Materials

Engineers at Purdue University have been at the cutting edge of reflective paint research for some time, and have just produced the whitest paint ever created, which they say reflects 98.1 percent of sunlight and could be used to keep buildings cool.

The cement used to make concrete carries quite a carbon footprint. Now, scientists at the University of Tokyo have created a cement-free alternative that directly bonds sand particles together using a reaction between alcohol and a catalyst.

Researchers at the University at Buffalo have developed a new method for 3D printing graphene aerogels that work well as water filters. The team says this technique helps make graphene aerogels scalable and stable enough to be used over and over.

Plastic is a lot easier to work with than glass, which is one of the reasons it's used so much more often. That may be about to change, though, thanks to a new process that allows glass to be injection-molded – just like plastic.

Pulp mills generate significant amounts of waste, and we're seeing scientists get quite creative with how it might be put to use. The latest example sees it used as a filler material for cement, which proved to be stronger and more resilient.

Scientists in the US have introduced a new player to the world of 2D materials in the form of an ultra-thin, ultra-strong material they've dubbed borophane, which they see one day finding use in advanced forms of electronics.

Researchers at Rice University have developed a new process to convert old tires into graphene, which can then be used to make concrete. Not only is it more environmentally friendly, but the team says the resulting concrete is substantially stronger.

Researchers at Yale University have developed a bioplastic made using wood byproducts. The material boasts high strength and durability, but also has the ability to degrade completely in the space of just three months.

Taking inspiration from the way sea cucumbers can strengthen their exterior when in danger, scientists in Germany have developed a novel wafer-thin paper material that can transition from firm to soft via an electrical switch.

Researchers have demonstrated how patterns of string carefully laid out by robotic arms can be used to bind asphalt together in place of environmentally damaging bitumen, resulting in greener roads that are also easier to recycle after use.

Ordinarily, if you want to build a device that's highly electrically conductive, you have to use rigid metals. Now, however, scientists at Carnegie Mellon University have created a soft and flexible material that fits the bill.

MIT engineers have found a new use for a common plastic, spinning polyethylene into fabric that can passively cool the wearer by allowing heat through and moisture to evaporate. The discovery could see waste plastic bags being turned into sportswear.