New filtration material could remove long-lasting chemicals from water

It's nice to see this research. I'd like to see more research on other abundant natural/agricultural/food-grade materials for this purpose. As the article says, silk supply might be insufficient for this to work globally. It would be nice to see multiple natural materials competing for the title of "best PFAS filter".

It sounds kind of complicated to manufacture though.

The researchers used a self-assembly method in which the silk fibroin protein is suspended in water and then templated into nanofibrils by inserting “seeds” of cellulose nanocrystals. This causes the previously disordered silk molecules to line up together along the seeds, forming the basis of a hybrid material with distinct new properties.

This is science-gibberish to me. I wonder how strong or long-lasting the filters are. If they end up being extremely cheap, I guess it's okay for them to be replaceable, but anytime we're talking about molecules I get the feeling these technologies are going to be very expensive but also short-lived.

I'd be happy to buy a filter like this for my sink if it were affordable.