Lipid membrane rigidity from fluctuation measurement in nm scale

ORAL

Abstract

Thermal fluctuation of giant unilamellar phospholipids vesicles(GUVs) was observed by a forward laser beam scattering of a laser beam from the vesicle edge. This technique, owing to the refractive index mismatch, offers nanometer spatial and microsecond temporal resolution of membrane position. When nanoparticles adsorb on the membrane, this membrane fluctuation changes. We will discuss the changes of membrane rigidity caused by nanoparticles, based on membrane fluctuation data.

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Authors

  • Sung Chul Bae

    U of Illinois Urbana-Champaign, Department of Materials Science and Engineering, University of Illinois

  • Bo Wang

    U of Illinois Urbana-Champaign, Department of Materials Science and Engineering, University of Illinois

  • Chang-Ki Min

    Department of Materials Science and Engineering, University of Illinois

  • Steve Granick

    University of Illinois, Department of Materials Science and Engineering, University of Illinois, University of Illinois, Department of Materials Science and Engineering, U of Illinois Urbana-Champaign, University of Illinois at Urbana Champaign, Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, University of Illinois, Urbana Champaign