Journal ArticleDOI
Structure of a thiol monolayer-protected gold nanoparticle at 1.1 A resolution
Pablo D. Jadzinsky,Guillermo Calero,Christopher J. Ackerson,David A. Bushnell,Roger D. Kornberg +4 more
TLDR
The crystallization and x-ray structure determination of a p-mercaptobenzoic acid–protected gold nanoparticle, which comprises 102 gold atoms and 44 p-MBAs, is reported, which is chiral, with the two enantiomers alternating in the crystal lattice.Abstract:
Structural information on nanometer-sized gold particles has been limited, due in part to the problem of preparing homogeneous material. Here we report the crystallization and x-ray structure determination of a p-mercaptobenzoic acid (p-MBA)-protected gold nanoparticle, which comprises 102 gold atoms and 44 p-MBAs. The central gold atoms are packed in a Marks decahedron, surrounded by additional layers of gold atoms in unanticipated geometries. The p-MBAs interact not only with the gold but also with one another, forming a rigid surface layer. The particles are chiral, with the two enantiomers alternating in the crystal lattice. The discrete nature of the particle may be explained by the closing of a 58-electron shell.read more
Citations
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Journal ArticleDOI
Gold nanoparticles in chemical and biological sensing.
TL;DR: The advent of AuNP as a sensory element provided a broad spectrum of innovative approaches for the detection of metal ions, small molecules, proteins, nucleic acids, malignant cells, etc. in a rapid and efficient manner.
Journal ArticleDOI
Prospects of Colloidal Nanocrystals for Electronic and Optoelectronic Applications
TL;DR: Nanocrystals (NCs) discussed in this Review are tiny crystals of metals, semiconductors, and magnetic material consisting of hundreds to a few thousand atoms each that are among the hottest research topics of the last decades.
Journal ArticleDOI
Protein-directed synthesis of highly fluorescent gold nanoclusters.
TL;DR: A simple, one-pot, "green" synthetic route, based on the "biomineralization" capability of a common commercially available protein, bovine serum albumin (BSA), has been developed for the preparation of highly stable Au nanocrystals (NCs) with red emission and high quantum yield.
Journal ArticleDOI
Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
TL;DR: This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties ofatomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles.
Journal ArticleDOI
Correlating the crystal structure of a thiol-protected Au25 cluster and optical properties.
TL;DR: An unusual single crystal structure of a 25-gold-atom cluster protected by eighteen phenylethanethiol ligands is reported, which violates the empirical golden rule "cluster of clusters", and is in good correspondence with time-dependent density functional theory calculations for the observed structure.
References
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Journal ArticleDOI
Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.
TL;DR: A review of gold nanoparticles can be found in this article, where the most stable metal nanoparticles, called gold colloids (AuNPs), have been used for catalysis and biology applications.
Journal ArticleDOI
Formation and Structure of Self-Assembled Monolayers.
TL;DR: Monolayers of alkanethiolates on gold are probably the most studied SAMs to date and offer the needed design flexibility, both at the individual molecular and at the material levels, and offer a vehicle for investigation of specific interactions at interfaces, and of the effect of increasing molecular complexity on the structure and stability of two-dimensional assemblies.
Journal ArticleDOI
The physics of simple metal clusters: experimental aspects and simple models
TL;DR: In this paper, a broad range of experiments are reviewed and compared with theory, including the behavior of the mass-abundance spectra, polarizabilities, ionization potentials, photoelectron spectra and optical spectra.
Journal ArticleDOI
Monolayer-Protected Cluster Molecules
TL;DR: The present state of the rapidly emerging field of monolayer-protected cluster (MPC) molecules with regard to their synthesis andmonolayer functionalization, their core and monolayers structure, their composition, and their properties is evaluated.
Journal ArticleDOI
Alkanethiolate Gold Cluster Molecules with Core Diameters from 1.5 to 5.2 nm: Core and Monolayer Properties as a Function of Core Size
Michael J. Hostetler,Julia E. Wingate,Chuan-Jian Zhong,Jay E. Harris,Richard W. Vachet,Michael R. Clark,J. David Londono,Stephen J. Green,Jennifer J. Stokes,George D. Wignall,Gary L. Glish,Marc D. Porter,Neal D. Evans,Royce W. Murray +13 more
TL;DR: The mean size of the gold core in the synthesis of dodecanethiolate-stabilized Au cluster compounds can be finely adjusted by choice of the Au:dodecanETHiolate ratio and the temperature and rate at which the reduction is conducted as mentioned in this paper.