Abstract
Solution-based molecularly-mediated bottom-up assembly of gold nanostars and nanospheres in regiospecific core-satellite nanoarchitectures is reported. The controlled assembly is driven by coupling reactions in solution between small, rigid, Raman-active organic molecules bound to the surface of the nanoparticles, and leads to much narrower interparticle gaps than achievable with DNA-based assembly methods. In the described system, gold nanostars with multiple sharp spikes, ideal for electromagnetic field enhancement, are used as the core particle onto which spherical satellites are assembled. Transmission electron micrographs show that the core-satellite structures assemble with
| Original language | English |
|---|---|
| Pages (from-to) | 21133-21142 |
| Number of pages | 10 |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 17 |
| Issue number | 33 |
| DOIs | |
| Publication status | Published - Oct 31 2014 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Physics and Astronomy(all)
Cite this
Plasmonic properties of regiospecific core-satellite assemblies of gold nanostars and nanospheres. / Indrasekara, A. Swarnapali D S; Thomas, Roney; Fabris, Laura.
In: Physical Chemistry Chemical Physics, Vol. 17, No. 33, 31.10.2014, p. 21133-21142.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Plasmonic properties of regiospecific core-satellite assemblies of gold nanostars and nanospheres
AU - Indrasekara, A. Swarnapali D S
AU - Thomas, Roney
AU - Fabris, Laura
PY - 2014/10/31
Y1 - 2014/10/31
N2 - Solution-based molecularly-mediated bottom-up assembly of gold nanostars and nanospheres in regiospecific core-satellite nanoarchitectures is reported. The controlled assembly is driven by coupling reactions in solution between small, rigid, Raman-active organic molecules bound to the surface of the nanoparticles, and leads to much narrower interparticle gaps than achievable with DNA-based assembly methods. In the described system, gold nanostars with multiple sharp spikes, ideal for electromagnetic field enhancement, are used as the core particle onto which spherical satellites are assembled. Transmission electron micrographs show that the core-satellite structures assemble with
AB - Solution-based molecularly-mediated bottom-up assembly of gold nanostars and nanospheres in regiospecific core-satellite nanoarchitectures is reported. The controlled assembly is driven by coupling reactions in solution between small, rigid, Raman-active organic molecules bound to the surface of the nanoparticles, and leads to much narrower interparticle gaps than achievable with DNA-based assembly methods. In the described system, gold nanostars with multiple sharp spikes, ideal for electromagnetic field enhancement, are used as the core particle onto which spherical satellites are assembled. Transmission electron micrographs show that the core-satellite structures assemble with
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U2 - 10.1039/c4cp04517c
DO - 10.1039/c4cp04517c
M3 - Article
VL - 17
SP - 21133
EP - 21142
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 33
ER -