In this episode of the Rare Earth Exchanges podcast, host Dustin Olsen and co-host Daniel O'Connor engage with Buzz Barstow from Cornell University, who discusses his extensive background in biology and physics, and his innovative work in extracting rare earth elements using microbial methods. The conversation covers the challenges of rare earth extraction, the role of synthetic biology, and the support from ARPA-E in advancing these technologies. Barstow highlights the importance of collaboration and the potential of genetically modified organisms like Gluconobacter in improving extraction efficiency while addressing environmental concerns. In this conversation, Daniel O'Connor and Buz Barstow discuss innovative methods for extracting rare earth elements, focusing on the potential of bio-lixiviants and genetic engineering. They explore the challenges of scaling up production, the importance of alternative feedstocks like cellulosic sugars, and the need for sustainable practices in mining. Buz shares insights on the complexities of genetic editing in bacteria and the future of rare earth extraction technologies, emphasizing the importance of diverse approaches to overcome existing hurdles.

Chapters

00:00 Introduction to Rare Earth Extraction

02:13 Buzz Barstow's Journey and Background

05:40 The Rare Earth Problem and Technological Innovations

09:51 Support from ARPA-E and Collaborative Efforts

12:36 Microbial Approaches to Rare Earth Extraction

18:02 Comparing Traditional and Innovative Extraction Methods

26:28 The Role of Gluconobacter in Rare Earth Extraction

28:01 Patenting and Future Potential

29:27 Innovative Approaches to Rare Earth Element Extraction

30:23 Scaling Up: Short, Medium, and Long-Term Goals

32:28 Genetic Engineering and Bacterial Growth Challenges

34:52 The Role of Glucose and Alternative Feedstocks

36:43 Cellulosic Hydrolysate: A Game Changer for Bio-lixiviants

39:54 Advice for Aspiring Innovators in Rare Earth Mining

42:46 Competing Technologies in Rare Earth Extraction

https://rareearthexchanges.com/news/cornell-scientists-engineer-carbon-capturing-microbes-to-extract-rare-earths-revolutionizing-mining-and-climate-strategy/