Kinetically Controlled Seeded Growth Synthesis of Citrate-Stabilized Gold Nanoparticles of up to 200 nm: Size Focusing versus Ostwald Ripening

Langmuir ◽  
2011 ◽  
Vol 27 (17) ◽  
pp. 11098-11105 ◽  
Author(s):  
Neus G. Bastús ◽  
Joan Comenge ◽  
Víctor Puntes
Keyword(s):  
Gold Nanoparticles ◽  
Ostwald Ripening ◽  
Seeded Growth ◽  
Kinetically Controlled

Synthesis of large gold nanoparticles with deformation twinnings by one-step seeded growth with Cu(ii)-mediated Ostwald ripening for determining nitrile and isonitrile groups

Nanoscale ◽  
2020 ◽  
Vol 12 (32) ◽  
pp. 16934-16943
Author(s):  
Chenshuo Wu ◽  
Hongpeng He ◽  
Yahui Song ◽  
Cuixia Bi ◽  
Lixiang Xing ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ostwald Ripening ◽  
Seeded Growth ◽  
Growth Method ◽  
One Step

Gold nanoparticles with deformation twinnings prepared by a Cu2+-assisted one-step seeded growth method can distinguish nitrile and isonitrile groups by SERS.

X-ray computed tomography contrast agents prepared by seeded growth of gold nanoparticles in PEGylated dendrimer

2010 ◽  
Vol 21 (24) ◽  
pp. 245104 ◽  
Author(s):  
Chie Kojima ◽  
Yasuhito Umeda ◽  
Mikako Ogawa ◽  
Atsushi Harada ◽  
Yasuhiro Magata ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Gold Nanoparticles ◽  
Contrast Agents ◽  
Seeded Growth ◽  
X Ray ◽  
X Ray Computed

Tailored multifunctional micellar brushes via crystallization-driven growth from a surface

Science ◽  
2019 ◽  
Vol 366 (6469) ◽  
pp. 1095-1098 ◽  
Author(s):  
Jiandong Cai ◽  
Chen Li ◽  
Na Kong ◽  
Yi Lu ◽  
Geyu Lin ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Surface Functionalization ◽  
Two Dimensional ◽  
Graphene Oxide Nanosheets ◽  
Seeded Growth ◽  
Material Surfaces ◽  
Oil In Water ◽  
Two Dimensional Materials ◽  
Antibacterial Surface

The creation of nanostructures with precise chemistries on material surfaces is of importance in a wide variety of areas such as lithography, superhydrophobicity, and cell adhesion. We describe a platform for surface functionalization that involves the fabrication of cylindrical micellar brushes on a silicon wafer through seeded growth of crystallizable block copolymers at the termini of immobilized, surface-confined crystallite seeds. The density, length, and coronal chemistry of the micellar brushes can be precisely tuned, and post-growth decoration with nanoparticles enables applications in catalysis and antibacterial surface modification. The micellar brushes can also be grown on ultrathin two-dimensional materials such as graphene oxide nanosheets and further assembled into a membrane for the separation of oil-in-water emulsions and gold nanoparticles.

scholarly journals Size-controlled and water-soluble gold nanoparticles using UV-induced ligand exchange and phase transfer

2018 ◽  
Vol 54 (95) ◽  
pp. 13355-13358 ◽  
Author(s):  
Jan Bart ten Hove ◽  
Laura M. I. Schijven ◽  
Junyou Wang ◽  
Aldrik H. Velders
Keyword(s):  
Gold Nanoparticles ◽  
Ligand Exchange ◽  
Water Solubility ◽  
Phase Transfer ◽  
Water Soluble ◽  
Size Distributions ◽  
Seeded Growth ◽  
Growth Approach ◽  
Size Controlled

Oleylamine-capped gold nanoparticles (AuNPs) with sizes ranging from 5 to 13 nm and narrow size distributions (<10%) are synthesized by using a seeded growth approach. Water-solubility is achieved by using a UV-induced ligand exchange approach.

