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Volumn 26, Issue 18, 2010, Pages 14723-14729

Phase-dependent lateral diffusion of α-tocopherol in DPPC liposomes monitored by fluorescence quenching

Author keywords

[No Author keywords available]

Indexed keywords

ABSOLUTE VALUES; AMPHIPHILICS; APPARENT ACTIVATION ENERGY; BIEXPONENTIAL; CONTROLLED DYNAMICS; DIPALMITOYL-SN-GLYCERO-3-PHOSPHOCHOLINE; DPPC LIPOSOME; FLUORESCENCE QUENCHING; GEL PHASIS; HIGH RATE; LATERAL DIFFUSION; LIQUID-CRYSTALLINE; LIQUID-CRYSTALLINE PHASE; PHASE TRANSITION TEMPERATURES; RIPPLE PHASE; SATURATED LIPIDS; SELF-DIFFUSION; TEMPERATURE DEPENDENT; TEMPERATURE RANGE; TEMPERATURE REGIMES;

EID: 77956605291     PISSN: 07437463     EISSN: 15205827     Source Type: Journal    
DOI: 10.1021/la101915x     Document Type: Article
Times cited : (15)

References (80)
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    • Zürich, Switzerland
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    • QuantumSoft 6.0.3
  • 53
    • 0022553395 scopus 로고
    • The amounts of ethanol employed in all liposome preparations were kept constant throughout all experiments, they were the same as those used in our previous investigations (refs 22 and 37, to allow direct comparison), and they were kept sufficiently small, as circumstantially evidenced by the unaltered main phase transition temperature, to exclude major effects on lipid structure and fluidity; see ref 22 and
    • The amounts of ethanol employed in all liposome preparations were kept constant throughout all experiments, they were the same as those used in our previous investigations (refs 22 and 37, to allow direct comparison), and they were kept sufficiently small, as circumstantially evidenced by the unaltered main phase transition temperature, to exclude major effects on lipid structure and fluidity; see ref 22 and Almeida, L. M.; Vaz, W. L. C.; Stümpel, J.; Madeira, V. M. C. Biochemistry 1986, 25, 4832-4839
    • (1986) Biochemistry , vol.25 , pp. 4832-4839
    • Almeida, L.M.1    Vaz, W.L.C.2    Stümpel, J.3    Madeira, V.M.C.4
  • 57
    • 77956576616 scopus 로고    scopus 로고
    • Earlier investigations on monolayers have shown an excellent miscibility of our fluorescent probe with lipids (ref 24), with no indications for nonhomogeneous distributions, demixing, or effects on structural integrity. In particular, the monoexponential fluorescence decay behavior in the absence of quencher and the fact that the lifetime was independent of the probe concentration clearly speak for a homogeneous distribution of probe molecules in the liquid-crystalline phase
    • Earlier investigations on monolayers have shown an excellent miscibility of our fluorescent probe with lipids (ref 24), with no indications for nonhomogeneous distributions, demixing, or effects on structural integrity. In particular, the monoexponential fluorescence decay behavior in the absence of quencher and the fact that the lifetime was independent of the probe concentration clearly speak for a homogeneous distribution of probe molecules in the liquid-crystalline phase.
  • 58
    • 77956603127 scopus 로고    scopus 로고
    • The fact that the fluorescence lifetimes remain apparently biexponential (with components of ca. 330 and 130 ns) in the solid-gel phase, i.e., below 30 °C, is presently not understood, but it could be due to a variety of reasons, including a different composition of the frozen-out ripples or differences between the inner and outer leaflets of the liposome
    • The fact that the fluorescence lifetimes remain apparently biexponential (with components of ca. 330 and 130 ns) in the solid-gel phase, i.e., below 30 °C, is presently not understood, but it could be due to a variety of reasons, including a different composition of the frozen-out ripples or differences between the inner and outer leaflets of the liposome.
  • 59
    • 27644481090 scopus 로고    scopus 로고
    • Photoreactivity of n,π-Excited Azoalkanes and Ketones
    • Ramamurthy, V.; Schanze, K., Eds.; CRC Press: Boca Raton, FL
    • Nau, W. M.; Pischel, U. Photoreactivity of n,π-Excited Azoalkanes and Ketones. In Organic Photochemistry and Photophysics; Ramamurthy, V.; Schanze, K., Eds.; CRC Press: Boca Raton, FL, 2005; Vol. 14, p 75.
    • (2005) Organic Photochemistry and Photophysics , vol.14 , pp. 75
    • Nau, W.M.1    Pischel, U.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.