Gw. Li et al., STUDIES ON EXCITATION-ENERGY TRANSFER OF COMPLETELY SYNTHESIZED BILAYER-MEMBRANE CONTAINING BIPHENYL MOIETY, Gaodeng xuexiao huaxue xuebao, 19(2), 1998, pp. 257-260
Intermolecular excitation energy transfer has been investigated in the
binary mixture system mediated by completely synthesized bilayer memb
rane containing biphenyl moiety(DBBTAB). The donor, a biphenyl group,
was embeded in the interior of the bilayer membrane, The acceptor, flu
orescein sodium salt, two negatively charged polar groups, was attract
ed electrostatically to the positively charged surface of the DBBTAB v
esicles. The efficiency of the energy transfer was found to be good. F
luorescein quenched the fluorescence intensity of the biphenyl, which
fitted a Stern-Volmer relationship over the concentration ranges of 0
similar to 8X10(-5) mol/L. The functionallization of the vesicles in t
he energy transfer was explored, and energy transfer mechanism was dis
cussed too, Furthermore, energy transfer from the fluorescein donor to
tetraphenylporphyrin sulfated sodium acceptor, was also observed in t
he same system. The energy transfer improved light efficiency and exte
nded the spectral region. The experiment results imply that the DBBTAB
vesicle is better media for energy transfer in dye laser and good mem
brane mimic agent.