New insight into probe-location dependent polarity and hydration at lipid/water interfaces: comparison between gel- and fluid-phases of lipid bilayers
作者:Moirangthem Kiran Singh、Him Shweta、Mohammad Firoz Khan、Sobhan Sen
DOI:10.1039/c6cp01201a
日期:——
2-dipalmitoyl-sn-glycero-3-phosphocholine) bilayer at room temperature, which was not anticipated in earlier studies. However, the same molecules probe only a subtle but continuous polarity change at the interface of water and the fluid-phase (Lα) DOPC (1,2-dioleoyl-sn-glycero-3-phosphocholine) bilayer at room temperature. Fluorescence quenching experiments indicate that solutes with different log P values adsorb
Hydrophobicity-induced aggregation of N-alkyl-4-aminophthalimides in aqueous media probed by solvatochromic fluorescence
作者:G. Saroja、A. Samanta
DOI:10.1039/a804631j
日期:——
The fluorescence response of a series of n-alkanes of different chain length, all labelled with an environmentally sensitive fluorophore, is reported in aqueous media. It is shown that solvent-sensitive fluorescence properties of 4-aminophthalimide allow one to monitor subtle changes in the microenvironment of the fluorophore resulting from aggregation or self-coiling of the molecules. A new fluorescence that is observed in aqueous media for the higher homologues of the series has been unambiguously assigned to the aggregates of the molecules.