Observation of ordered arrays of adsorbed lysozyme by scanning tunneling microscopy

Takahiro Yamaguchi, Tadahiro Komeda

Research output: Contribution to journalArticle

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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