Abstract
The cost-effective and rapid detection of nitroaromatic explosives is highly desired for growing con cern about the environmental pollution and terror threats. Herein, a facile sensing system for fast and trace detection of nitroaromatic explosives (e.g. picric acid (PA) and 2,4-dinitrotoluene (DNT)) in aqueous solution is developed. In this system, the self-assembled nanomicelles of commercial available Pluronic F127 are selected as vesicles and fluorescent conjugated polymers poly(9,9′-dioctylfluorene) (PFO) and poly(2,7-(9,9-hexylfluorene)-alt-4,4′-phenylether) (PFPE) are used as sensing materials. Through the microextraction effect of F127 nanomicelles, the hydrophobic conjugated polymers can be well dispersed in aqueous media and effectively quenched by trace amount of PA or DNT based on electron transfer mechanism. In compare with the conjugated polymers dissolved in organic solvents, the conjugated polymers encapsulated in F127 nanomicelles show dramatically enhanced sensing selectivity and sensitivity. The current nitroaromatic explosives sensing system is versatile. These results suggest that the F127/conjugated polymers system is a feasible method for detecting nitroaromatic explosives in water.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
