Scientists engineer micro robots that consist of two conjoined magnetic microbeads coated in iron oxide debris. They are designed to swim, replicating a fluid motion in the simplest manner possible. Researchers say the microbots could be used for tissue incision or to puncture retinal veins.

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Scientists engineer micro robots that consist of two conjoined magnetic microbeads coated in iron oxide debris. They are designed to swim, replicating a fluid motion in the simplest manner possible. Researchers say the microbots could be used for tissue incision or to puncture retinal veins.