Abstract
The absorption, steady-state fluorescence and time-resolved fluorescence anisotropy of 1-palmitoyl-2-pyrenedecanoylphosphatidylcholine, PPDPC, were investigated in monomolecular Langmuir-Blodgett films using dipalmitoylphosphatidylcholine, DPPC, as a matrix. The absorption anisotropies were measured in 100 mol% PPDPC. The fluorescence anisotropy measurements were carried out with films containing 7.4 and 16.7 mol% of PPDPC and measured at 377 nm for the monomer and 470 nm for the excimer. The steady-state fluorescence anisotropy, r s, has been resolved into a fast decaying component, r f, and an infinitely slow decaying component, r ∞. The order parameter S of the systems and the limiting angle between the absorption and emission transition moments have been determined.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
