Using Binary Surfactant Mixtures To Simultaneously Improve the Dimensional Tunability and Monodispersity in the Seeded Growth of Gold Nanorods

Nano Letters ◽  
2013 ◽  
Vol 13 (2) ◽  
pp. 765-771 ◽  
Author(s):  
Xingchen Ye ◽  
Chen Zheng ◽  
Jun Chen ◽  
Yuzhi Gao ◽  
Christopher B. Murray
Keyword(s):  
Gold Nanorods ◽  
Seeded Growth ◽  
Surfactant Mixtures

Seeded Growth of Monodisperse Gold Nanorods Using Bromide-Free Surfactant Mixtures

Nano Letters ◽  
2013 ◽  
Vol 13 (5) ◽  
pp. 2163-2171 ◽  
Author(s):  
Xingchen Ye ◽  
Yuzhi Gao ◽  
Jun Chen ◽  
Danielle C. Reifsnyder ◽  
Chen Zheng ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Seeded Growth ◽  
Surfactant Mixtures

Cooperative interactions among CTA+, Br– and Ag+ during seeded growth of gold nanorods

Nano Research ◽  
2017 ◽  
Vol 10 (6) ◽  
pp. 2146-2155 ◽  
Author(s):  
Yong Xu ◽  
Lei Chen ◽  
Xingchen Ye ◽  
Xuchun Wang ◽  
Jiaqi Yu ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Seeded Growth ◽  
Cooperative Interactions

scholarly journals SEEDED GROWTH SYNTHESIS OF GOLD NANORODS FOR PHOTOTHERMAL APPLICATION

2018 ◽  
Vol 56 (2) ◽  
pp. 148
Author(s):  
Hue Thi Do ◽  
Vu Thi Thuy Duong ◽  
Nguyen Trong Nghia ◽  
Nhung Hong Tran ◽  
Lien Thi Ha Nghiem
Keyword(s):  
Ascorbic Acid ◽  
Aspect Ratio ◽  
Gold Nanorods ◽  
Growth Yield ◽  
Seeded Growth ◽  
Surfactant Templating ◽  
Seed Mediated

In this paper, the gold nanorods (GNRs) were synthesized via a seed-mediated method using 1-3 nm seeds-in diameter and gold atoms created from the reduced Au3+ ions by ascorbic acid (AA) in the presence of cetyltrimethylammonnium bromide (CTAB) as a surfactant templating. The aspect ratio of GNRs as well as growth yield was controlled by adjusting the concentration of Ag+ ions.

Seeded growth of gold nanorods: the effect of sulfur-containing quenching agents

2018 ◽  
Vol 20 (3) ◽  
Author(s):  
Alberto Gobbo ◽  
Riccardo Marin ◽  
Patrizia Canton
Keyword(s):  
Gold Nanorods ◽  
Seeded Growth ◽  
Sulfur Containing

scholarly journals Disconnecting Symmetry Breaking from Seeded Growth for the Reproducible Synthesis of High Quality Gold Nanorods

ACS Nano ◽  
2019 ◽  
Vol 13 (4) ◽  
pp. 4424-4435 ◽  
Author(s):  
Guillermo González-Rubio ◽  
Vished Kumar ◽  
Pablo Llombart ◽  
Pablo Díaz-Núñez ◽  
Eva Bladt ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Gold Nanorods ◽  
Seeded Growth ◽  
High Quality

scholarly journals Micelle-directed chiral seeded growth on anisotropic gold nanocrystals

Science ◽  
2020 ◽  
Vol 368 (6498) ◽  
pp. 1472-1477 ◽  
Author(s):  
Guillermo González-Rubio ◽  
Jesús Mosquera ◽  
Vished Kumar ◽  
Adrián Pedrazo-Tardajos ◽  
Pablo Llombart ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Near Infrared ◽  
Mixed Micelles ◽  
Electromagnetic Spectrum ◽  
Seeded Growth ◽  
Gold Nanocrystals ◽  
Direct Seeded ◽  
Templating Effect ◽  
Surfactant Assisted ◽  
Plasmon Modes

Surfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity.

Formation of Gold Nanorods by Seeded Growth: Mechanisms and Modeling

2018 ◽  
Vol 18 (6) ◽  
pp. 3269-3282 ◽  
Author(s):  
Advait Chhatre ◽  
Rochish Thaokar ◽  
Anurag Mehra
Keyword(s):  
Gold Nanorods ◽  
Growth Mechanisms ◽  
Seeded Growth

Phase behavior of cationic and anionic surfactants at low concentrations

1992 ◽  
Vol 50 (1) ◽  
pp. 694-695
Author(s):  
E. Naranjo
Keyword(s):  
Phase Behavior ◽  
Structural Characterization ◽  
Dynamic Systems ◽  
Anionic Surfactants ◽  
Intermolecular Forces ◽  
Stable Form ◽  
Surfactant Mixtures ◽  
Low Concentrations ◽  
Cationic And Anionic Surfactants ◽  
General Method

Equilibrium vesicles, those which are the stable form of aggregation and form spontaneously on mixing surfactant with water, have never been demonstrated in single component bilayers and only rarely in lipid or surfactant mixtures. Designing a simple and general method for producing spontaneous and stable vesicles depends on a better understanding of the thermodynamics of aggregation, the interplay of intermolecular forces in surfactants, and an efficient way of doing structural characterization in dynamic systems.

Crystal structure-size relationship in ultrafine metallic particles

1989 ◽  
Vol 47 ◽  
pp. 266-267
Author(s):  
Jun Liu ◽  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Ultrafine Particles ◽  
Carbon Film ◽  
Lattice Defects ◽  
Careful Examination ◽  
Seeded Growth ◽  
Gold Particles ◽  
Metallic Particles ◽  
Interfacial Structures ◽  
Typical Particle ◽  
Many Particles

Ultrafine particles usually have unique physical properties. This study illustrates how the lattice defects and interfacial structures between particles are related to the size of ultrafine crystalline gold particles.Colloidal gold particles were produced by reducing gold chloride with sodium citrate at 100°C. In this process, particle size can be controlled by changing the concentration of the reactant. TEM samples are prepared by transferring a small amount of solution onto a thin (5 nm) carbon film which is suspended on a copper grid. In this work, all experiments were performed with Philips 430T at 300 kV.With controlled seeded growth, particles of different sizes are produced, as shown in Figure 1. By a careful examination, it can be resolved that very small particles have lattice defects with complex interfaces. Some typical particle structures include multiple twins, resulting in a five-fold symmetry bicrystals, and highly disordered regions. Many particles are too complex to be described by simple models.

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