It is a longstanding challenge to be able to control biological systems to perform specific tasks. In a paper published in Nature Physics, researchers at the Niels Bohr Institute, University of Copenhagen, in collaboration with groups in U.S. and U.K., have now reported doing just that. They have found a way to control bacteria to transport microscopic cargo. Bacteria form the largest biomass in the world, larger than all the animals and plants combined, and they are constantly moving, but their movement is chaotic. The researchers pursued the idea that if this motion could be controlled, they might be able to develop it into a biological tool. They used a liquid crystal to dictate the direction of the bacterial movement, and added a microscopic cargo for the bacteria to carry, more than five times the size of the bacteria.
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Source: Phys.org