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COULD MAGNETIC BACTERIA BE THE NEXT GENERATION OF MICROBOTS?

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The cutting edge of robotics may not be a smarter Siri or a less-creepy humanoid Japanese robot. It might be a swarm of bacteria, compelled to do our bidding through a remotely controlled magnetic field.

Some of the biggest technological advances of the past two decades have involved scaling things down. The development and continual improvement of microprocessors has revolutionized home computing. And the emerging field of nanomedicine promises to transform biomedical science in many ways: from targeted drug delivery to tissue repair at the cellular level.

However, working at the microscale (thousandths of a millimeter) or nanoscale (millionths of a millimeter) poses major challenges. To create a circuit out of microscopic components, we need very small tools that can do the work for us. We need microscopic robots, or microbots.

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