Synthesis and Characterization of Janus Gold Nanoparticles

When gold nanoparticles are coated with binary mixtures of dislike ligand molecules, separation in the ligand shell occurs; if the particles are smaller than a threshold size the separation is solely enthalpy driven leading to the spontaneous formation of Janus particles.

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-07, Vol.24 (28), p.3857-3863
Main Authors: Kim, Hyewon, Carney, Randy P., Reguera, Javier, Ong, Quy K., Liu, Xiang, Stellacci, Francesco
Format: Article
Language:English
Subjects:
Dimerization
Gold
janus gold nanoparticles
ligand morphology
Ligands
Magnetic Resonance Spectroscopy
Metal Nanoparticles - chemistry
Metal Nanoparticles - ultrastructure
Microscopy, Electron, Transmission
Microscopy, Scanning Tunneling
Nanotechnology
patchy particles
phase separation
Sulfhydryl Compounds - chemistry
Surface Properties
Terphenyl Compounds - chemistry
Thermodynamics
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Description
Summary:When gold nanoparticles are coated with binary mixtures of dislike ligand molecules, separation in the ligand shell occurs; if the particles are smaller than a threshold size the separation is solely enthalpy driven leading to the spontaneous formation of Janus particles.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201200926