It may sound like the plot of 'Fantastic Voyage', but miniature robots that can travel around the human body and dispense medicines could soon be a reality.Researchers at Stanford University have developed a 'millirobot' that can roll, flip, spin, and even swim to enter narrow spaces.The fingertip-sized machine is inspired by the Japanese paper-folding art of origami and can be controlled using magnets – carrying drug treatments directly to a tumour, blood clot, infection or pain point.
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