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Visualizing single-molecule diffusion in mesoporous materials

Author

Listed:
  • Andreas Zürner

    (University of Munich, Butenandtstrasse 5-13 (E), D-81377 Munich, Germany)

  • Johanna Kirstein

    (University of Munich, Butenandtstrasse 5-13 (E), D-81377 Munich, Germany)

  • Markus Döblinger

    (University of Munich, Butenandtstrasse 5-13 (E), D-81377 Munich, Germany)

  • Christoph Bräuchle

    (University of Munich, Butenandtstrasse 5-13 (E), D-81377 Munich, Germany)

  • Thomas Bein

    (University of Munich, Butenandtstrasse 5-13 (E), D-81377 Munich, Germany)

Abstract

Guest appearance Materials with mesoscale pores (that is, with diameters of several hundred nanometres) have many potential applications — including storage, separation and catalytic conversion — most of which depend on the diffusion of 'guest' molecules through the pores. Yet no method existed to correlate the guests' motion with the structure of the material. This looks set to change with the development of a technique combining electron microscopy with optical single-molecule tracking to visualize molecular diffusion in a mesoporous material. For the first time, guest molecules (dyes in this case) can be 'seen' changing speed or direction in response to structural features of the host on a nanometre scale. This opens the way to a deeper understanding of the properties of mesoporous solids.

Suggested Citation

  • Andreas Zürner & Johanna Kirstein & Markus Döblinger & Christoph Bräuchle & Thomas Bein, 2007. "Visualizing single-molecule diffusion in mesoporous materials," Nature, Nature, vol. 450(7170), pages 705-708, November.
    • Handle: RePEc:nat:nature:v:450:y:2007:i:7170:d:10.1038_nature06398
    DOI: 10.1038/nature06398
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    Cited by:

    1. Tanmoy Maity & Susmita Sarkar & Susmita Kundu & Suvendu Panda & Arighna Sarkar & Raheel Hammad & Kalyaneswar Mandal & Soumya Ghosh & Jagannath Mondal & Ritesh Haldar, 2024. "Steering diffusion selectivity of chemical isomers within aligned nanochannels of metal-organic framework thin film," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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