Alignment and Opening of Giant Lecithin Vesicles by Electric Fields

  title={Alignment and Opening of Giant Lecithin Vesicles by Electric Fields},
  author={Wolfgang Harbich},
AC electric fields ware applied to suspensions of giant lecithin vesicles observed under a phase contrast microscope. Elongated vesicles were found to align paral lel to the field. In sufficiently strong fields the vesicles opened at both ends and became cylinders which in some cases were immutable unde r fur ther increase of the field. The cylinder parameters can be used to calculate the edge energy of the cylinder wall. For the single bilayer we obtain 2 1 0 ~ 6 erg c m 1 . 


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