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Origin of optical second-harmonic generation in spherical gold nanoparticles: Local surface and nonlocal bulk contributions
Origin optical second-harmonic generation spherical gold nanoparticles Local surface nonlocal bulk contributions
2011/8/5
Abstract: The second-harmonic generation of 150 nm spherical gold nanoparticles is investigated both experimentally and theoretically. We demonstrate that the interference effects between dipolar and ...
Photocatalytic Synthesis of Gold Nanoparticles Using Preyssler Acid and Their Photocatalytic Activity（图）
gold nanoparticle polyoxometalate Preyssler acid photodegradation methyl orange
2013/10/13
Preyssler acid H14[NaP5W30O110] was used as reducing agent and stabilizer for the synthesis of gold nanoparticles by photolysis of Au(III)/Preyssler acid/propan-2-ol solution. Preyssler acid plays bot...
Migration mechanisms of gold nanoparticles explored in geogas of the Hetai ore district, southern China
geogas gold concelead ores gas migration
2017/4/12
Several studies have shown that gas flows (namely “geogas”) ascending from the Earth’s interior can, while passing
through concelead orebodies, assimilate ore nanoparticles and carry them to the surf...
Synthesis and characterization of gold nanoparticles supported on zinc oxide via the deposition-precipitation method
Au nanoparticles ZnO nanorods deposition-precipitation
2010/10/19
Gold nanoparticles supported on zinc oxide nanoparticles were synthesized at several pH levels via the deposition-precipitation (DP) method. The effects of pH on gold loading, particle size, and parti...
Spectrophotometric Determination of Cysteine with Gold Nanoparticles Stabilized with Single-stranded Oligonucleotides
Spectrophotometric Determination Cysteine Gold Nanoparticles Stabilized Single-stranded Oligonucleotides
2010/9/20
A sensitive and selective spectrophotometric detection method for cysteine has been established in this paper. The assay is based on the displacement of single-stranded oligonucleotide (ssDNA) adsorb...
Synthesis and Bioconjugation of Gold Nanoparticles as Potential Molecular Probes for Light-Based Imaging Techniques
Synthesis Bioconjugation Potential Molecular Probes
2009/9/7
We have synthesized and characterized gold nanoparticles (spheres and rods) with optical extinction bands within the “optical imaging window.” The intense plasmon resonant driven absorption and scatte...
Gold Nanoparticles, A Renaissance in Gold Chemistry.
The Third Order Nonlinear Optical Properties of Gold Nanoparticles in Glasses, Part II
Gold Nanoparticles Glasses
2009/7/29
The optical properties of gold nanoparticles
have been known for a number of years and recent
advances in laser power have now allowed the
non-linear optical properties to be studied. In this short...
The Third Order Nonlinear Optical Properties of Gold Nanoparticles in Glasses, Part I
Gold Nanoparticles Glasses
2009/7/29
The optical properties of gold nanoparticles
have been known for a number of years and recent
advances in laser power have now allowed the
non-linear optical properties to be studied. In this short...
Photochemical Synthesis of Gold Nanoparticles by the Sunlight Radiation using a Seeding Approach
Gold Nanoparticles Sunlight Radiation
2009/7/29
A novel photochemical synthesis of colloidal gold
particles has been studied based on a seed-mediated
growth approach under the UV solar radiation on
plateau. In the HAuCl4 solution containing cert...
Highly concentrated pastes of gold nanoparticles were
successfully produced by using a special type of
protective polymer and a mild reductant. The solid part
of these pastes comprises up to 85wt% ...
Printing Gold Nanoparticles with an Electrohydrodynamic Direct-Write Device
nanoparticles nano-suspensions printing
2009/7/28
A dispersion containing 15nm gold particles in ethanol was subjected to electrohydrodynamic
atomization, producing droplets with an average size of ~26mm as measured by laser diffraction. An electro...
A Facile and Completely Green Route for Synthesizing Gold Nanoparticles by the Use of Drink Additives
nanoparticles green chemistry synthesis
2009/7/28
A facile and completely green route to synthesize Aunanoparticles by mixing the Au(III) ions-dissolved ricewine and soda at a slightly elevated temperature inthe absence of extra protective agents was...
Intrinsic Reactivity of Gold Nanoparticles: Classical, Semi- Empirical and DFT Studies
Gold catalysis Chemisorption Nanoparticles Fermi level
2009/7/28
Gold nanoparticles used in most experiments(1-10 nm) in gold catalysis show varying degrees of
reactivity, with particles below 5 nm generally beingmore reactive. The origin of this ctivity is a subj...
Ultra-sensitive detection of individual gold nanoparticles: spectroscopy and applications to biology
gold nanoparticles spectroscopy
2009/7/28
Gold nanoparticles are now widely used in different
fields of chemistry, physics and biology. For many
applications, it became crucial to use the smallest
ones and at the same time to be able to de...