Date of Original Version
Reported herein is the highly efficient quenching of fluorescent organic nanoparticles by 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT). These fluorescent nanoparticles are formed from the hydrophobic collapse of fluorescent polymer chains, and display quenching efficiencies that are in line with the highest reported literature values. Moreover, the fluorescent quenching occurs only for the fluorescent nanoparticles, and not for the precursor polymer solutions, which display marked insensitivity to the presence of nitroaromatics. This aggregation-dependent fluorescent quenching has numerous applications for the detection of small-molecule electron-deficient analytes.
Marks, Patrick, Sage Cohen, and Mindy Levine. "Highly Efficient Quenching of Nanoparticles for the Detection of Electron-Deficient Nitroaromatics." Journal of Polymer Science 51.19 (2013): 4150-4155.
Available at: http://dx.doi.org/10.1002/pola.26824