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"Backpacking" Bacteria Ferry Nano-Medicines

Scientists looking for ways to get minute doses of drugs, so-called "nano-medicines", into the right places in the human body have turned to "backpacking" bacteria to ferry the cargo.

"Bacteria can do this easily, and we have established that bacteria can carry cargo," he added.

The other advantage with using bacteria is they respond to specific biochemical signals. It is possible, for instance, to control their direction and destination in the body so that once they reach their target, they settle, deposit their "cargo" and grow naturally.

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