Entropic patchiness: Effects of colloid shape and depletion

Andrei V. Petukhov; Remco Tuinier; Gert Jan Vroege

doi:10.1016/j.cocis.2017.05.008

Entropic patchiness: Effects of colloid shape and depletion

Andrei V. Petukhov^*, Remco Tuinier, Gert Jan Vroege

^*Corresponding author for this work

Eindhoven University of Technology

Research output: Contribution to journal › Review article › peer-review

Abstract

This paper reviews ‘entropic patchiness’ of colloidal particles. On the one hand this may be due to their intrinsic tendency to form certain shape-dependent configurations in crowded suspensions, on the other hand this can be strongly enhanced by using depletion interactions that are also of purely entropic origin. A brief account of the Onsager theory and its consequences for the formation of colloidal liquid crystals of highly anisometric particles is presented. It is further supplemented by a recap of the description of depletion attraction between colloids and the effects of their shape. A number of recent examples exploiting entropic patchiness are discussed.

Original language	English
Pages (from-to)	54-61
Number of pages	8
Journal	Current Opinion in Colloid and Interface Science
Volume	30
DOIs	https://doi.org/10.1016/j.cocis.2017.05.008
Publication status	Published - 1 Jul 2017

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10.1016/j.cocis.2017.05.008

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AU - Vroege, Gert Jan

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AB - This paper reviews ‘entropic patchiness’ of colloidal particles. On the one hand this may be due to their intrinsic tendency to form certain shape-dependent configurations in crowded suspensions, on the other hand this can be strongly enhanced by using depletion interactions that are also of purely entropic origin. A brief account of the Onsager theory and its consequences for the formation of colloidal liquid crystals of highly anisometric particles is presented. It is further supplemented by a recap of the description of depletion attraction between colloids and the effects of their shape. A number of recent examples exploiting entropic patchiness are discussed.

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JO - Current Opinion in Colloid and Interface Science

JF - Current Opinion in Colloid and Interface Science

ER -

Entropic patchiness: Effects of colloid shape and depletion

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