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Colloidal crystal–fluid interfaces

In this article we show that colloidal systems are excellent model systems to experimentally study crystal–fluid interfaces. Using confocal microscopy it is possible to investigate static and dynamic interfacial properties in three dimensions and on the single particle level. The combination of real-space microscopy and colloidal model systems may provide a possible route to directly access the anisotropic interfacial free energy and the kinetic growth coefficient of crystal–fluid interfaces.