Researchers at Ohio State University have discovered a way to deposit gene therapy agents in living cells without the use of a needle. Images courtesy of Ohio State University. Above, two tiny reservoirs (measured in micrometers, or millionths of a meter) are connected by a nanometer- (billionth of a meter) sized channel, which is too small to be seen at this magnification.

Above, a close-up of the nanometer- (billionth of a meter) sized channel. Below, a human immune cell inside a reservoir. All images courtesy of Ohio State University.

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