Flexible colloidal molecules with site-specific interaction offer many possibilities for designing flexible colloidal structures. In this project, we have analyzed how differently shaped colloidal...Show moreFlexible colloidal molecules with site-specific interaction offer many possibilities for designing flexible colloidal structures. In this project, we have analyzed how differently shaped colloidal building blocks, so called colloidal ”atoms”, can influence the flexibility and formation of colloidal molecules, which is a finite sized cluster of colloidal atoms. We investigated how particle shape and size and linker DNA control or affect the flexibility of colloidal molecules and the translational and angular displacement of the colloidal ”atom”. We also have shown preferred angles between atoms, by analyzing the location of the bonded particles on the face of the cube.Show less
Active particles can be used to model various biological processes like groups of bacteria or even flocks of birds. Until now, the shape of active prolate ellipsoids has not been optimized to make...Show moreActive particles can be used to model various biological processes like groups of bacteria or even flocks of birds. Until now, the shape of active prolate ellipsoids has not been optimized to make these particles move in a straight line. This is particularly interesting because a straight moving particle can be used as a basis to model these biological systems. Simulations were done to optimize the shape of prolate ellipsoids for straightness of path and four variables are defined that quantify this. The paths of active prolate ellipsoids with a long semi axis of 5 μm and a short semi axis between 1 and 4.9 μm were simulated in C, and the straightness of path was compared using the variables. The simulations suggest that particles with a larger short semi axis follow straighter paths, although this needs to be supported by empirical results.Show less
