| Title: | Supramolecular self-assembly of a nitro-incorporating quinoxaline framework: insights into the origin of fluorescence turn-on response towards the benzene group of VOCs |
| Address: | "Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India. gdas@iitg.ac.in" |
| ISSN/ISBN: | 1364-5528 (Electronic) 0003-2654 (Linking) |
| Abstract: | "Hazardous volatile organic compounds (VOCs) can significantly impact human health and the environment. Hence, the detection of VOCs is of foremost importance. A quinoxaline-based fluorimetric probe (1) unveils a notable 'turn-on' fluorescence response towards mesitylene in the presence of other VOCs and common interfering ions in aqueous media. The sensing phenomenon involves specific 1 : 1 stoichiometric binding of the probe with mesitylene with a approximately 2.66 ppm detection limit. Furthermore, the probe experiences morphological transformations from a fibril-network to a stone-shaped hetero-structure upon treatment with mesitylene, indicating mesitylene induced self-assembly. The detection induced self-assembly of the probe was further corroborated by dynamic-light-scattering (DLS) and fluorescence microscopy study. Importantly, this proposed approach is applicable to detect mesitylene in natural water sources and in the vapor phase using portable, low-cost filter paper strips" |
| Keywords: | "Benzene Humans Ions Quinoxalines Spectrometry, Fluorescence *Volatile Organic Compounds;" |
| Notes: | "MedlineBasak, Megha Das, Gopal eng England 2021/09/17 Analyst. 2021 Oct 11; 146(20):6239-6244. doi: 10.1039/d1an01127h" |
