Tag: Sustainability

Seaweed can be used as a fire retardant. In Berlin, meanwhile, a female designer has developed a thin algae-based film and coated it with a natural dye. The aim? To stop still edible food being wasted. Her film changes colour according to the pH value of what it’s covering, reacting upon contact with gases like ammonia, produced when fish...

Trains offer sustainable transportation, especially when they remove CO2. Buses, too, at least compared with private cars. But the average usage rate of public transportation is only 15% in Europe. The electric ‘collective’ taxis developed by an Italian startup could soon change all that, because on shared routes, their modules combine together to make buses. Depending on the desired...

Security labels without silicon can prevent theft. Still, no electronic sensor functions without a wireless connection. The power supply required for such devices has an impact on battery size. Which is why a Norwegian-based startup has developed a new circuit architecture for wireless chips, so that they work in the subthreshold region. At 3.3 volts, conventional components need around...

Recycling rare earths, which are vital for electronic components, is critical. Carbon dioxide is reusable, too, and can generate sustainable electricity - just like in hydroelectric plants. In their test facility, a research team in Texas exchanged water for supercritical CO2. Above a temperature of 31℃ and pressure of 74 bar, sCO2 resembles a gas, but acts more like...

A special bra can help detect early-stage breast cancer. When it comes to skin cancer, early detection is equally vital. In large parts of sub-Saharan Africa, however, treatment is either scarcely available or unaffordable. Which is why a 14-year-old schoolboy has developed a soap to help those affected access a potential cure. Alongside coconut oil, shea butter and honey,...

With a simple box, cars could be safe from theft. Tags on consumer goods are increasingly fitted with an integrated wireless module, which triggers an alarm if the item is stolen. Still, the mix of paper, electronics and adhesives used to make them is equally alarming. Now, a London-based startup is hoping to combat the hard-to-recycle combination with a...

Oyster shells are becoming fashionable. Materials made from willow fibres even protect against harmful UV rays. Now, a former female Masters student in Germany has developed a yarn that keeps water at bay even when immersed in it. Her invention, which is made from recycled and modified plastic, is also completely free from harmful forever-chemicals. Additionally, it protects against...

Recycled glass is saving beaches from erosion; while a remote-controlled buoy could rescue those in peril at sea. Seaweed’s high CO2 uptake means that it is contributing significantly to climate rescue. Still, Sargassum, a brown algae that spreads rapidly (see the 5,000 mile long slick in the Atlantic) has unwanted side effects. It deprives marine life of vital light...