Amide-based diarylmaleimide derivatives and polymers: Highly selective and ratiometric fluorescence sensing for anions

Sensitive water-soluble fluorescent chemosensor for chloride based on a bisquinolinium pyridine-dicarboxamide compound

“…Artificial biomimetic receptors containing amide and urea groups as anion recognition sites constitute one of the largest sub-groups in this field (Asthana et al, 2013;Chang et al, 2015;Ge et al, 2014;Kubik et al, 2005;Lin et al, 2015;Pinter et al, 2013;Warwick et al, 2013;White and Beer, 2013;White et al, 2014, Warwick et al, 2013. Chloride recognition with these systems is mostly achieved by hydrogen bonding interactions, which in many cases are not strong enough to overcome the high energy of hydration (ΔG = -340 kJ/mol) besides the fact that water molecules efficiently compete for the binding sites (Butler and Parker, 2013;Kubik, 2010).…”

Host–guest-recognition-based polymer brush-functionalized mesoporous silica nanoparticles loaded with conjugated polymers: A facile FRET-based ratiometric probe for Hg 2+

“…On the other hand, ratiometric measurement uses the ratio of two fluorescent peaks instead of the absolute intensity of one peak, which can eliminate the adverse effects on fluorescence signals and give greater precision to the data analysis relative to single-channel detection [42]. Conventionally, the FRET-based sensing systems have been designed in the form of small-molecular dyads which contain two fluorophores connected by a spacer through covalent links [43][44][45][46]. On the other hand, the FRET systems can also be constructed by the particles, such as quantum dots [47,48], silica [49][50][51] and polymer particles [52].…”

Carbazole-based diphenyl maleimides: Multi-functional smart fluorescent materials for data process and sensing for pressure, explosive and pH

“…[37e40] and anion sensing [41,42] for their good performance in luminescence. However, due to the interaction of dipole-dipole and p-p stacking, most of arylmaleimides show stronger fluorescence in solution than in solids.…”