{Local|Nearby|Neighborhood|Regional} viscosity {change|alter|modify|adjust|transform} {in the|within the|inside the} thermal phase transition of a nematic liquid crystal, 5CB, has been analyzed by doping fluorescent viscosity probes, flapping fluorophores (FLAP) {as well as|in addition to|along with|and also|together with|and} a molecular rotor BODIPY-C12. {As a result|Consequently|Because of this}, only flapping anthraceneimide has {successfully|effectively} monitored a {small|little|tiny|modest|smaller|compact} viscosity {change|alter|modify|adjust|transform} (corresponding to {a few|a couple of|several|a number of|some|a handful of} cP (centipoise) {change|alter|modify|adjust|transform} in shear viscosity {around|about} 25 cP) {in the|within the|inside the} nematic-to-isotropic phase transition by ratiometric spectroscopy. {In addition|Additionally|Furthermore|Moreover|Also}, {analysis|evaluation} of fluorescence anisotropy indicates that the emissive species (planarized flapping anthraceneimides) are aligned parallel {to the|towards the|for the} director of 5CB {in the|within the|inside the} nematic phase. 1783407-55-5 custom synthesis 7-Bromo-4-methyl-2H-1,4-benzoxazin-3-one Chemical name PMID:23983589
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