Two-dimensional cysteine and cystine cluster networks on Au(111) disclosed by voltammetry and in situ scanning tunneling microscopy

Jingdong Zhang, Qijin Chi, Jens U. Nielsen, Esben P. Friis, Jens E.T. Andersen, Jens Ulstrup

Research output: Contribution to journalArticle

182 Citations (Scopus)

Abstract

Microscopic structures for molecular monolayers of L-cystein and L-cystein assembled on Au(111) have been disclosed by employing electrochemistry and in situ scanning tunneling (STM). High-resolution STM images show that the adlayers of both cyteine and cystine exhibit highly-ordered networklike clusters with (3√3 × 6)R30° structure. By combining the surface coverage estimated from voltammetric data, each cluster is demonstrated to include six individual cysteine molecules or three cystine molecules. As a comparison, no cluster structure is observed for the 1-butanethiol adlayer prepared and examined under the same conditions as those for cysteine and cystine. This suggests that intermolecular and intramolecular hydrogen bonds among adsorbed cysteine or cystine molecules could be responsible for the origin of the cluster-network structures for the adlayers. Several models are proposed and used to explain the in situ STM observations in detail.

Original languageEnglish
Pages (from-to)7229-7237
Number of pages9
JournalLangmuir
Volume16
Issue number18
DOIs
Publication statusPublished - Sep 5 2000

Fingerprint

Cystines
Cystine
cysteine
Scanning tunneling microscopy
Voltammetry
Cysteine
scanning tunneling microscopy
Molecules
molecules
Electrochemistry
electrochemistry
Image resolution
Monolayers
Hydrogen bonds
hydrogen bonds
Scanning
scanning
high resolution

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Zhang, Jingdong ; Chi, Qijin ; Nielsen, Jens U. ; Friis, Esben P. ; Andersen, Jens E.T. ; Ulstrup, Jens. / Two-dimensional cysteine and cystine cluster networks on Au(111) disclosed by voltammetry and in situ scanning tunneling microscopy. In: Langmuir. 2000 ; Vol. 16, No. 18. pp. 7229-7237.
@article{dcc52aaca4354ebdaebc1e4e1ceea9e8,
title = "Two-dimensional cysteine and cystine cluster networks on Au(111) disclosed by voltammetry and in situ scanning tunneling microscopy",
abstract = "Microscopic structures for molecular monolayers of L-cystein and L-cystein assembled on Au(111) have been disclosed by employing electrochemistry and in situ scanning tunneling (STM). High-resolution STM images show that the adlayers of both cyteine and cystine exhibit highly-ordered networklike clusters with (3√3 × 6)R30° structure. By combining the surface coverage estimated from voltammetric data, each cluster is demonstrated to include six individual cysteine molecules or three cystine molecules. As a comparison, no cluster structure is observed for the 1-butanethiol adlayer prepared and examined under the same conditions as those for cysteine and cystine. This suggests that intermolecular and intramolecular hydrogen bonds among adsorbed cysteine or cystine molecules could be responsible for the origin of the cluster-network structures for the adlayers. Several models are proposed and used to explain the in situ STM observations in detail.",
author = "Jingdong Zhang and Qijin Chi and Nielsen, {Jens U.} and Friis, {Esben P.} and Andersen, {Jens E.T.} and Jens Ulstrup",
year = "2000",
month = "9",
day = "5",
doi = "10.1021/la000246h",
language = "English",
volume = "16",
pages = "7229--7237",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "18",

}

Two-dimensional cysteine and cystine cluster networks on Au(111) disclosed by voltammetry and in situ scanning tunneling microscopy. / Zhang, Jingdong; Chi, Qijin; Nielsen, Jens U.; Friis, Esben P.; Andersen, Jens E.T.; Ulstrup, Jens.

In: Langmuir, Vol. 16, No. 18, 05.09.2000, p. 7229-7237.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Two-dimensional cysteine and cystine cluster networks on Au(111) disclosed by voltammetry and in situ scanning tunneling microscopy

AU - Zhang, Jingdong

AU - Chi, Qijin

AU - Nielsen, Jens U.

AU - Friis, Esben P.

AU - Andersen, Jens E.T.

AU - Ulstrup, Jens

PY - 2000/9/5

Y1 - 2000/9/5

N2 - Microscopic structures for molecular monolayers of L-cystein and L-cystein assembled on Au(111) have been disclosed by employing electrochemistry and in situ scanning tunneling (STM). High-resolution STM images show that the adlayers of both cyteine and cystine exhibit highly-ordered networklike clusters with (3√3 × 6)R30° structure. By combining the surface coverage estimated from voltammetric data, each cluster is demonstrated to include six individual cysteine molecules or three cystine molecules. As a comparison, no cluster structure is observed for the 1-butanethiol adlayer prepared and examined under the same conditions as those for cysteine and cystine. This suggests that intermolecular and intramolecular hydrogen bonds among adsorbed cysteine or cystine molecules could be responsible for the origin of the cluster-network structures for the adlayers. Several models are proposed and used to explain the in situ STM observations in detail.

AB - Microscopic structures for molecular monolayers of L-cystein and L-cystein assembled on Au(111) have been disclosed by employing electrochemistry and in situ scanning tunneling (STM). High-resolution STM images show that the adlayers of both cyteine and cystine exhibit highly-ordered networklike clusters with (3√3 × 6)R30° structure. By combining the surface coverage estimated from voltammetric data, each cluster is demonstrated to include six individual cysteine molecules or three cystine molecules. As a comparison, no cluster structure is observed for the 1-butanethiol adlayer prepared and examined under the same conditions as those for cysteine and cystine. This suggests that intermolecular and intramolecular hydrogen bonds among adsorbed cysteine or cystine molecules could be responsible for the origin of the cluster-network structures for the adlayers. Several models are proposed and used to explain the in situ STM observations in detail.

UR - http://www.scopus.com/inward/record.url?scp=0034275644&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034275644&partnerID=8YFLogxK

U2 - 10.1021/la000246h

DO - 10.1021/la000246h

M3 - Article

VL - 16

SP - 7229

EP - 7237

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 18

ER -