Facile and controllable incorporation of gold nanoparticles within one-dimensional self-assemblies of hyperbranched polymers

Li, Haiqing, Cooper-White, Justin J. and Kim, Il (2013) Facile and controllable incorporation of gold nanoparticles within one-dimensional self-assemblies of hyperbranched polymers. Soft Matter, 9 21: 5270-5276. doi:10.1039/c3sm50768h


Author Li, Haiqing
Cooper-White, Justin J.
Kim, Il
Title Facile and controllable incorporation of gold nanoparticles within one-dimensional self-assemblies of hyperbranched polymers
Journal name Soft Matter   Check publisher's open access policy
ISSN 1744-683X
1744-6848
Publication date 2013-06-11
Sub-type Article (original research)
DOI 10.1039/c3sm50768h
Open Access Status Not Open Access
Volume 9
Issue 21
Start page 5270
End page 5276
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Formatted abstract
Using a mono-pyrene terminated hyperbranched polyglycidol (mPTHP) as a building block, one-dimensional (1D) mPTHP and mPTHP/gold nanoparticle (Au NP) nanostructures are fabricated in the presence of HAuCl4. By simply mixing mPTHP and different concentrations of aqueous HAuCl4 solution at room temperature, mPTHP nanofibers and nanotubes are obtained through Au(III) ion induced self-assembly processes. Upon elevating the reaction temperature from room temperature to 60 °C, Au NPs are in situ generated within 1D mPTHP assemblies via an analogous “polyol process”, forming mPTHP/Au NP hybrid nanofibers and nanotubes. Careful control of the HAuCl4 concentration enables in situ generated Au NPs to be either distributed along the center-line of nanofibers or symmetrically aligned into a double-line along the nanofibers and the inner surface of nanotubes. Further investigation reveals that the involvement of a small amount of NaBr in the reaction system of mPTHP and different amounts of HAuCl4 results in the formation of pseudo-nanotubes decorated with double-lined Au NP chains along their inner surfaces. Moreover, the size of Au NPs can be effectively tuned in terms of HAuCl4 concentration. All 1D mPTHP and mPTHP/Au NP nanostructures described in our current work are achieved through one-pot aqueous reactions in the absence of any additional reducing agents, surfactants and organic solvents, so that they are facile, green and low-cost strategies. To the best of our knowledge, this is the first example to synthesize 1D hyperbranched polymer/metal NP hybrid nanostructures with controllable spatial distribution of NPs using such a facile and green protocol.
Keyword Triblock copolymers
Fabrication
Morphology
Architectures
Molecules
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
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