Excited state electric dipole moment of nile blue and brilliant cresyl blue: A comparative study

Probing the heterogeneity of molecular level organization of ionic liquids: a comparative study using neutral Nile red and cationic Nile blue sulfate as fluorescent probes for butyrolactam-based protic ionic liquids

“…A similar behavior has been observed for Nile blue, as reported by Gilani and co-workers. 58 Douhal et al noted the coexistence of both neutral basic form (Chart 2(b)) and acidic cationic form (Chart 2(a)) of Nile blue perchlorate depending on the change in solvent from polar aprotic to polar protic. Their results revealed that the acidic cationic form exhibits maximum absorption within the 627–647 nm range and emission within the 632–683 nm spectral region.…”

A modified fluorescent sensor for reporting glucose concentration in the airway lumen

“…Nile blue bound to E149C/A213R GBP did not exhibit a change in fluorescence in response to glucose. Nile blue can produce strong dipole moments depending on the polarity of its surroundings making it a good environmentally sensitive dye [ 22 ]. Whilst Nile Blue had been shown to exhibit a change in fluorescence when bound to a different GBP mutant, this and our previous data indicate that long wavelength fluorophores bound to GBP consistently exhibit F max /F 0 that currently are too low to be of practical use in the measurement of ASL glucose [ 18 , 23 ].…”

“…Human bronchiolar epithelial cells HBECs were obtained by the UNC Marsico Tissue Culture Core from endobronchial brushings or extracted from explanted normal lungs as previously described. Human Subject Research Ethical approvals were granted by The University of North Carolina at Chapel Hill Biomedical Institutional Review Board (protocol #03–1396) [ 22 ]. H441 and HBEC were transferred onto transwell permeable supports (Costar) and grown at air-liquid-interface (ALI) to form confluent monolayers as previously described [ 10 ].…”

Advanced Organic Transistor-Based Sensors Utilizing a Solvatochromic Medium with Twisted Intramolecular Charge-Transfer Behavior and Its Application to Ammonia Gas Detection

“…The analyzed absorption peak positions for the NR solutions according to the various solvents were corresponded with polarity of the solvent noted by Reichardt polarity function (E T (30)) depending on the molecular structure. [1][2][3] (See Table S1 in the Supporting Information) That is, these results suggest that the TICT characteristics of the NR molecule are strongly influenced by E T (30).…”