Cornell University researchers have created wireless robots small enough to sit on a human hair that operate autonomously, using light as a power source.
The Antbots combine a photovoltaic cell, an integrated circuit for controlling and directing power, and hinged legs to provide locomotion.
The researchers manufactured the Antbots' integrated circuits using a 180-nanometer silicon fabrication process.
They said said the Antbots could be employed for environmental cleanup and monitoring, targeted drug delivery, cellular monitoring or stimulation, or microscopic surgery.
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