Materials
While there are already memory materials that are able to change to a given shape when exposed to certain stimuli, researchers from ETH Zurich have created something a little different. Taking inspiration from the humble pine cone, they’ve developed a process that allows a wider variety of materials to be used, that can in turn attain a wider variety of shapes. Read More
Tear-inspired material can be tuned to repel or attract water
Last year, a group of Harvard University scientists led by Dr. Joanna Aizenberg announced the development of a highly-hydrophobic (water-repellant) material known as SLIPS, or Slippery Liquid Porous Surfaces. The material is remarkable, in that it repels virtually any liquid. Now, Aizenberg and colleagues have created a new material inspired by human tears, the repellency of which can be fine-tuned for different applications. Read More
Not even a year after it claimed the title of the world’s lightest material, aerographite has been knocked off its crown by a new aerogel made from graphene. Created by a research team from China’s Zhejiang University in the Department of Polymer Science and Engineering lab headed by Professor Gao Chao, the ultra-light aerogel has a density lower than that of helium and just twice that of hydrogen. Read More
New “super gel” is liquid when cold and stiffens when heated
Gelatins take on a semi-solid state when cool, and become a liquid when heated, right? Well, not always. Chemists from Radboud University Nijmegen, in The Netherlands, have created a “super gel” that behaves in the opposite manner – it’s liquid when cool, and stiffens when heated. What’s more, it reportedly absorbs water 100 times better than other gels. To make it, the researchers copied the protein structure of human cells. Read More
"Dot matrix" bed linen claimed to reduce bedsores
A team of Swiss researchers has developed a new kind of bed linen with the intention of reducing the occurrence of bedsores among bedridden patients. The new "dot matrix" linen is designed to reduce the contact surface against the skin while allowing for greater absorption of problem moisture that can otherwise exacerbate the problem. Read More
It's reckoned that most of the 22 million tons of rubber that is processed every year worldwide goes into making vehicle tires and that once rubber products reach the end of their useful lives, for the most part they end up being incinerated. Even when the rubber residues are reclaimed and re-used to make new products, the lack of techniques for producing high-quality materials means that the recyclables are relegated to secondary products such as arena or playground floor coverings or padded doormats. Looking for new ways to optimize the recycling of rubber waste, researchers have developed a material called EPMT that has the desired material properties and characteristics for use in the manufacture of high quality products such as wheel and splashguard covers, handles, knobs and steerable casters. Read More
Butterfly vs shark: nature's clues to anti-dust materials
Butterfly wings cannot be very far behind geckos' toes so far as sources of inspiration for biomimicry research goes. Various properties of the wings of lepidopterans have triggered research into banknote forgery prevention, light reflection and solar cells. New research from Ohio State University suggests the delicate membranes may hold clues to dirt-resistance surfaces. Read More
In the quest for more efficient commercial aircraft to help reduce fuel consumption, weight reduction without compromising safety is one of the most obvious areas of focus. Researchers at the European Space Agency (ESA) working in the Intermetallic Materials Processing in Relation to Earth and Space Solidification (IMPRESS) Project have used hypergravity to help develop an aircraft-grade alloy they claim is twice as light as the nickel superalloys currently used in conventional jet engines, but boasts equally good properties. Read More
Aerogel is 99.8% air and 1,000 times less dense than glass yet it can withstand high temperature, is robust enough to survive a space launch and delivers 39 times more insulation than the best fibreglass. This exotic substance was invented in the 1930s but recently refined by NASA for the purpose of catching space-dust, Aerogel was used on the Mars Pathfinder rover and its latest assignment is to capture both cometary samples and interstellar particles aboard the Stardust mission. Read More