Subject: Minute machines dive inside a living creature for first time Sat Jan 24, 2015 3:06 am
Researchers at the University of California have managed to implant acid-powered, self-destructing micromotors inside a living animal for the first time. It's hoped the tiny devices could help tackle maladies such as peptic ulcers in the future. The tiny machines just 20 micrometers long and roughly a human hair's width, managed to deliver nano-particles to the stomach of a mouse without any side effects. The self-propelled devices, made of polymer tubes and coated in zinc, self-destruct without leaving any traces of harmful chemicals. “The body of the motors gradually dissolves in the gastric acid, autonomously releasing their payloads, leaving nothing toxic behind,” Professors Liangfang Zhang and Joseph Wang, who lead the research, wrote in the journal ACS Nano.