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28 August 2026

Viscous Influence

The complex fluid habitats favoured by bacteria have the characteristics (such as alignment of particles) of liquid crystal between a solid and a liquid, but this is often overlooked – in lab experiments bacteria are more usually examined in simple solutions. In liquid crystal here bacteria are revealed as they divide to line up in chains which then buckle, confined and shaped by the stresses of the viscous medium. Here E.coli are seen proliferating first in a medium with a liquid crystal concentration that dwindles over time, then in a medium steadily pumped with liquid crystal

Read the published research article here

Written by Lindsey Goff

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BPoD stands for Biomedical Picture of the Day. Managed by the MRC Laboratory of Medical Sciences until Jul 2023, it is now run independently by a dedicated team of scientists and writers. The website aims to engage everyone, young and old, in the wonders of biology, and its influence on medicine. The ever-growing archive of more than 4000 research images documents over a decade of progress. Explore the collection and see what you discover. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

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