Anisotropic colloids through non-trivial buckling

Details Anisotropic colloids through non-trivial buckling Anisotropic colloids through non-trivial buckling

2008-02-06

arxiv.org/abs/0802.0824v3

European Journal of Physics 27, 1 (2009) 13

Physics

Condensed Matter

Soft Condensed Matter

submitted to EPJE

Scientific paper

10.1140/epje/i2007-10365-2

We present a study on buckling of colloidal particles, including experimental, theoretical and numerical developments. Oil-filled thin shells prepared by emulsion templating show buckling in mixtures of water and ethanol, due to dissolution of the core in the external medium. This leads to conformations with a single depression, either axisymmetric or polygonal depending on the geometrical features of the shells. These conformations could be theoretically and/or numerically reproduced in a model of homogeneous spherical thin shells with bending and stretching elasticity, submitted to an isotropic external pressure.

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