Magneto-electrical orientation of lipid-coated graphitic micro-particles in solution

  title={Magneto-electrical orientation of lipid-coated graphitic micro-particles in solution},
  author={Johnny Nguyen and Sonia Contera and Isabel Llorente Garcia},
  journal={RSC Advances},
We demonstrate, for the first time, confinement of the orientation of micron-sized graphitic flakes to a well-defined plane. We orient and rotationally trap lipid-coated highly ordered pyrolytic graphite (HOPG) micro-flakes in aqueous solution using a combination of uniform magnetic and AC electric fields and exploiting the anisotropic diamagnetic and electrical properties of HOPG. Measuring the rotational Brownian fluctuations of individual oriented particles in rotational traps, we… 
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