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Optical Tractor Beam Traps Bacteria

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Physicists at Bielefeld and Frankfurt Universities are studying blood cells, algae and bacteria by trapping these biological cells with a laser beam. Using this procedure they have obtained superresolution images of the DNA in single bacteria. Professor Thomas Huser, head of the Biomolecular Photonics Research Group in the Faculty of Physics, said their technique offers a different way to examine cells and does not change the cells in the preparatory stage. Picture of the distribution of the genetic information in an Escherichia coli bacterial cell: Physicists at Bielefeld...Read full article

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