Remote-controlled spermbots could be used to fertilize eggs

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Scanning Electron Microscopic image of a rolled-up microtube, with the bull sperm cell at the tube's end (Photo: IFW Dresden, Germany)

The sperm cell approaches the microtube (Image: IFW Dresden, Germany)

Spermbots created at IFW Dresden approach an egg, and the microtube falls away (Image: IFW Dresden, Germany)

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