Stereodifferentiation in fluorescence quenching within cholic acid aggregates

Cuquerella, M Consuelo; Rohacova, Jana; Marin, M Luisa; Miranda, Miguel A.

Stereodifferentiation in fluorescence quenching within cholic acid aggregates

2010

Cuquerella, M Consuelo | Rohacova, Jana | Marin, M Luisa | Miranda, Miguel A.

Two cholic acid (ChA) analogues, containing a 4-nitrobenzo-2-oxa-1,3-diazole (NBD) moiety at C-3, were incorporated into ChA aggregates and submitted to fluorescence quenching by the two enantiomers of several tryptophan derivatives. In all cases, a significant stereodifferentiation was observed; the most remarkable effect was found when comparing the 3α and the 3β diastereomers.

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