FLUORESCENCE MICROSCOPY OBSERVATIONS OF DOMAIN-STRUCTURES IN LANGMUIRMONOLAYERS OF N-STEAROYLSERINE METHYL-ESTER AND N-STEAROYLVALINE AT INTERMEDIATE ENANTIOMERIC COMPOSITIONS
Dp. Parazak et al., FLUORESCENCE MICROSCOPY OBSERVATIONS OF DOMAIN-STRUCTURES IN LANGMUIRMONOLAYERS OF N-STEAROYLSERINE METHYL-ESTER AND N-STEAROYLVALINE AT INTERMEDIATE ENANTIOMERIC COMPOSITIONS, Chemistry and physics of lipids, 75(2), 1995, pp. 155-161
Langmuir monolayers of N-stearoylvaline and N-stearoylserine methyl es
ter were studied at compositions intermediate between the racemic and
the purely enantiomeric using surface pressure isotherm measurements a
nd fluorescence microscopy observations. The transition pressure was f
ound to vary smoothly with composition for both compounds. Curved dend
ritic forms were observed at intermediate compositions, indicating an
anisotropy in the line tension. A novel crossover from dendritic to cu
rved domain morphology at slower domain growth rate is reported for th
e films of enantiomeric N-stearoylserine methyl ester.