Thermally reversible self-assembly of nanoparticles via polymer crystallization
- Kinnear, Calum Adolphe Merkle Institute, University of Fribourg, Switzerland - Department of Chemistry, University of Fribourg, Switzerland
- Balog, Sandor Adolphe Merkle Institute, University of Fribourg, Switzerland
- Rothen-Rutishauser, Barbara Adolphe Merkle Institute, University of Fribourg, Switzerland
- Petri-Fink, Alke Adolphe Merkle Institute, University of Fribourg, Switzerland - Department of Chemistry, University of Fribourg, Switzerland
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01.12.2014
Published in:
- Macromolecular Rapid Communications. - 2014, vol. 35, no. 23, p. 2012–2017
English
The directed self-assembly of gold nanoparticles through the crystallization of surface-grafted polyethylene oxide (PEO) in ethanol–water mixtures is described. This process is fully reversible and tunable through either the size of the core or the polymeric coating. Characterization by X-ray scattering and electron microscopy of the self-assembled structures reveals order at the nanoscale, typically not the case for thermoresponsive gold nanoparticles coated with lower or upper critical solution temperature polymers. A further novelty is the result of selective binding of calcium ions to the PEO in the fluid state: a reversible thermoresponsive transition become irreversible.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Chimie
- Language
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- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 233084
- DOI 10.1002/marc.201400457
- Persistent URL
- https://folia.unifr.ch/unifr/documents/304017
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