Our bodies often dispatch stem cells to mend or replace biological damage, but how these repair agents make their way through dense tissue to arrive at the scene had been a mystery. “How stem cells squeeze through tissue openings a hundred to a thousand times smaller than themselves had been a perplexing question,” says Ovijit Chaudhuri, professor of mechanical engineering.
Click here for original story, Stem cells use a piston-like engine to ‘drive’ to their destinations
Source: Phys.org