Tag: Material

Mushrooms are suitable for sound insulation. Spent coffee grounds, as a Chinese university research team just discovered, could be used to deliver sustainable thermal insulation. Initially, the grounds were converted into biochar at 700°C, increasing the granules’ porosity from 40% to 70%. These cavities were then filled with a mix of environmentally-friendly solvents. This in turn prevented ethylcellulose, the...

A maze-like material keeps insects away from plants. In France, meanwhile, a startup is creating sustainable pesticides from plant scents as around 80% of harmful insects are drawn to by these odours. The team deciphers which scents are particularly attractive for different species, and replicates the molecules in the lab. These can be used for the targeted defence of...

Minerals found in kidney stones are making chipboard less flammable. The last thing anyone needs is for their EV battery to go on fire. Enter a Chinese research team and its electrolyte for sodium-ion batteries, which doubles as a fire retardant. The liquid compound is stable up to temperatures of 150°C and solidifies at higher temperatures. Meaning that no...

We have octopuses to thank for sustainable suncream. Environmentally-friendly containers for the cosmetics industry, in turn, are the brainchild of a female founder’s startup in London. Their process entails fermenting plant waste and converting it into bio-based synthetic materials. They can be hard or soft, matt or glossy. The products have been certified for home composting by a testing organisation...

For efficiency, the human brain often takes snapshots. But with age, inflamed brain cells can lead to memory loss or dementia. Enter a US-based research team and its nasal spray which can stop or even reverse the process. Made using bio-molecules (microRNAs) developed from neural stem cells, it is delivered via the nose into the wall of the hippocampus....

Paper could replace polystyrene packaging. In Germany, meanwhile, a research team has been developing a process whereby paper bags are made without adhesives. Materials found in paper, you see, already have adhesive properties. First an initial layer of paper is irradiated with a carbon monoxide laser, causing the cellulose and lignin within to break up - similar to melting...

Elephant trunks have inspired a microhydraulic robot. Meanwhile a research team in China has taken its lead from the ancient lamprey fish’s mouth to create its new hybrid suction disc, complete with a soft silicon lip which doubles as a seal on the outer edge. Instead of teeth the disc calls on the knobs of a Shape Memory Polymer...

No one needs kidney stones. Nevertheless, a mineral present in animals’ urinary calculus is helping to make construction materials from sawdust fire resistant. A research team in Switzerland mixed sawdust and struvite (a crystalline ammonium magnesium phosphate), adding an enzyme extracted from watermelon seeds for stickiness. The mixture was then pressed for two days into chipboards. Tests showed that...