Flexible Chemical Sensors Using Signal Generation from Cyclodextrin-Analyte Interactions on Polymer Composites
- Authors
- Bae, J.; Shin, D.-S.; Ha, J.-H.; Hwang, Y.; Lee, C.-S.; Kim, H.J.; Jang, A.; Park, S.-H.
- Issue Date
- Sep-2020
- Publisher
- SpringerOpen
- Keywords
- cyclodextrin; Flexible sensor; graphene; inclusion complex; poly(dimethylsiloxane)
- Citation
- Biochip Journal, v.14, no.3, pp.251 - 257
- Journal Title
- Biochip Journal
- Volume
- 14
- Number
- 3
- Start Page
- 251
- End Page
- 257
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/38583
- DOI
- 10.1007/s13206-020-4303-3
- ISSN
- 1976-0280
- Abstract
- We present the design of a chemical sensor and study the generation of electrical signals produced by the formation of a cyclodextrin inclusion complex. Flexible poly(dimethylsiloxane)/graphene hybrid composites were used as sensor substrates and sensing media, beta-cyclodextrin (beta-CD) molecules were incorporated using simple bio-coupling reactions. The feasibility of sensing molecules through the formation of beta-CD/analyte inclusion complexes was investigated systematically using direct electrical measurement. The acquisition and transduction of electrical signals generated by inclusion complex formation is a central focus of this study and extensive complementary experiments were carried out to characterize this phenomenon. Because it is useful for development of a sort of sensor system, electrical measurements were performed to measure the sensitivity of this system (10 nM). However, more study is required to determine the selectivity. This article will be a useful reference for the design of versatile chemical sensors utilizing a non-toxic sensing medium on flexible composite substrates. © 2020, The Korean BioChip Society and Springer.
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