Nanophase Segregation of Self-Assembled Monolayers on Gold Nanoparticles

Publication type:
Journal article
Metadata:
Autoren
  • Santosh Kumar Meena
  • Claire Goldmann
  • Douga Nassoko
  • Mahamadou Seydou
  • Thomas Marchandier
  • Simona Moldovan
  • Ovidiu Ersen
  • Francois Ribot
  • Corinne Chaneac
  • Clement Sanchez
  • David Portehault
  • Frederik Tielens
  • Marialore Sulpizi
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000406649700086&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1021/acsnano.7b03616
eISSN
1936-086X
Externe Identifier
  • Clarivate Analytics Document Solution ID: FC2EI
  • PubMed Identifier: 28613838
ISSN
1936-0851
Ausgabe der Veröffentlichung
7
Zeitschrift
ACS NANO
Schlüsselwörter
  • Janus particles
  • gold nanoparticles
  • molecular dynamics
  • density functional theory
  • self-assembled monolayer
Paginierung
7371 - 7381
Datum der Veröffentlichung
2017
Status
Published
Titel
Nanophase Segregation of Self-Assembled Monolayers on Gold Nanoparticles
Sub types
  • Article
Ausgabe der Zeitschrift
11

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
  • Santosh Kumar Meena
  • Claire Goldmann
  • Douga Nassoko
  • Mahamadou Seydou
  • Thomas Marchandier
  • Simona Moldovan
  • Ovidiu Ersen
  • François Ribot
  • Corinne Chanéac
  • Clément Sanchez
  • David Portehault
  • Frederik Tielens
  • Marialore Sulpizi
DOI
10.1021/acsnano.7b03616
eISSN
1936-086X
ISSN
1936-0851
Ausgabe der Veröffentlichung
7
Zeitschrift
ACS Nano
Sprache
en
Online publication date
2017
Paginierung
7371 - 7381
Datum der Veröffentlichung
2017
Status
Published
Herausgeber
American Chemical Society (ACS)
Herausgeber URL
http://dx.doi.org/10.1021/acsnano.7b03616
Datum der Datenerfassung
2021
Titel
Nanophase Segregation of Self-Assembled Monolayers on Gold Nanoparticles
Ausgabe der Zeitschrift
11

Data source: Crossref

Abstract
Nanophase segregation of a bicomponent thiol self-assembled monolayer is predicted using atomistic molecular dynamics simulations and experimentally confirmed. The simulations suggest the formation of domains rich in acid-terminated chains, on one hand, and of domains rich in amide-functionalized ethylene glycol oligomers, on the other hand. In particular, within the amide-ethylene glycol oligomers region, a key role is played by the formation of interchain hydrogen bonds. The predicted phase segregation is experimentally confirmed by the synthesis of 35 and 15 nm gold nanoparticles functionalized with several binary mixtures of ligands. An extensive study by transmission electron microscopy and electron tomography, using silica selective heterogeneous nucleation on acid-rich domains to provide electron contrast, supports simulations and highlights patchy nanoparticles with a trend toward Janus nano-objects depending on the nature of the ligands and the particle size. These results validate our computational platform as an effective tool to predict nanophase separation in organic mixtures on a surface and drive further exploration of advanced nanoparticle functionalization.
Addresses
  • Institute of Physics, Johannes Gutenberg University Mainz , Staudingerweg 7, 55099 Mainz, Germany.
Autoren
  • Santosh Kumar Meena
  • Claire Goldmann
  • Douga Nassoko
  • Mahamadou Seydou
  • Thomas Marchandier
  • Simona Moldovan
  • Ovidiu Ersen
  • François Ribot
  • Corinne Chanéac
  • Clément Sanchez
  • David Portehault
  • Frederik Tielens
  • Marialore Sulpizi
DOI
10.1021/acsnano.7b03616
eISSN
1936-086X
Externe Identifier
  • PubMed Identifier: 28613838
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: TRR146
  • Deutsche Forschungsgemeinschaft: SU 752/1
  • Centre National de la Recherche Scientifique:
  • Commissariat ? l'?nergie Atomique et aux ?nergies Alternatives:
  • Universit? Pierre et Marie Curie:
  • Centre de Comp?tences Nanosciences Ile-de-France:
  • Fondation du Coll?ge de France:
Open access
false
ISSN
1936-0851
Ausgabe der Veröffentlichung
7
Zeitschrift
ACS nano
Sprache
eng
Medium
Print-Electronic
Online publication date
2017
Paginierung
7371 - 7381
Datum der Veröffentlichung
2017
Status
Published
Datum der Datenerfassung
2017
Titel
Nanophase Segregation of Self-Assembled Monolayers on Gold Nanoparticles.
Sub types
  • Research Support, Non-U.S. Gov't
  • Journal Article
Ausgabe der Zeitschrift
11

Data source: Europe PubMed Central

Abstract
Nanophase segregation of a bicomponent thiol self-assembled monolayer is predicted using atomistic molecular dynamics simulations and experimentally confirmed. The simulations suggest the formation of domains rich in acid-terminated chains, on one hand, and of domains rich in amide-functionalized ethylene glycol oligomers, on the other hand. In particular, within the amide-ethylene glycol oligomers region, a key role is played by the formation of interchain hydrogen bonds. The predicted phase segregation is experimentally confirmed by the synthesis of 35 and 15 nm gold nanoparticles functionalized with several binary mixtures of ligands. An extensive study by transmission electron microscopy and electron tomography, using silica selective heterogeneous nucleation on acid-rich domains to provide electron contrast, supports simulations and highlights patchy nanoparticles with a trend toward Janus nano-objects depending on the nature of the ligands and the particle size. These results validate our computational platform as an effective tool to predict nanophase separation in organic mixtures on a surface and drive further exploration of advanced nanoparticle functionalization.
Autoren
  • Santosh Kumar Meena
  • Claire Goldmann
  • Douga Nassoko
  • Mahamadou Seydou
  • Thomas Marchandier
  • Simona Moldovan
  • Ovidiu Ersen
  • François Ribot
  • Corinne Chanéac
  • Clément Sanchez
  • David Portehault
  • Frederik Tielens
  • Marialore Sulpizi
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/28613838
DOI
10.1021/acsnano.7b03616
eISSN
1936-086X
Ausgabe der Veröffentlichung
7
Zeitschrift
ACS Nano
Schlüsselwörter
  • Janus particles
  • density functional theory
  • gold nanoparticles
  • molecular dynamics
  • self-assembled monolayer
Sprache
eng
Country
United States
Paginierung
7371 - 7381
Datum der Veröffentlichung
2017
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2018
Titel
Nanophase Segregation of Self-Assembled Monolayers on Gold Nanoparticles.
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
Ausgabe der Zeitschrift
11

Data source: PubMed

Beziehungen:
Property of

Tools