A new paper released by researchers at the Swiss Federal Institute of Technology in Lausanne (EPFL) details the creation of gelatin-based actuators, a technology that could bring us closer to edible robots.
Its an admittedly strange dream, one the team hasnt quite wrapped its head around at this early stage. In a conversation with TechCrunch, Dario Floreano, the director of the schools Laboratory of Intelligent Systems, admits that the team may have put the cart in front of the horse in their research. The workwas apparently born out of a challenge to create something new, rather than the desire to address any specific functionality.
A year ago [grad student and co-author Jun Shintake] came to me and said, we are doing all of these bio-inspired robots, but biological systems are eaten and our systems are not, he explains. I thought thats very interesting. Food and robots have very different constraints and properties. Even before thinking about what we could make out of them, I though it was a very interesting challenge to see if we can marry these two fields.
Floreano lists off a number of potential applications for edible robots, including food that can walk itself to hotter or colder locations or inch its way toward the human or animal its looking to feed. Whats more immediately compelling, however, is the possibility of delivering automated medication, as touched upon in a recent Recode article that helped bring the EPFL study to wider attention.
Thats definitely a very interesting application, says Floreano, because you may carry pharmaceutical components to a location where you want them to have an effect.
The research follows a similar study issued by MIT last year that detailed the creation of an origami robot made from dried pig intestines that essentially unfolds in an attempt to capture and removed harmful swallowed items, like batteries. What potentially sets EPFLs research apart is the creation of fully digestible actuators that can be broken down by the human body.
The creation of the actuators is part of the teams ongoing research into soft robotics, a sub-field of robotics inspired by nature that make for components that better comply with their environment. Notable applications for the technology include robotic grippers capable of conforming to a wide variety of different shapes.
Once inside the body, the robots could utilize internal chemical reactions to drive movement. They could also leveragenon-toxic batteries designed as part of the growing field of edible electronics that cant be digested but can pass through the body without harm.
As for taste, its pretty much non-existent on the current gelatinous version of the EPFLs early-stage edible robot. Though the researchers are teaming up with nearby cole htelire de Lausanne, a world-class hospitality school, to create better-tasting robots in the future.
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