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Journal of Fluorescence

, Volume 18, Issue 5, pp 835–841 | Cite as

Fluorescence Study of Lipid-based DNA Carriers Properties: Influence of Cationic Lipid Chemical Structure

  • Laure Burel-Deschamps
  • Mathieu Mével
  • Damien Loizeau
  • Farouk Ayadi
  • Jean-Jacques Yaouanc
  • Jean-Claude Clément
  • Paul-Alain Jaffrès
  • Philippe GiamarchiEmail author
Original Paper

Abstract

We report here a study on the physicochemical properties of cationic phospholipids liposomes used for lipoplex formulation and DNA transfer. The original cationic phospholipids synthesized in our laboratory are first presented with the liposome formulation process. The second part deals with the liposomes fusogenic properties studied by fluorescence resonant energy transfer (FRET). The nature of the cationic polar head and the formulation with or without a neutral colipid have a great influence on the FRET signal. The third part reports the study of the viscosity of the liposome by fluorescence anisotropy measurements. It has been observed that the vectors having a saturated lipid chain exhibit a more pronounced anisotropy than those having unsaturated lipid chains. Finally, liposomes formed by a mixture of phospholipids and DC-Chol (a rigid lipid) leads to increase the anisotropy denoting a more rigid liposome.

Keywords

Fluorescence FRET Anisotropy Cationic phospholipids Liposomes 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Laure Burel-Deschamps
    • 1
  • Mathieu Mével
    • 1
  • Damien Loizeau
    • 1
  • Farouk Ayadi
    • 1
  • Jean-Jacques Yaouanc
    • 1
  • Jean-Claude Clément
    • 1
  • Paul-Alain Jaffrès
    • 1
  • Philippe Giamarchi
    • 1
    Email author
  1. 1.CEMCA, UMR CNRS 6521 Chemistry DepartmentUniversity of BrestBrestFrance

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