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1 results

  • The Internal Structure of Macroporous Membranes and Transport of Surface-Modified Nanoparticles

  • Sang J. Lee, Kiwoong Kim, Sungsook Ahn
  • Journal:
    Microscopy and Microanalysis / Volume 21 / Issue 4 / August 2015
    Published online by Cambridge University Press:
    09 July 2015, pp. 936-945
    Print publication:
    August 2015

  • Understanding the morphological structure of membranes is essential to improve performance of membrane-based applications. In this paper, macroporous membranes were investigated and two methods introduced as an alternative for characterization of stereo-structure of the membranes. We combined the use of synchrotron X-ray nanotomography and small-angle X-ray scattering to examine the internal structure of cellulose acetate membranes with studies of the capture of surface-modified gold nanoparticles within these membranes. Finally, the morphological structures of macroporous membranes were visualized and their relationships with penetration tendency of surface-modified gold nanoparticles were explained.