Tailoring the Core-Satellite Nanoassembly Architectures by Tuning Internanoparticle Electrostatic Interactions

The use of plasmonic nanoplatforms has received increasing interest in a wide variety of fields ranging from theranostics to environmental sensing to plant biology. In particular, the development of plasmonic nanoparticles into ordered nanoclusters has been of special interest due to the new chemica...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 34(2018), 48 vom: 04. Dez., Seite 14617-14623
1. Verfasser: De Silva Indrasekara, Agampodi S (VerfasserIn)
Weitere Verfasser: Norton, Stephen J, Geitner, Nicholas K, Crawford, Bridget M, Wiesner, Mark R, Vo-Dinh, Tuan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S.
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100 1 |a De Silva Indrasekara, Agampodi S  |e verfasserin  |4 aut 
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520 |a The use of plasmonic nanoplatforms has received increasing interest in a wide variety of fields ranging from theranostics to environmental sensing to plant biology. In particular, the development of plasmonic nanoparticles into ordered nanoclusters has been of special interest due to the new chemical functionalities and optical responses that they can introduce. However, achieving predetermined nanocluster architectures from bottom-up approaches in the colloidal solution state still remains a great challenge. Herein, we report a one-pot assembly approach that provides flexibility in precise control of core-satellite nanocluster architectures in the colloidal solution state. We found that the pH of the assembly medium plays a vital role in the hierarchy of the nanoclusters. The architecture along with the size of the satellite gold nanoparticles determines the optical responses of nanoclusters. Using electron microscopy and optical spectroscopy, we introduce a set of design rules for the synthesis of distinct architectures of silica-core gold satellites nanoclusters in the colloidal solution state. Our findings provide insight into advancing the colloidal solution state nanoclusters formation with predictable architectures and optical properties 
650 4 |a Journal Article 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
700 1 |a Norton, Stephen J  |e verfasserin  |4 aut 
700 1 |a Geitner, Nicholas K  |e verfasserin  |4 aut 
700 1 |a Crawford, Bridget M  |e verfasserin  |4 aut 
700 1 |a Wiesner, Mark R  |e verfasserin  |4 aut 
700 1 |a Vo-Dinh, Tuan  |e verfasserin  |4 aut 
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