Porous Particles: Controlling Molecular Diffusion within Metal-Organic Frameworks

ORAL

Abstract

Systematic investigation of molecular diffusion under nanoconfinement is carried out utilizing pore tunability of ionic metal-organic frameworks (MOFs). The translational and rotational diffusion of specially-selected guest dyes is evaluated by fluorescence correlation microscopy (FCS). A curious novel technique is demonstrated of controlling diffusion by switching counterions. Systematically, this study provides generalizable examples of how pore size, guest size, and host-guest interaction affect diffusion within nanopores.

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Authors

  • Ah-Young Jee

    University of Illinois, Urbana-Champaign, University of Illinois at Urbana-Champaign

  • Melinda Sindoro

    University of Illinois, Urbana-Champaign, University of Illinois at Urbana-Champaign

  • Steve Granick

    Univ of Illinois - Urbana, University of Illinois at Champaign-Urbana, University of Illinois, Urbana-Champaign, University of Illinois Urbana-Champaign, University of Illinois at Urbana-Champaign, Departments of Materials Science and Engineering, Chemistry, Physics, University of Illinois