"To feel is to be vulnerable. So when we consider vulnerability to be a weakness, we consider feeling one’s emotions to be so, too, she says. But being vulnerable connects us with others. It opens us up to love, joy, creativity and empathy."
Tiny, Logical Robots Injected into Cockroaches
Nanotechnology just got a little bit smarter.
At the Institute of Nanotechnology and Advanced Materials at Israel’s Bar-Ilan University, Ido Bachelet led a team of scientists in building tiny robots that can respond to chemical cues and operate inside a living animal. More than that, they can operate as logic gates, essentially acting as real computers.
That gives the nanobots — on the order of nanometers, or one-billionth of a meter — the ability to follow specific instructions, making them programmable. Such tiny robots could do everything from target tumors to repair tissue damage.
The experimenters used a technique called “DNA origami” to make the robots. DNA comes in a double-helix shape, making long strings. And like yarn, the strings can be linked together to make different shapes. In this case, the researchers knitted together DNA into a kind of folded box with a lid, a robot called an “E” for “effector.” The “lid” opened when certain molecules bumped into it.