Kalva, Nagendra; Tran, Chinh Hoang; Lee, Min Woong; Augustine, Rimesh; Lee, Soo Jeong; Kim, Il published the artcile< Aggregation-induced emission-active hyperbranched polymers conjugated with tetraphenylethylene for nitroaromatic explosive detection>, Reference of 184239-35-8, the main research area is fluorescence aggregate nitroarom explosive detection solid state sensor.
This work develops a facile synthesis for aggregation-induced emission (AIE)-active hyperbranched polyglycidols (HPGs) to design a solid-state sensor for detecting nitroarom. explosives. The tetraphenylethylene moieties were conjugated onto the periphery of the HPGs in a single step using dynamic boronate ester cross-linkers. The resulting AIE-active HPGs exhibited excellent AIE characteristics in THF (THF)/H2O mixtures, emitting a strong blue fluorescence under UV irradiation Dynamic light scattering and transmission electron microscopic analyses demonstrated that the self-assembled nanosized aggregates were stable in the THF/H2O mixture The fluorescence of the aggregates was dramatically quenched by various nitro compounds, including 2,4,6-trinitrophenol (or picric acid; PA), 2,6-dinitrophenol, 4-nitrophenol, 4-nitrotoluene, and nitromethane. The nano-aggregates exhibited extraordinary sensitivity towards PA, with a Stern-Volmer constant (Ksv) of 2.27 x 104 M-1 and a limit of detection of 40 ppb. Paper strips encapsulating the aggregates exhibited a vivid visual quenching, promising the practical applicability of these polymers as solid-state sensors for the detection of nitroarom. explosives.
Dyes and Pigments published new progress about Aggregates. 184239-35-8 belongs to class bromides-buliding-blocks, and the molecular formula is C26H18Br2, Reference of 184239-35-8.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary