Materials Science

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A super-strong “tough adhesive” inspired by SLUGS has been created that is biocompatible and binds to tissues with the s...
03/08/2017

A super-strong “tough adhesive” inspired by SLUGS has been created that is biocompatible and binds to tissues with the strength of the human body’s own cartilage. Wet skin is one challenge for medical adhesives. Others are blood, serum, and other fluids that can impair the healing process of various internal injuries. Bio-adhesive materials have often been toxic, inflexible when dry, or incapable of binding to biological tissue properly. [ 168 more words ]

http://materialsscience.news/2017/07/sticky-slug-trail-inspired-medical-adhesive/

Wet skin not a problem with super-strong bio-compatible adhesive.

When travelling at hypersonic speeds, the heat generated can threaten the structural integrity of aircraft as temperatur...
03/08/2017

When travelling at hypersonic speeds, the heat generated can threaten the structural integrity of aircraft as temperatures soar to between 2,000 and 3,000°C. Until now ultra-high temperature ceramics (UHTCs) developed to provide protection for craft and projectiles travelling at five times the speed of sound (Mach 5) or above have not been sufficiently effective. However, a carbide coating developed by researchers at the University of Manchester and Central South University (CSU) China is proving to be 12 times better than conventional Zirconium carbide (ZrC), an extremely hard refractory ceramic material commercially used for cutting tools. [ 234 more words ]

http://materialsscience.news/2017/08/hypersonic-coating-developed-heat-mitigation-flight/

A ceramic coating has been created for that will enable hypersonic travel and delivery by civil and military aircraft and rockets.

Robots could soon be controlled by engineers using a gel inspired by worms. The material expands and contracts based on ...
17/05/2017

Robots could soon be controlled by engineers using a gel inspired by worms. The material expands and contracts based on changing pH levels and ion concentrations. It was developed by studying how the jaw of Nereis virens, a sand worm, forms and adapts in different environments. The pH- and ion-sensitive material can respond and react to its environment, which could be useful for the active control of the motion or deformation of actuators for soft robotics and sensors without using external power supply or complex electronic controlling devices. [ 90 more words ]

http://materialsscience.news/2017/05/jaw-sand-worm-helps-material-adapt-changing-environments/

Natural abilities of the marine worm have inspired the production of self-regulating responsive material

A way to trigger photosynthesis in a synthetic material has been found, which could turn greenhouse gases into clean air...
02/05/2017

A way to trigger photosynthesis in a synthetic material has been found, which could turn greenhouse gases into clean air and produce energy at the same time. The process triggers a chemical reaction in a synthetic material called metal-organic frameworks (M*F) that breaks down carbon dioxide into harmless organic compounds. This can be thought of as an artificial photosynthesis process similar to the way plants convert carbon dioxide (CO2) and sunlight into food - but this method produces solar fuel instead. [ 220 more words ]

http://materialsscience.news/2017/04/bright-future-artificial-photosynthesis-synthetic-material-now-possible/

The process promises a reduction in greenhouse gases linked to climate change, while producing clean energy.

Researchers have developed a new 3-D printing method to create objects that change shape when exposed to heat. The resea...
02/05/2017

Researchers have developed a new 3-D printing method to create objects that change shape when exposed to heat. The researchers created the objects by printing layers of shape memory polymers with each layer designed to respond differently when exposed to heat. “This new approach significantly simplifies and increases the potential of 4-D printing by incorporating the mechanical programming post-processing step directly into the 3-D printing process,” said Professor Jerry Qi of the George W. [ 225 more words ]

http://materialsscience.news/2017/04/objects-created-3-d-printing-can-change-shape-permanently-response-heat/

Researchers have developed a new 3-D printing method to create objects that can transform into different shapes as a result of heat.

