Washington-based startup Tidal Vision upcycles discarded crab shells to produce chitosan — a positively charged biopolymer with myriad applications in sustainable water treatment, textile production, ...

Who works: Some 180 employees across three divisions manufacture liquid chitosan products used by three industries across three continents. What works: Tidal Vision is on track to divert 5.4 million ...

Alaska crab shells are fueling an eco-revolution that will drive new income streams for fabrics to pharmaceuticals to water filters. And for the first time, it is happening in the US and not overseas.

Researchers have developed a process to turn crab shells into a bioplastic that can be used to make optical components known as diffraction gratings. The resulting lightweight, inexpensive gratings ...