Sentences with phrase «ultrathin needles»

Not exact matches

Looking through a microscope, Youngnam Jin — a postdoctoral fellow in Randy Peterson's lab at Massachusetts General Hospital's Cardiovascular Research Center — arranges one - celled zebrafish embryos, each about 10 minutes old, into rows of 20, spinning them with a micro spatula to turn their nuclei toward the ultrathin glass needle of a micro-injection device.