Reference : Quantitative volatile organic compound sensing with liquid crystal core fibers
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/50218
Quantitative volatile organic compound sensing with liquid crystal core fibers
English
Schelski, Katrin mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) >]
Reyes, Catherine mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Pschyklenk, Lukas mailto []
Kaul, Peter mailto []
Lagerwall, Jan mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) >]
22-Dec-2021
Cell Reports Physical Science
Cell Press (Elsevier)
2
12
100661
Yes
International
2666-3864
[en] volatile organic compound (VOC) sensing ; gas sensor ; liquid crystal ; electrospinning ; core-sheath fibers ; non-woven fiber mats ; wearable technology
[en] Polymer fibers with liquid crystals (LCs) in the core have potential as autonomous sensors of airborne volatile organic compounds (VOCs), with a high surface-to-volume ratio enabling fast and sensi- tive response and an attractive non-woven textile form factor. We demonstrate their ability to continuously and quantitatively mea- sure the concentration of toluene, cyclohexane, and isopropanol as representative VOCs, via the impact of each VOC on the LC bire- fringence. The response is fully reversible and repeatable over several cycles, the response time can be as low as seconds, and high sensitivity is achieved when the operating temperature is near the LC-isotropic transition temperature. We propose that a broad operating temperature range can be realized by combining fi- bers with different LC mixtures, yielding autonomous VOC sensors suitable for integration in apparel or in furniture that can compete with existing consumer-grade electronic VOC sensors in terms of sensitivity and response speed.
European Commission - EC ; Federal Ministry of Education and Research of Germany
Researchers ; Professionals
http://hdl.handle.net/10993/50218
10.1016/j.xcrp.2021.100661
H2020 ; 648763 - INTERACT - Intelligent Non-woven Textiles and Elastomeric Responsive materials by Advancing liquid Crystal Technology

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