Observation of ordered arrays of adsorbed lysozyme by scanning tunneling microscopy

Takahiro Yamaguchi, Tadahiro Komeda

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The lysozyme film formed on a Au(111) surface was observed at a molecular resolution by scanning tunneling microscopy (STM). The flat domains of this film was obtained by dipping the Au(111) surface into lysozyme solution (4μg/ml, pH = 4.5 and room temperature) for 4 h. We observed a clear image of the stripes formed by lysozyme molecules. Two types of ordered stripes were confirmed. One was a simple stripe with a gap of 4.6 nm, and the other was a paired stripe with the periodicity of the pair is 6.2 nm. The latter case could be explained with a periodic bond chain model of the (110) surface of a lysozyme crystal.

    Original languageEnglish
    Pages (from-to)2349-2352
    Number of pages4
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume45
    Issue number3 B
    DOIs
    Publication statusPublished - 2006 Mar 27

    Keywords

    • Biomolecule
    • Crystal
    • Film
    • Lysozyme
    • Protein
    • Scanning tunneling microscopy
    • Tetragonal

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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