Analysis of the structure and morphology of oligopeptide SAM using XPS and AFM

S. H. Song; K. M. Park; S. M. Chang; C. Nakamura; J. Miyake; W. S. Kim

doi:10.1080/15421400390263947

Analysis of the structure and morphology of oligopeptide SAM using XPS and AFM

S. H. Song, K. M. Park, S. M. Chang, C. Nakamura, J. Miyake, W. S. Kim

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Oligopeptides such as PSP1 (Tyr-Ala-Gly-Tyr-Cys) and PSP2 (His-Ala-Ser-Tyr-Ser-Cys), which interact strongly with a typical cationic porphyrin derivative, are synthesized. The structure and morphology of PSP1 and PSP2 monolayers self-assembled on Au surface have been investigated by using X-ray photo-electron spectroscopy (XPS) and atomic force microscope (AFM). XPS of the monolayers provides evidence that the primary adsorbate species are bonded to Au through the sulfur atom comprised in the species. It is revealed from XPS spectroscopy and AFM images that PSP2 is self-assembled better on Au surface than PSP1. This experimental result is well consistent with the prediction based on steric energies of Au-Peptide bond.

Original language	English
Pages (from-to)	135/[531]-140/[536]
Journal	Molecular Crystals and Liquid Crystals
Volume	407
Issue number	PART 3
DOIs	https://doi.org/10.1080/15421400390263947
Publication status	Published - 2003
Event	Proceedings of the 13th Korea-Japan Joint Forum on Organic Materials for Electronics and Photonics - Sendai, Japan Duration: 22 Oct 2002 → 24 Oct 2002

Keywords

AFM image
Oligopeptide
Porphyrin
Self-assembly
Steric energies
XPS spectroscopy

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10.1080/15421400390263947

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title = "Analysis of the structure and morphology of oligopeptide SAM using XPS and AFM",

abstract = "Oligopeptides such as PSP1 (Tyr-Ala-Gly-Tyr-Cys) and PSP2 (His-Ala-Ser-Tyr-Ser-Cys), which interact strongly with a typical cationic porphyrin derivative, are synthesized. The structure and morphology of PSP1 and PSP2 monolayers self-assembled on Au surface have been investigated by using X-ray photo-electron spectroscopy (XPS) and atomic force microscope (AFM). XPS of the monolayers provides evidence that the primary adsorbate species are bonded to Au through the sulfur atom comprised in the species. It is revealed from XPS spectroscopy and AFM images that PSP2 is self-assembled better on Au surface than PSP1. This experimental result is well consistent with the prediction based on steric energies of Au-Peptide bond.",

keywords = "AFM image, Oligopeptide, Porphyrin, Self-assembly, Steric energies, XPS spectroscopy",

author = "Song, {S. H.} and Park, {K. M.} and Chang, {S. M.} and C. Nakamura and J. Miyake and Kim, {W. S.}",

note = "Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; Proceedings of the 13th Korea-Japan Joint Forum on Organic Materials for Electronics and Photonics ; Conference date: 22-10-2002 Through 24-10-2002",

year = "2003",

doi = "10.1080/15421400390263947",

language = "English",

volume = "407",

pages = "135/[531]--140/[536]",

journal = "Molecular Crystals and Liquid Crystals",

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TY - JOUR

T1 - Analysis of the structure and morphology of oligopeptide SAM using XPS and AFM

AU - Song, S. H.

AU - Park, K. M.

AU - Chang, S. M.

AU - Nakamura, C.

AU - Miyake, J.

AU - Kim, W. S.

PY - 2003

Y1 - 2003

N2 - Oligopeptides such as PSP1 (Tyr-Ala-Gly-Tyr-Cys) and PSP2 (His-Ala-Ser-Tyr-Ser-Cys), which interact strongly with a typical cationic porphyrin derivative, are synthesized. The structure and morphology of PSP1 and PSP2 monolayers self-assembled on Au surface have been investigated by using X-ray photo-electron spectroscopy (XPS) and atomic force microscope (AFM). XPS of the monolayers provides evidence that the primary adsorbate species are bonded to Au through the sulfur atom comprised in the species. It is revealed from XPS spectroscopy and AFM images that PSP2 is self-assembled better on Au surface than PSP1. This experimental result is well consistent with the prediction based on steric energies of Au-Peptide bond.

AB - Oligopeptides such as PSP1 (Tyr-Ala-Gly-Tyr-Cys) and PSP2 (His-Ala-Ser-Tyr-Ser-Cys), which interact strongly with a typical cationic porphyrin derivative, are synthesized. The structure and morphology of PSP1 and PSP2 monolayers self-assembled on Au surface have been investigated by using X-ray photo-electron spectroscopy (XPS) and atomic force microscope (AFM). XPS of the monolayers provides evidence that the primary adsorbate species are bonded to Au through the sulfur atom comprised in the species. It is revealed from XPS spectroscopy and AFM images that PSP2 is self-assembled better on Au surface than PSP1. This experimental result is well consistent with the prediction based on steric energies of Au-Peptide bond.

KW - AFM image

KW - Oligopeptide

KW - Porphyrin

KW - Self-assembly

KW - Steric energies

KW - XPS spectroscopy

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U2 - 10.1080/15421400390263947

DO - 10.1080/15421400390263947

M3 - Conference article

AN - SCOPUS:10444233572

SN - 1058-725X

VL - 407

SP - 135/[531]-140/[536]

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

IS - PART 3

T2 - Proceedings of the 13th Korea-Japan Joint Forum on Organic Materials for Electronics and Photonics

Y2 - 22 October 2002 through 24 October 2002

ER -

Analysis of the structure and morphology of oligopeptide SAM using XPS and AFM

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Keywords

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