Strictly Biphasic Soft and Hard Janus Structures: Synthesis, Properties, and Applications

Janus structures, named after the ancient two‐faced Roman god Janus, comprise two hemistructures (e.g. hemispheres) with different compositions and functionalities. Much research has been carried out over the past few years on Janus structures because of the intriguing properties and promising poten...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2014-05, Vol.53 (22), p.5524-5538
Main Authors: Pang, Xinchang, Wan, Congshan, Wang, Mengye, Lin, Zhiqun
Format: Article
Language:English
Subjects:
Architecture
biphasic systems
Chemical composition
Hemispheres
Janus
Janus structures
nanoparticles
R&D
Research & development
Research and development
Roman
Synthesis
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Summary:Janus structures, named after the ancient two‐faced Roman god Janus, comprise two hemistructures (e.g. hemispheres) with different compositions and functionalities. Much research has been carried out over the past few years on Janus structures because of the intriguing properties and promising potential applications of these unusually shaped materials. This Review discusses recent progress made in the synthesis, properties, and applications of strictly biphasic Janus structures possessing symmetrical structures but made of disparate materials. Depending on the chemical compositions, such biphasic structures can be categorized into soft, hard, and hybrid soft/hard Janus structures of different architectures, including spheres, rodlike, disclike, or any other shape. The main synthetic routes to soft, hard, and hybrid soft/hard Janus structures are summarized and their unique properties and applications are introduced. The perspectives for future research and development are also described. Best of both worlds: Janus structures comprise two hemistructures with different compositions and functionalities. This Review summarizes the synthetic routes to soft, hard, and hybrid soft/hard Janus structures, and discusses their properties and applications.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201309352