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Keywords:

  • Janus particles;
  • patchy particles;
  • metals;
  • synthesis;
  • self-assembly. optical properties;
  • catalysis

Abstract

The concepts of Janus and patchy particles are relatively new in nanoscience. Much effort has been made during recent years to devise and fabricate asymmetric particles with multiple compositions and functionalities due to their interesting properties and potential applications in a variety of fields such as catalysis, optical imaging, or drug delivery. Here, recent advances in the field of Janus particles are highlighted, focusing on nanoparticles comprising (at least) one metallic component, which is responsible for the most interesting properties of the particles. First, the main synthetic approaches are summarized, i.e., phase separation, masking, and self-assembly techniques, and then the special properties, applications, and future prospects of metallic Janus particles are described.