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http://dx.doi.org/10.9713/kcer.2013.51.6.655

Attachment Energy of Janus Particles at Fluid-Fluid Interfaces  

Park, Bum Jun (Department of Chemical Engineering, Kyung Hee University)
Publication Information
Korean Chemical Engineering Research / v.51, no.6, 2013 , pp. 655-660 More about this Journal
Abstract
In this review, I present the configuration behaviors of various Janus particles at fluid-fluid interfaces. As a model system, Janus spheres, Janus ellipsoids, and Janus dumbbells are selected to investigate the effect of shape, size, and wettability on their configurations. In particular cases, Janus ellipsoids can adopt two distinct configurations (i.e., upright and tilted configurations) due to the presence of two energy minima in the attachment energy profile. On the contrary, a single energy minimum is found in the case of Janus dumbbells such that they adopt either the upright or tilted configuration. Interestingly, the geometric and chemical asymmetry and anisotropy in the characteristic properties of Janus dumbbells lead to an intermediate state in which the particles can rotate freely in a certain range of orientation angles.
Keywords
Janus Particles; Configurations; Attachment Energy; Interfaces; Colloid Surfactants;
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Times Cited By KSCI : 1  (Citation Analysis)
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