A new chemosensor-based approach to the detection of nitrated aromatics such as TNT is described by J. S. Kim, J. Y. Lee et al. from the Sungkyunkwan University, Suwon, and the Korea University, Seoul, Republic of Korea.
Quantitative analysis of the fluorescence titration profile generated from the titration of a functionalized calixarene receptor with TNT provided evidence that this particular receptor allows for the detection of TNT down to the low ppb level in acetonitrile. This represents the first pyrene-based system that has been used for the fluorescence-based detection of nitroaromatic species.
It is hoped that its efficacy and mode of operation will guide the further development of chemosensors for these and other neutral analytes.
- Dipyrenylcalixarene – A Fluorescence-Based Chemosensor
for Trinitroaromatic Explosives
Y. H. Lee, H. Liu, J. Y. Lee, S. H. Kim, S. K. Kim, J. L. Sessler, Y. Kim, J. S. Kim,
Chem. Eur. J. 2010, 16 (20), 5895 – 5901.