A schematic view of a basic spherical Janus particle with two distinct faces: Sides A and B represent two surfaces with different physical or chemical properties.
Janus particles are special types of nanoparticles or microparticles whose surfaces have two or more distinct physical properties.[1][2] This unique surface of Janus particles allows two different types of chemistry to occur on the same particle. The simplest case of a Janus particle is achieved by dividing the particle into two distinct parts, each of them either made of a different material, or bearing different functional groups.[3] For example, a Janus particle may have one half of its surface composed of hydrophilic groups and the other half hydrophobic groups,[4] the particles might have two surfaces of different color,[5] fluorescence, or magnetic properties.[6] This gives these particles unique properties related to their asymmetric structure and/or functionalization.[7]
^Li, Fan; Josephson, David P.; Stein, Andreas (10 January 2011). "Colloidal Assembly: The Road from Particles to Colloidal Molecules and Crystals". Angewandte Chemie International Edition. 50 (2): 360–388. doi:10.1002/anie.201001451. PMID 21038335.
^Janus Particle Synthesis, Self-Assembly and Applications, Editors: Shan Jiang, Steve Granick, Royal Society of Chemistry, Cambridge 2013, https://pubs.rsc.org/en/content/ebook/978-1-84973-510-0
^Cite error: The named reference Nano today review 2011 was invoked but never defined (see the help page).
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