanorod gas sensor based on localized surface plasmon resonance
Author(s)
Seongjae Jo; Jinyeong Kim; Yejin Kim; Oh Seok Kwon
Bibliographic Citation
Applied Science and Convergence Technology, vol. 30, no. 6, pp. 186-190
Publication Year
2021
Abstract
Owing to rapid climate change and increasingly stringent carbon regulations, carbon dioxide detection is becoming more important. In this study, we fabricate a cucurbit[6]uril-functionalized gold nanorod-based localized surface plasmon resonance (LSPR) gas sensor to detect carbon dioxide. The gold nanorods provide a high refractive index unit that enables the measurement of gas molecules with low molecular weights, while cucurbit[6]uril is a chemical receptor that binds to carbon dioxide owing to its structural characteristics. Therefore, cucurbit[6]uril was functionalized through direct adhesion on the surface of gold nanorods, which was replaced with citrate. The manufactured sensor can detect the presence of carbon dioxide at a maximum concentration of 400 ppm in the atmosphere. The high potential applicability of the cucurbit[6]urilapplied LSPR gas sensors is demonstrated in this study.
Keyword
Carbon dioxideGold nanorodsLocalized surface plasmon resonanceCucurbiturilGas sensor
ISSN
2288-6559
Publisher
Korea Soc-Assoc-Inst
DOI
http://dx.doi.org/10.5757/ASCT.2021.30.5.186
Type
Article
Appears in Collections:
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
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