A more powerful membrane has been created which can better purify drinking water. Graphene-oxide membranes have demonstr...
18/04/2017

A more powerful membrane has been created which can better purify drinking water. Graphene-oxide membranes have demonstrated the potential of filtering out small nanoparticles, organic molecules, and even large salts but were not capable of sieving common salts in desalination processes. Graphene-oxide membranes can become slightly swollen when immersed in water allowing smaller salts to flow through the membrane along with water, while larger ions or molecules are blocked. [ 93 more words ]

http://materialsscience.news/2017/04/production-clean-drinking-water-made-possible-scalable-membrane/

The promise of graphene-oxide membranes in achieving effective water filtration has been realised with the development of a membrane capable of sieving common salts.

A research team has artificially made Lonsdaleite in a diamond anvil at 400°C, halving the temperature at which it can b...
18/04/2017

A research team has artificially made Lonsdaleite in a diamond anvil at 400°C, halving the temperature at which it can be made in a laboratory. The discovery of the nano-crystalline hexagonal diamond was made possible by collaboration between physicists from Australia and elsewhere around the world including experts from RMIT, the University of Sydney and the USA using state-of-the-art instrumentation. [ 74 more words ]

http://materialsscience.news/2017/04/super-hard-diamond-material-developed-capable-cutting-ultra-solid-materials-mining/

Nano-sized Lonsdaleite, a hexagonal diamond only found naturally at the site of meteorite impacts, has been created.

‘Fuzzy’ fibres are being used to help composites withstand the heat and pressure of rocket engines. A ceramic composite ...
18/04/2017

‘Fuzzy’ fibres are being used to help composites withstand the heat and pressure of rocket engines. A ceramic composite could make rocket engines stronger, lighter and better able to take extreme heat. Silicon carbide fibres have been developed that act like Velcro and can strengthen composites used in advanced rocket engines subject to extreme temperatures of up to 1,600°C (2,912°F). [ 293 more words ]

http://materialsscience.news/2017/04/fibre-class-materials-thermal-resistance-outstanding-due-silicon-carbide-fuzz/

A robust material has been created suitable for use in next generation engines, including rocket motors.

Items such as personal jewellery and cooking utensils may soon be able to use human body heat to generate enough electri...
02/04/2017

Items such as personal jewellery and cooking utensils may soon be able to use human body heat to generate enough electricity to power gadgets and mobile phones. A combination of calcium, cobalt and terbium was found able to create an efficient bio-friendly material capable of generating electricity through a thermoelectric process using heat and cold air. A thermoelectric effect is where the temperature difference in a material generates an electrical voltage. [ 219 more words ]

http://materialsscience.news/2017/03/hot-property-devices-can-powered-material-sensitive-body-heat/

A bio-friendly material can generate electricity using a thermoelectric process involving heat and cold air.

Scientists have developed a sponge with outstanding mercury adsorption properties that works in seconds to clean contami...
02/04/2017

Scientists have developed a sponge with outstanding mercury adsorption properties that works in seconds to clean contaminated water. The sponge material has been created with the application of nanotechnology and researchers said mercury contaminations can be removed from water supplies and lakes in fewer than five seconds, or around five minutes for industrial wastewater. The sponge, which also kills bacterial and fungal microbes, converts the mercury into a non-toxic complex so it can be disposed of in a landfill after use. [ 122 more words ]

http://materialsscience.news/2017/03/mercury-absorbed-sponge-created-using-nanotechnology/

Heavy metal pollution is a real problem in water but a sponge-like material may be the answer.

An electronic skin powered by solar energy has been developed which could give hope to amputees and provide key tactile ...
02/04/2017

An electronic skin powered by solar energy has been developed which could give hope to amputees and provide key tactile function for robots. Researchers have used graphene's optical transparency to power the technology. Graphene allows approximately 98% of the light hitting its surface to pass through it, making it ideal for gathering and generating solar power. Dr Dahiya, from the University of Glasgow’s School of Engineering, who led the research said: “Human skin is an incredibly complex system, capable of detecting pressure, temperature and texture through an array of neural sensors which carry signals from the skin to the brain. [ 172 more words ]

http://materialsscience.news/2017/03/solar-powered-synthetic-skin-assist-prosthetics-function/

Electronic prosthetics have the potential to enable a restoration of touch sensation, say scientists.

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