Twist and scout

 作者:韶粕     |      日期:2019-03-07 04:02:00
By Ian Sample HOW would you feel about a robot smaller than a grain of rice patrolling your body, hunting down disease? Well, they could be on the way, and they might even be able to cure your ills as well. A team of micromachine experts report this week that they have developed tiny spinning screws that could swim along veins, ferrying drugs to infected tissues,