Renee Zhao holds up milli-spinner device for spinning away blood clots. August 2025.
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This tiny robot spins blood clots away

CNN catches up with Stanford University assistant professor Renee Zhao, who has helped develop a micro magnetic device called the milli-spinner that she hopes could one day revolutionise treatment for stroke patients.

2:37 • Source: CNN
Tech For Good 7 videos
Renee Zhao holds up milli-spinner device for spinning away blood clots. August 2025.
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This tiny robot spins blood clots away
2:37
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• Source: CNN
Robot tortoise made by students at DGIST in South Korea. July 2025
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Robot snakes and tortoises? Meet the reptiles of the future
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Robot insect made by students at MIT. July 2025
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This tiny robot insect could one day pollinate crops
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This spider-inspired drone can walk, perch and fly
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Cyborg beetles with 'electronic backpacks' could help find disaster victims
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Ant-inspired navigation and biomorphic whiskers help drones find their way home
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Racing the world's fastest quadruped robot in the 100m sprint
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