From Newswise: Tiny "nanotubes" that assemble themselves using the same chemistry as DNA could be ideal for creating better artificial joints and other body implants.

A novel method that uses bacteria to mine valuable minerals from the ocean has been developed. Nodules collected from the Indian Ocean seabed can be treated to extract scarce land-based minerals in an environmentally sound way.

Via Newswise:
Purdue team wins Rube Goldberg national contest.