Time-Resolved Fluorescence Depolarization Study Of Lamellar To Inverted Cylindrical Micellar Phase

Kwan Hon Cheng

doi:10.1117/12.951553

17 May 1989 Time-Resolved Fluorescence Depolarization Study Of Lamellar To Inverted Cylindrical Micellar Phase

Kwan Hon Cheng

Proceedings Volume 1054, Fluorescence Detection III; (1989) https://doi.org/10.1117/12.951553
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The orientational order and rotational dynamics of 2-(3-(diphenyl-hexatrienyl) propanoy11-3-palmitoyl-L-a-phosphatidylcholine (DPH-PC) embedded in dioleoplphosphatidylethanolamine (DOPE) were studied by time-resolved fluorescence depolarization technique. Upon increasing the temperature, the wobbling diffusion constant D⊥ of DPH-PC was found to decrease at the lamellar (Lα) to inverted cylindrical (HII) phase transition (12°C). The calculated ratio of order parameter in the La phase to that in the HII phase was close to the theoretical value of 2.0 as predicted from the change in packing symmetry. The effects of butylated hydroxytoluene, cholesterol and phosphatidylchollne on this phase transition were also examined.

Citation Download Citation

Kwan Hon Cheng "Time-Resolved Fluorescence Depolarization Study Of Lamellar To Inverted Cylindrical Micellar Phase", Proc. SPIE 1054, Fluorescence Detection III, (17 May 1989); https://doi.org/10.1117/12.951553

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