Janus and patchy colloids at fluid interfaces |
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| Institution: | 1. Faculty of Physics, University of Vienna, Boltzmanngasse 5, Vienna 1090, Austria;2. Institut für Theoretische Physik, Technische Universität Wien, Wiedner Hauptstraße 8-10, Wien 1040, Austria;3. Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom;1. School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea;2. School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, PR China;3. Department of Chemical Engineering, Ajou University, Suwon 16499, Republic of Korea;4. Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea |
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| Abstract: | Understanding the fundamental behavior of chemically anisotropic Janus and patchy particles at fluid interfaces enables utilization of these colloids as solid surfactants for stabilization of emulsions and as building blocks for fabrication of functional and responsive materials. Here, we review recent progress on understanding the combined effects of particle–interface and particle–particle interactions on the surface activity and organization of Janus and patchy particles at fluid interfaces. We also highlight recent developments that harness these fundamental properties for applications in self-assembly and emulsion stabilization, and discuss some of the outstanding questions that warrant future investigation. The progress in the field opens new opportunities to pursue techniques for controlling interfacial rheology, directed motion, and the formulation of novel soft materials. |
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