Demos (Aalto University and University of Oulu)

Manipulating microalgae with magnetic fields

The demo is organised by the Active Matter research group from the School of Science

We demonstrate how we can manipulate non-magnetic microalgae with magnetic fields when we disperse them in a biocompatible magnetic medium. 

The strain of Microalgae Chlamydomonas reinhardtii that we work with, is a single cell microorganism that swims in a breaststroke fashion using its two flagella. The algae cells have photoreceptors that help them detect light and move towards light in certain conditions. They also have a shape asymmetry that directs their movement. In addition, the algae cells can be guided by a magnetic field when the cells are in a magnetic medium. We demonstrate how these characteristics lead to pattern formation and what we are trying to learn from it. 

Presenter: Fereshteh Sohrabi and Sofia Böling
Research group: Active Matter
Department: Applied physics

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