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 ...

Textiles can be coated with the biopolymer chitosan and thus made water-repellent by binding hydrophobic molecules. The good thing is that this can also replace toxic and petroleum-based substances ...

I’ve covered battery breakthroughs for years, but few ideas feel as counterintuitive—and as promising—as turning crab shells into high‑performance power packs. By pairing zinc metal with a polymer ...

Standing outside a boutique seafood processor in Juneau on a sunny September afternoon, Zach Wilkenson held a handful of what looked like pulverized corn flakes. Wilkinson said he always knew there ...

Treatment plants in the United States process about 34 billion gallons of wastewater every day, according to the Environmental Protection Agency. But conventional treatment products that contain ...

Crabmeat is delicious—that’s an unassailable, garlicky buttery truth. But here’s something you might not know about your predilection for boiled crustacean: Every year, about six to eight million tons ...