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)

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 cytochrom...

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Bibliographic Details
Published in:Nano letters 2002-09, Vol.2 (9), p.1021-1025
Main Authors: Hobara, Daisuke, Imabayashi, Shin-ichiro, Kakiuchi, Takashi
Format: Article
Language:English
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Summary: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).
ISSN:1530-6984
1530-6992
DOI:10.1021/nl0256863