# Tom Machon: Nematics, Knots and Non-Orientable Surfaces

Date: 11. 4. 2013

Source: Soft matter seminar

Source: Soft matter seminar

Place/time: Kuščerjev seminar, Thursday (11.4.2013) at 14:15.

This Thursday **Tom Machon***, **University of Warwick**,* will give
seminar " **Nematics, Knots and Non-Orientable Surfaces**".

We extend existing work on spherical and toroidal colloids to describe the topological implications of colloids representing non-orientable surfaces and show that, by controlling colloid geometry and topology, metastable disclinations in the shape of torus knots and links of type (p, 2) can be built around multiply-twisted Mobius strip colloids. These knotted configurations bear a striking resemblance to torons, suggesting a route for experimental realisation.