2004
DOI: 10.1080/10610270412331283583
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Fluorescence Enhancement of Curcumin upon Inclusion into Cucurbituril

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Cited by 87 publications
(49 citation statements)
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“…Effective polarity experienced by the guest inside CBs has been previously investigated by using fluorescence enhancement of cucurmin and comparing with that in common organic solvents. [29,30] To illustrate the influence that the presence of CBs plays in the visible absorption, Figure 3 shows a photograph in which the visual changes, occurring upon addition of CBs to some of the dyes, can be clearly seen. Under the conditions in which the photograph is taken, vials 1, 4 and 7 correspond to the equilibrium monomer/aggregate, while according to the dimensions of the CBs, vials 2, 5 and 8 correspond to the CB [7] encapsulated monomeric dye, and vials 3, 6 and 9 correspond to CB [8] encapsulated aggregates.…”
Section: To 10mentioning
confidence: 99%
“…Effective polarity experienced by the guest inside CBs has been previously investigated by using fluorescence enhancement of cucurmin and comparing with that in common organic solvents. [29,30] To illustrate the influence that the presence of CBs plays in the visible absorption, Figure 3 shows a photograph in which the visual changes, occurring upon addition of CBs to some of the dyes, can be clearly seen. Under the conditions in which the photograph is taken, vials 1, 4 and 7 correspond to the equilibrium monomer/aggregate, while according to the dimensions of the CBs, vials 2, 5 and 8 correspond to the CB [7] encapsulated monomeric dye, and vials 3, 6 and 9 correspond to CB [8] encapsulated aggregates.…”
Section: To 10mentioning
confidence: 99%
“…Curcumin can act as an ideal molecular probe to understand the physicochemistry of membranes because of the dependence of its fluorescence on the polarity of the surrounding environment 54,55 . Since the stability of curcumin depends on the pH of the medium 9,56 , its fluorescence spectra were also recorded at different pH levels Fig.…”
Section: Steady State Uorescence Spectroscopic Studiesmentioning
confidence: 99%
“…Este tipo de estudo já tem sido realizado com outros hospedeiros de inclusão, como as ciclodextrinas ou ainda os calixarenos [129][130][131] , mas por serem melhores hospedeiros que as ciclodextrinas e calixarenos e por apresentarem cavidades mais regulares que as destes compostos, obtêm-se melhoras mais significativas com os cucurbitandos. Muitos trabalhos ilustram estes fatores, como é o caso da curcumina e as 1 e 2-anilinonaftaleno-6-sulfonatos em CBn estudadas por Wagner e colaboradores 132 , além de outros fluoróforos 55,126,130,133,134 . Utilizando esta propriedade, Nau et al conseguiram aumentar significativamente a estabilidade do 2,3-diazabiciclo[2.2.2]oct-2-eno (DBO) frente a supressores externos, para aplicações em biofluoroensaios 22,124,133,135 .…”
Section: Os Cucurbitandos Em Remediação Ambiental E Em Química Analíticaunclassified