Navy researchers working on PFAS-free firefighting foams with no health risk Testing is still at a small scale, but U.S. Navy researchers are encouraged by their work to develop new firefighting foams ...

A new plant-based substitute for polyurethane foam eliminates the health risk of the material, commonly found in insulation, car seats and other types of cushioning, and it’s more environmentally ...

Per- and polyfluoroalkyl substances (PFAS) have been used in aqueous film-forming foams (AFFFs) for fighting liquid fuel fires since the 1970s. Fluorine-free foams are foams that do not contain any ...

Foams are everywhere: soap suds, shaving cream, whipped toppings and food emulsions like mayonnaise. For decades, scientists believed that foams behave like glass, their microscopic components trapped ...

Close-up and microscopic images of foam, solid, and hydrogel gas-entrapping materials. [J.D. Byrne, et al., Science Translational Medicine (2022)] Carbon monoxide (CO) is best known as a potentially ...

Researchers have developed a new type of foam – called capillary foam – that solves many of the problems faced by traditional foams. The foam could be used to make lightweight, sustainable materials.

Tokyo, Japan – Researchers from Tokyo Metropolitan University have solved a long-standing mystery behind the drainage of liquid from foams. Standard physics models wildly overestimate the height of ...

The European Union would ban all per- and polyfluoroalkyl substances (PFAS) in firefighting foams under a Feb. 23 proposal from the European Chemicals Agency (ECHA). PFAS are a family of thousands of ...

Nature’s porous materials, bone, coral and cork, are synonymous with strong and lightweight structures. Driven by the prospect of producing a family of materials with unique combinations of properties ...

Liquid foams have a remarkable property: they completely block the transmission of sound over a wide range of frequencies. Physicists have studied how sound is attenuated in liquid foams. Their ...