Preferential Adsorption of Horse Heart Cytochrome c on Nanometer-Scale Domains of a Phase-Separated Binary Self-Assembled Monolayer of 3-Mercaptopropionic Acid and 1-Hexadecanethiol on Au(111)

Daisuke Hobara, Shinichiro Imabayashi, Takashi Kakiuchi

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Cytochrome c preferentially adsorbs on the nanometer-scale 3-mercaptopropionic acid (MPA) domains of the phase-separated binary self-assembled monolayers (SAMs) of MPA and 1-hexadecanethiol on Au(111), which has been imaged by scanning tunneling microscopy (STM). The amount of the adsorbed cytochrome c estimated by STM increases with increasing the ratio of MPA of the binary SAMs and agrees well with that estimated by cyclic voltammetry of the cytochrome c-adsorbed Au(111).

Original languageEnglish
Pages (from-to)1021-1025
Number of pages5
JournalNano Letters
Issue number9
Publication statusPublished - 2002 Sep
Externally publishedYes


ASJC Scopus subject areas

  • Materials Science(all)

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