How Do You Control A Spermbot? Try A Magnetic Field, University of Toronto Study

Take bull sperm, mix in some nanotubes, and what do you get? Why the very first spermbot, of course. Eventually, these biobots could be used to shepherd individual sperm to eggs or to deliver targeted doses of drugs. Oliver Schmidt and colleagues at the Institute for Integrative Nanosciences in Dresden, Germany, combined individual sperm cells with tiny magnetic metal tubes to create the first sperm-based biobots.

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