Surfactant‐Assisted Emulsion Self‐Assembly of Nanoparticles into Hollow Vesicle‐Like Structures and 2D Plates
| Autor: | Sangmi Jun, So Jung Park, Seulki Kang, Danielle Reifsnyder Hickey, Ji Eun Park, Xiaole Hu, Xi Jun Chen |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Vesicle technology industry and agriculture Evaporation Nanoparticle Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Biomaterials Pulmonary surfactant Emulsion Electrochemistry Self-assembly 0210 nano-technology Nanoscopic scale Self-assembly of nanoparticles |
| Zdroj: | Advanced Functional Materials. 26:7791-7798 |
| ISSN: | 1616-3028 1616-301X |
| DOI: | 10.1002/adfm.201603971 |
| Popis: | The emulsion-based self-assembly of nanoparticles into low-dimensional superparticles of hollow vesicle-like assemblies is reported. Evaporation of the oil phase at relatively low temperatures from nanoparticle-containing oil-in-water emulsion droplets leads to the formation of stable and uniform sub-micrometer vesicle-like assembly structures in water. This result is in contrast with those from many previously reported emulsion-based self-assembly methods, which produce solid spherical assemblies. It is found that extra surfactants in both the oil and water phases play a key role in stabilizing nanoscale emulsion droplets and capturing hollow assembly structures. Systematic investigation into what controls the morphology in emulsion self-assembly is carried out, and the approach is extended to fabricate more complex rattle-like structures and 2D plates. These results demonstrate that the emulsion-based assembly is not limited to typical thermodynamic spherical assembly structures and can be used to fabricate various types of interesting low-dimensional assembly structures. |
| Databáze: | OpenAIRE |
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