An anisotropic snowflake-like structural assembly of polymer-capped gold nanoparticles

Harshala Parab; Cheulhee Jung; Min Ah Woo; Hyun Gyu Park

doi:10.1007/s11051-010-9975-5

An anisotropic snowflake-like structural assembly of polymer-capped gold nanoparticles

Harshala Parab, Cheulhee Jung, Min Ah Woo, Hyun Gyu Park

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

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	https://doi.org/10.1007/s11051-010-9975-5
Publication status	Published - 2011 May
Externally published	Yes

Keywords

Anisotropic
Dendrimers
Gold nanoparticles
Polyamine
Self-assembly
Snowflake-like
Synthesis

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Atomic and Molecular Physics, and Optics
Modelling and Simulation
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1007/s11051-010-9975-5

Fingerprint Dive into the research topics of 'An anisotropic snowflake-like structural assembly of polymer-capped gold nanoparticles'. Together they form a unique fingerprint.

Cite this

@article{786884ebf81e4e92baafce69fdb9499d,

title = "An anisotropic snowflake-like structural assembly of polymer-capped gold nanoparticles",

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.",

keywords = "Anisotropic, Dendrimers, Gold nanoparticles, Polyamine, Self-assembly, Snowflake-like, Synthesis",

author = "Harshala Parab and Cheulhee Jung and Woo, {Min Ah} and Park, {Hyun Gyu}",

year = "2011",

month = may,

doi = "10.1007/s11051-010-9975-5",

language = "English",

volume = "13",

pages = "2173--2180",

journal = "Journal of Nanoparticle Research",

issn = "1388-0764",

publisher = "Springer Netherlands",

number = "5",

}

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

Y1 - 2011/5

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 -