Hijacked sperm carry chemo drugs to cervical cancer cells - Scientists fitted sperm with tiny four-armed magnetic harnesses that allowed them to be guided by magnets. When the sperm hit a solid tumour, the arms sprung open, releasing the sperm and allowing them to swim into the tumour.

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Hijacked sperm carry chemo drugs to cervical cancer cells - Scientists fitted sperm with tiny four-armed magnetic harnesses that allowed them to be guided by magnets. When the sperm hit a solid tumour, the arms sprung open, releasing the sperm and allowing them to swim into the tumour.