Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10825109 | Journal of Biochemical and Biophysical Methods | 2005 | 18 Pages |
Abstract
We report on the synthesis by coupling of a triterpenoid oleanolic acid with 4â²-diethylamino-3-hydroxyflavone (FE) to produce an environment-sensitive biomembrane probe with two-band ratiometric response in fluorescence emission. The synthesized compound (probe FOT) was tested in a series of model solvents and demonstrated the response to solvent polarity and intermolecular hydrogen bonding very similar to that of parent probe FE. Meantime when incorporated into lipid bilayer membranes, it showed new features differing in response between lipids of different surface charges as well as between glycerophospholipids and sphingomyelin. We observed that in the conditions of coexistence of rafts and non-raft structures the probe is excluded from the rafts.
Keywords
Related Topics
Life Sciences
Biochemistry, Genetics and Molecular Biology
Biochemistry
Authors
Zeynep Turkmen, Andrey S. Klymchenko, Sule Oncul, Guy Duportail, Gulacti Topcu, Alexander P. Demchenko,