Laser sets quail embryos' hearts racing

 作者:段庋     |      日期:2017-04-06 06:01:00
WHAT makes your pulse quicken? For the millimetre-size hearts of quail embryos, a laser does the trick. We already knew that light can stimulate nerve activity, and two years ago Nicholas Smith at Osaka University, Japan, showed that 8-millisecond bursts of laser pulses could synchronise the pulsing of heart cells in culture. But now a team led by Andrew Rollins at Case Western Reserve University in Cleveland, Ohio,