Materials

Graphene has a lot of useful properties, but magnetism isn’t usually one of them. Now, researchers have managed to induce an “artificial magnetic texture” in graphene, which could have major implications for the emerging field of spintronics.

Unfortunately concrete production is a major source of carbon dioxide in the atmosphere. Now engineers at Purdue University have developed a new cement recipe that can absorb CO2 twice as fast as usual, hopefully turning it into a useful carbon sink.

Stanford scientists have developed a new hydrogel with a Velcro-like molecular structure, letting it last longer at body temperature. The hope is that it could be injected into a patient to deliver drugs over weeks or months as it slowly dissolves.

Researchers at Brown University have developed a new way to make super-hard metals, up to four times harder than usual. The team made nanoparticle “building blocks” that could be fused together under pressure, thanks to a chemical treatment.

A touch of chili peppers can spice up just about any dish – and maybe, it turns out, even solar cells. Researchers have now found that adding a sprinkle of capsaicin to a perovskite precursor can improve the efficiency of solar cells.

Researchers have found that the concrete walls in a decommissioned power plant in Japan have not only kept their strength over the decades but have actually gotten stronger with use, thanks to a rare mineral also found in ancient Roman concrete.

Mundane as it may seem, glass is a surprisingly mysterious material. Now scientists at the University of Konstanz have identified a new state of matter called liquid glass, which has some unusual properties.

Sweat is important for keeping us cool, but too much of it isn’t very pleasant either. Now, researchers at NUS have developed a new film that can quickly absorb sweat – and better still, potentially use the moisture to power wearable electronics.

Researchers at Drexel University have created “Faraday fabrics” that can block almost all electromagnetic waves. The key ingredient is a 2D material called MXene, and the development could help protect wearables from interference and people from potentially dangerous radiation.

A simple home test for breast cancer and a UV energy-harvesting window made of recycled materials are the big winners of this year’s James Dyson Awards. The annual competition encourages university students to develop innovative solutions to problems.

Researchers have grown “forests” of carbon nanotubes (CNTs) longer than ever before. Using a new method, the team grew bunches of nanotubes up to 14 cm (5.5 in) long, which should help make it easier to scale up production of this versatile material.

An ESA initiative is researching new materials for spacesuits and other equipment that are better able to withstand the destructive effects of lunar dust, which is made of razor-sharp and abrasive particles that cling to everything.