Preparation of aggregation stable gold nanoparticles using star-block copolymers

Ji Ho Youk; Mi Kyoung Park; Jason Locklin; Rigoberto Advincula; Jinchuan Yang; Jimmy Mays

doi:10.1021/la015730e

Preparation of aggregation stable gold nanoparticles using star-block copolymers

Ji Ho Youk, Mi Kyoung Park, Jason Locklin, Rigoberto Advincula^*, Jinchuan Yang, Jimmy Mays

^*Corresponding author for this work

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

86 Citations (Scopus)

Abstract

Nanoparticles of improved stability against long-term aggregation were prepared using poly(styrene)-b-poly(2-vinylpyridine) (PS-b-F2VP) star-block copolymer architectures. The star-block copolymers, physically resembling diblock copolymer micelles, were synthesized by anionic polymerization and coupling with ethylene glycol dimethacrylate. They contain P2VP core segments that facilitated conversion of HAuCl₄ to single gold nanoparticles. The size distribution and long-term stability against aggregation of the gold nanoparticles were investigated both as solution and as films. UV-vis spectroscopy and transmission electron microscope images reveal long-term stability against aggregation up to 1 month.

Original language	English
Pages (from-to)	2455-2458
Number of pages	4
Journal	Langmuir
Volume	18
Issue number	7
DOIs	https://doi.org/10.1021/la015730e
Publication status	Published - 2002 Apr 2
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la015730e

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AU - Youk, Ji Ho

AU - Park, Mi Kyoung

AU - Locklin, Jason

AU - Advincula, Rigoberto

AU - Yang, Jinchuan

AU - Mays, Jimmy

PY - 2002/4/2

Y1 - 2002/4/2

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AB - Nanoparticles of improved stability against long-term aggregation were prepared using poly(styrene)-b-poly(2-vinylpyridine) (PS-b-F2VP) star-block copolymer architectures. The star-block copolymers, physically resembling diblock copolymer micelles, were synthesized by anionic polymerization and coupling with ethylene glycol dimethacrylate. They contain P2VP core segments that facilitated conversion of HAuCl4 to single gold nanoparticles. The size distribution and long-term stability against aggregation of the gold nanoparticles were investigated both as solution and as films. UV-vis spectroscopy and transmission electron microscope images reveal long-term stability against aggregation up to 1 month.

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Preparation of aggregation stable gold nanoparticles using star-block copolymers

Abstract

ASJC Scopus subject areas

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