Metabolix is moving forward with its plans to produce bioengineered polymers from crops other than corn. The Massachusetts company announced it has completed a field trial of tobacco, genetically engineered to “express” polyhydroxyalkanoate (PHA) biobased polymers. In the Metabloix plan, crops such as switchgrass are bioengineered to create a polymer that grows within the plants’ molecular structure.
Tobacco will not be one of those plants when, and if, the idea goes commercial. “Tobacco was one of the crops they were working with in the lab and they were able to gain field trials,” says a company spokesperson. “They saw it as an opportunity to use it as a test crop to lay the groundwork for planning and permitting activities for field trials in bioengineered, non-food oilseed and biomass crops (such as switchgrass and sugarcane) producing PHA.”
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
A self-propelled robot developed by a team of researchers headed by MIT promises to detect leaks quickly and accurately in gas pipelines, eliminating the likelihood of dangerous explosions. The robot may also be useful in water and petroleum pipe leak detection.
Aerojet Rocketdyne has built and successfully hot-fire tested an entire 3D-printed rocket engine. In other news, NASA's 3D-printed rocket engine injectors survived tests generating a record 20,000 pounds of thrust. Some performed equally well or better than welded parts.
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