title: Colorimetric Polydiacetylene-Aerogel Detector for Volatile Organic Compounds (VOCs).
abstract: A new hybrid system comprising polydiacetylene (PDA), a chromatic conjugated polymer, embedded within aerogel pores has been constructed. The PDA-aerogel powder underwent dramatic color changes in the presence of volatile organic compounds (VOCs), facilitated through infiltration of the gas molecules into the highly porous aerogel matrix and their interactions with the aerogel-embedded PDA units. The PDA-aerogel composite exhibited rapid color/fluorescence response and enhanced signals upon exposure to low VOC concentrations. Encapsulation of PDA derivatives displaying different headgroups within the aerogel produced distinct VOC-dependent color transformations, forming a PDA-aerogel "artificial nose".
authors.affiliation: Department of Chemistry, Ben Gurion University of the Negev , Beer Sheva 84105, Israel.
authors.forename: Susmita
authors.initials: S
authors.lastname: Dolai
authors.affiliation: Department of Chemistry, Ben Gurion University of the Negev , Beer Sheva 84105, Israel.
authors.forename: Susanta Kumar
authors.initials: SK
authors.lastname: Bhunia
authors.affiliation: Chemistry Department "G. Ciamician", Green Chemistry Lab, University of Bologna , Via S. Alberto 163, 48100 Ravenna, Italy.
authors.forename: Stella S
authors.initials: SS
authors.lastname: Beglaryan
authors.affiliation: Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev , Beer Sheva 84105, Israel.
authors.forename: Sofiya
authors.initials: S
authors.lastname: Kolusheva
authors.affiliation: Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev , Beer Sheva 84105, Israel.
authors.forename: Leila
authors.initials: L
authors.lastname: Zeiri
authors.affiliation: Department of Chemistry, Ben Gurion University of the Negev , Beer Sheva 84105, Israel.|Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev , Beer Sheva 84105, Israel.
authors.forename: Raz
authors.identifier: http://orcid.org/0000-0002-0336-1384
authors.initials: R
authors.lastname: Jelinek
keywords: aerogel; colorimetric sensors; nanoporous materials; polydiacetylene; volatile organic compounds