Abstract
Snowflake-like structural assembly of isotropic gold nanoparticles (GNPs) is reported. A modified polyamine method has been employed to synthesize positively charged GNPs in presence of a polymeric metaphosphate. This process yields fascinating dendritic self-assembled morphologies. Structural characterization revealed that there was aggregation of crystalline GNPs. The aggregates of GNPs formed in the initial stage of synthesis are assumed to act as the bulging seeds for final growth of complex morphologies at nanometer to micrometer length scale. Self-assembly of GNPs was found to be greatly influenced by the concentration of gold precursor. Diffusion limited aggregation of GNPs is suggested as the plausible mechanism for this nanoparticle selforganization process.
| Original language | English |
|---|---|
| Pages (from-to) | 2173-2180 |
| Number of pages | 8 |
| Journal | Journal of Nanoparticle Research |
| Volume | 13 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2011 May 1 |
| Externally published | Yes |
Fingerprint
Keywords
- Anisotropic
- Dendrimers
- Gold nanoparticles
- Polyamine
- Self-assembly
- Snowflake-like
- Synthesis
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Modelling and Simulation
- Chemistry(all)
- Materials Science(all)
- Bioengineering
Cite this
An anisotropic snowflake-like structural assembly of polymer-capped gold nanoparticles. / Parab, Harshala; Jung, Cheulhee; Woo, Min Ah; Park, Hyun Gyu.
In: Journal of Nanoparticle Research, Vol. 13, No. 5, 01.05.2011, p. 2173-2180.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An anisotropic snowflake-like structural assembly of polymer-capped gold nanoparticles
AU - Parab, Harshala
AU - Jung, Cheulhee
AU - Woo, Min Ah
AU - Park, Hyun Gyu
PY - 2011/5/1
Y1 - 2011/5/1
N2 - Snowflake-like structural assembly of isotropic gold nanoparticles (GNPs) is reported. A modified polyamine method has been employed to synthesize positively charged GNPs in presence of a polymeric metaphosphate. This process yields fascinating dendritic self-assembled morphologies. Structural characterization revealed that there was aggregation of crystalline GNPs. The aggregates of GNPs formed in the initial stage of synthesis are assumed to act as the bulging seeds for final growth of complex morphologies at nanometer to micrometer length scale. Self-assembly of GNPs was found to be greatly influenced by the concentration of gold precursor. Diffusion limited aggregation of GNPs is suggested as the plausible mechanism for this nanoparticle selforganization process.
AB - Snowflake-like structural assembly of isotropic gold nanoparticles (GNPs) is reported. A modified polyamine method has been employed to synthesize positively charged GNPs in presence of a polymeric metaphosphate. This process yields fascinating dendritic self-assembled morphologies. Structural characterization revealed that there was aggregation of crystalline GNPs. The aggregates of GNPs formed in the initial stage of synthesis are assumed to act as the bulging seeds for final growth of complex morphologies at nanometer to micrometer length scale. Self-assembly of GNPs was found to be greatly influenced by the concentration of gold precursor. Diffusion limited aggregation of GNPs is suggested as the plausible mechanism for this nanoparticle selforganization process.
KW - Anisotropic
KW - Dendrimers
KW - Gold nanoparticles
KW - Polyamine
KW - Self-assembly
KW - Snowflake-like
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=80051665646&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051665646&partnerID=8YFLogxK
U2 - 10.1007/s11051-010-9975-5
DO - 10.1007/s11051-010-9975-5
M3 - Article
AN - SCOPUS:80051665646
VL - 13
SP - 2173
EP - 2180
JO - Journal of Nanoparticle Research
JF - Journal of Nanoparticle Research
SN - 1388-0764
IS - 5
ER -