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Researchers say their proof-of-concept is a major step toward designing a nanocage that carries medicine around the body and targets specific diseased cells.
Scientists at the Chonnam National University in South Korea have developed a microscopic robot that can detect and treat cancer from inside the body.
Researchers say they can zap implants with electrical currents to release specific amounts of medication to targeted areas of the body.
Using $100 worth of off-the-shelf electronics and sprays of alcohol, scientists sent the message 'O, Canada' a few meters across open space before it was decoded by a receiver.