Making short-wave infrared light visible with a single component

Infrared (IR) light is invisible to humans. However, some animals, such as rattlesnakes or bloodsucking bats, can perceive IR radiation and use it to find food. But even for humans, the ability to see in the short-wave IR ...

Exotic magnetic states in miniature dimensions

We are all used to the idea that simpler units in nature interact to form complex structures. Take, for example, the hierarchy of life, where atoms combine to form molecules, molecules combine to form cells, cells combine ...

Creating cotton that is fireproof and comfortable

State-of-the-art flame retardant cotton textiles suffer from release of formaldehyde and are uncomfortable to wear. Empa scientists managed to circumvent this problem by creating a physically and chemically independent network ...

Prestressed plasters for old buildings

Bent concrete beams, cracks on the undersides of bridges, risk of rust for the reinforcement: In Switzerland, many structures are getting on in years. Take national roads, for example: According to the 2019 report of the ...

Liquid core fibers: A data river runs through them

Data and signals can be transmitted quickly and reliably with glass fibers—as long as the fiber does not break. Strong bending or tensile stress can quickly destroy it. An Empa team has now developed a fiber with a liquid ...

Molecules in collective ecstasy

"What we see here is energy transfer that is much faster than in any semiconductor," says Jakob Heier. The physicist works in Empa's Functional Polymers lab, and the discovery he has made with his team could cause a stir ...

Detoxifiers from the landfill

The production of chemicals is a cumbersome business. Often, only a small part of what is actually wanted is produced in the factory. The large remainder is unusable—or even worse. Examples? The defoliant "Agent Orange" ...

Shiny mega-crystals that build themselves

An international team led by Empa and ETH Zurich researchers is playing with shape-engineered nanoscale building blocks that are up to 100-times larger than atoms and ions. And although these nano "Lego bricks" interact with ...

Worn tires could be reused in new asphalt roadways

Swiss drivers wear out countless tires. Instead of incinerating them, they could be reused locally: The asphalt of various countries has long contained rubber from used tires. Empa and its partners from industry are adopting ...

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