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Precisely Assembled Cyclic Gold Nanoparticle Frames by 2D Polymer Single‐Crystal Templating
- Source :
- Angewandte Chemie International Edition. 56:13645-13649
- Publication Year :
- 2017
- Publisher :
- Wiley, 2017.
-
Abstract
- In recent decades, extensive studies have been devoted to assembling nanoparticles (NPs) into various ordered structures to achieve novel optical properties. However, it still remains a challenging task to assemble NPs into cyclic one-dimensional (1D) shapes, such as rings and frames. Herein, we report a directed assembly method to precisely assemble NPs into well-defined, free-standing frames using polymer single crystals (PSCs) as the template. Preformed poly(ethylene oxide) (PEO) single crystals were used as the template to direct the crystallization of block copolymer (BCP) poly(ethylene oxide)-b-poly(4-vinylpyridine) (PEO-b-P4VP), which directs the gold NPs (AuNPs) to form AuNP frames. By controlling the PSC growth, we were able to, for the first time, precisely tune both the size and width of the AuNP frame. These novel AuNP frames topologically resemble NP nanorings and cyclic polymer chains, and show unique surface plasmon resonance (SPR) behaviors.
- Subjects :
- chemistry.chemical_classification
Materials science
Ethylene oxide
Crystallization of polymers
Nanoparticle
Nanotechnology
General Medicine
02 engineering and technology
General Chemistry
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Catalysis
0104 chemical sciences
law.invention
chemistry.chemical_compound
chemistry
law
Copolymer
Crystallization
Surface plasmon resonance
0210 nano-technology
Single crystal
Subjects
Details
- ISSN :
- 15213773 and 14337851
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Angewandte Chemie International Edition
- Accession number :
- edsair.doi.dedup.....38466e6a4096d55f8618a813bce24149