Research progress on functional Janus nanoparticles
Janus nanoparticles,a type of nanomaterials with anisotropic spatial or physio-chemical properties,have attracted wide attention due to their unique properties and applications in functional coatings,environment,catalysis,biomedicine and other fields.The side-by-side distribution of different nanoparticles provides a flexible platform for customizing Janus nanoparticles with rich functions.Compared with traditional homogeneous nanoparticles,functional Janus nanoparticles expand more emerging applications via combination of two or more functions.Herein,the preparation strategies for functional Janus nanoparticles such as magnetic responsiveness,catalysis,asymmetric infiltration and self-actuation,were specifically discussed.At the same time,a number of application fields of functional Janus nanoparticles were introduced with the existing problems analyzed.Finally,the future development directions for synthesis and applications of functional Janus nanoparticles were prospected.
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