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SD Mines Researchers Hope to Sanford Lab Extremophiles to Create Low-Cost Renewable and Biodegradable Polymers

Courtney Carlson, a senior majoring in Chemical Engineering at SD Mines (right) and researcher Navanietha Krishnaraj Rathinam, Ph.D., (left) work in the Chemical and Biological Engineering and Chemistry (CBEC) building at SD Mines. Carlson and Krishnaraj Rathinam are using benchtop reactors in the lab to perform CNAM-Bio research that seeks to optimize and scale-up the manufacturing of biopolymers from lignocellulosic biomass using extremophiles. The center is a scanning electron microscope image of the bacteria the research team are studying.

A team of researchers with the Composite and Nanocomposite Advanced Manufacturing – Biomaterials Center (CNAM), led by David Salem, Ph.D., at the South Dakota School of Mines & Technology are using microbes that were discovered deep underground in the Sanford Underground Research Facility (SURF) in an attempt to make low-cost plastics that are renewable and biodegradable.

“Most commercial polymers, or plastics are petroleum based which is a non-renewable resource,” says Salem. The team is working to find ways to mass manufacture low-cost plant based plastics and composites. “A problem with bio-based polymers is they are expensive, and one goal of this center is to use genetically engineered microbes to help reduce the cost of manufacturing these kinds of plastics,” says Salem. “Another goal is to engineer the properties of the biopolymers and biocomposites to serve a wide range of commercial applications.”

There is a huge potential for new green-based manufacturing jobs in the area if the center succeeds in developing mass manufacturing techniques for turning plants into low-cost bio-based polymers.

“The top ten petroleum based polymers make up about a $500-billion global market,” says Salem. “These biopolymers potentially can cover the whole range of properties of those.”

A group, led by Rajesh Sani, Ph.D., from SD Mines’ Department of Chemical & Biological Engineering, have isolated th...

Last Edited 6/20/2017 10:39:43 AM [Comments (0)]