Congrats to Mas Sumbramanian and his team out at Oregon State University for the discovery! He said the following in an official OSU press release:
"It was serendipity, actually; a happy, accidental discovery.
The basic crystal structure we’re using for these pigments was known before, but no one had ever considered using it for any commercial purpose, including pigments.
Ever since the early Egyptians developed some of the first blue pigments, the pigment industry has been struggling to address problems with safety, toxicity and durability."