It's a scene worthy of the modern reboot of "Fantastic Voyage." A tiny rocket-shaped projectile breaches the border of a cell wall and begins to work, like an egg beater, to whip up the cell's innards, or puncture its membranous wall with a battering-ram motion.
Although a scene like this might take place in James Cameron's modern retake on the 1966 film classic (if it ever comes out), it's something scientists at Penn State University and Weinberg Medical Physics in Maryland have already witnessed.
In their work, which will appear in the journal Angewandte Chemie International Edition, the researchers developed microscopic metallic motors known as nanomotors and then injected them into living human cells, marking what they say is the first time such an experiment had ever been done. … Read more