Kinetically Controlled Sequential Seeded Growth: A General Route to Crystals with Different Hierarchies

ACS Nano ◽  
2020 ◽  
Vol 14 (11) ◽  
pp. 15953-15961
Author(s):  
Joshua D. Smith ◽  
Mattea M. Scanlan ◽  
Alexander N. Chen ◽  
Hannah M. Ashberry ◽  
Sara E. Skrabalak
Keyword(s):  
Seeded Growth ◽  
Kinetically Controlled

Implications of citrate concentration during the seeded growth synthesis of gold nanoparticles

2011 ◽  
Vol 47 (1) ◽  
pp. 478-480 ◽  
Author(s):  
Anna A. Volkert ◽  
Varuni Subramaniam ◽  
Amanda J. Haes
Keyword(s):  
Gold Nanoparticles ◽  
Seeded Growth ◽  
Citrate Concentration

Rapid Seeded Growth of Monodisperse, Quasi-Spherical, Citrate-Stabilized Gold Nanoparticles via H2O2 Reduction

Langmuir ◽  
2012 ◽  
Vol 28 (38) ◽  
pp. 13720-13726 ◽  
Author(s):  
Xiaokong Liu ◽  
Haolan Xu ◽  
Haibing Xia ◽  
Dayang Wang
Keyword(s):  
Gold Nanoparticles ◽  
Seeded Growth ◽  
H2o2 Reduction

Kinetically controlled synthesis of bimetallic nanostructures by flowrate manipulation in a continuous flow droplet reactor

2018 ◽  
Vol 3 (4) ◽  
pp. 437-441 ◽  
Author(s):  
Joshua S. Santana ◽  
Kallum M. Koczkur ◽  
Sara E. Skrabalak
Keyword(s):  
Continuous Flow ◽  
Pd Nanoparticles ◽  
Core Shell ◽  
Controlled Synthesis ◽  
Seeded Growth ◽  
Kinetically Controlled ◽  
Bimetallic Nanostructures ◽  
Kinetically Controlled Synthesis

We show that different Au–Pd nanoparticles, ranging from sharp-branched octopods to core@shell octahedra, can be achieved by inline manipulation of reagent flowrates in a microreactor for seeded growth.

Controlled Growth of Gold Nanoparticles on Silica Nanowires

2005 ◽  
Vol 20 (11) ◽  
pp. 3021-3027 ◽  
Author(s):  
Aaron D. LaLonde ◽  
M. Grant Norton ◽  
Daqing Zhang ◽  
Devananda Gangadean ◽  
Abdullah Alkhateeb ◽  
...  
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Substrate Temperature ◽  
Size Distribution ◽  
Surface Diffusion ◽  
Ostwald Ripening ◽  
Size Control ◽  
Chemical Vapor ◽  
Chamber Pressure ◽  
Transmission Electron

Production of gold nanoparticles with the specific goal of particle size control has been investigated by systematic variation of chamber pressure and substrate temperature. Gold nanoparticles have been synthesized on SiO2 nanowires by plasma-enhanced chemical vapor deposition. Determination of particle size and particle size distribution was done using transmission electron microscopy. Average nanoparticle diameters were between 4 and 12 nm, with particle size increasing as substrate temperature increased from 573 to 873 K. A bimodal size distribution was observed at temperatures ≥723 K indicating Ostwald ripening dominated by surface diffusion. The activation energy for surface diffusion of gold on SiO2 was determined to be 10.4 kJ/mol. Particle sizes were found to go through a maximum with increases in chamber pressure. Competition between diffusion within the vapor and dissociation of the precursor caused the pressure effect.

scholarly journals Formation of Superlattices of Gold Nanoparticles Using Ostwald Ripening in Emulsions: Transition from fcc to bcc Structure

2016 ◽  
Vol 120 (25) ◽  
pp. 5759-5766 ◽  
Author(s):  
Julien Schmitt ◽  
Stéphanie Hajiw ◽  
Amélie Lecchi ◽  
Jéril Degrouard ◽  
Anniina Salonen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ostwald Ripening ◽  
Bcc Structure
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