Surfactant-Assisted Emulsion Self-Assembly of Nanoparticles into Hollow Vesicle-Like Structures and 2D Plates
- 등재 SCIE, SCOPUS
- 발행기관 WILEY-V C H VERLAG GMBH
- 발행년도 2016
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000139674
- 본문언어 영어
- Published As http://dx.doi.org/10.1002/adfm.201603971
초록/요약
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.
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