Carbon–gold core–shell structures: formation of shells consisting of gold nanoparticles

2012 ◽  
Vol 48 (33) ◽  
pp. 3972 ◽  
Author(s):  
Jerzy Choma ◽  
Dominik Jamioła ◽  
Katarzyna Augustynek ◽  
Michal Marszewski ◽  
Mietek Jaroniec
2017 ◽  
Vol 16 (02) ◽  
pp. 1650029
Author(s):  
R. Sepahvand ◽  
S. Alihosseini ◽  
M. Adeli ◽  
P. Sasanpour

Hybrid nanomaterials consisting of functionalized fullerene and gold nanoparticle (NP) have been synthesized. Fullerene was functionalized by citric acid and used as reducing and capping agent for preparation of gold NPs. Functionalization of fullerene by use of citric acid was performed by enzymatic and thermal approaches. The core-shell structures containing gold NPs as core and fullerene as shell (gold/fullerene) were prepared. It was found that method and density of functionalization of fullerene effect final structure and therefore their physicochemical property of hybrid nanomaterial dramatically. Ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, dynamic light scattering (DLS), atomic force microscopy (AFM), transmission electron microscopy (TEM) were used to analyze the structure of the synthesized hybrid nanomaterial and also study their self-assembly and physicochemical properties. Effect of the size, structure and morphology (e.g., agglomeration) of the synthesized hybrid nanomaterial on their UV-Vis absorption behavior has been also verified by theoretical modeling.


Author(s):  
Jerzy Choma ◽  
Dominik Jamioła ◽  
Piotr Nyga ◽  
Mietek Jaroniec

2008 ◽  
Vol 368-372 ◽  
pp. 797-799 ◽  
Author(s):  
Chien Jung Huang ◽  
Pin Hsiang Chiu ◽  
Yeong Her Wang

This paper describes a sol-gel (SG) method for the coating of gold nanoparticles with uniform shells of amorphous silica. The thickness of silica could be conveniently controlled in the range of 10 to 120 nm by increasing the amount of water. Although spherical gold nanoparticles generally have a surface plasmon resonance (SPR) at a wavelength of about 520 nm, a spherical gold core with a silica shell offers a very highly tunable SPR wavelength depending on the thickness of the silica shell.


2014 ◽  
Vol 50 (35) ◽  
pp. 4635-4638 ◽  
Author(s):  
Revital Kaminker ◽  
Michal Lahav ◽  
Marc Altman ◽  
Guennadi Evmenenko ◽  
Pulak Dutta ◽  
...  

A gold nanoparticle platform enhances the optical properties and order in a metal–organic network (MON).


Langmuir ◽  
2008 ◽  
Vol 24 (9) ◽  
pp. 5109-5112 ◽  
Author(s):  
Nopphawan Phonthammachai ◽  
James C. Y. Kah ◽  
Guo Jun ◽  
Colin J. R. Sheppard ◽  
Malini C. Olivo ◽  
...  

2009 ◽  
Vol 19 (20) ◽  
pp. 3286 ◽  
Author(s):  
Shuangxi Xing ◽  
Li Huey Tan ◽  
Miaoxin Yang ◽  
Ming Pan ◽  
Yunbo Lv ◽  
...  

ACS Nano ◽  
2014 ◽  
Vol 8 (2) ◽  
pp. 1130-1135 ◽  
Author(s):  
Chuan Zhang ◽  
Xiang Li ◽  
Cheng Tian ◽  
Guimei Yu ◽  
Yulin Li ◽  
...  

2019 ◽  
Vol 3 (2) ◽  
pp. 209-215 ◽  
Author(s):  
Yi Yang ◽  
Yulan Wang ◽  
Seon-Mi Jin ◽  
Jiangping Xu ◽  
Zaiyan Hou ◽  
...  

A mixture of binary polystyrene (PS)-tethered gold nanoparticles (GNPs) with different sizes can co-assemble into size-segregated core–shell structures under 3D confinement. The location and arrangement of GNPs can be effectively tuned by varying the chain length of the modified PS.


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