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Graphene is the world's strongest, thinnest and most conductive material, made from carbon. Graphene's remarkable properties enable exciting new applications in electronics, solar panels, batteries, medicine, aerospace, 3D printing and more!
Recent Graphene news:
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Researchers at the Amrita Institute of Medical Sciences and Research Centre in India demonstrated that graphene oxide nanoflakes can enhance the properties of artificial composites to provide supportive scaffolds that encourage bone repair.
According to the scientists, a great challenge is to design a biomaterial that should match the properties of native healthy bone, Properties like biocompatibility, chemical composition, porosity, degradation and mechanical stability that are critical in determining the success of the biomaterial. Traditional treatments for bone fractures that fail to heal spontaneously are bone grafts taken from elsewhere in the patient's body, causing pain and potential damage to the harvested site.
Scientists from the Novosibirsk Nikolayev Inorganic Chemistry Institute and the Krasnoyarsk Biophysics Institute have invented a new composite material made of graphene and nano-diamonds. By placing nano-diamonds on the surface of vertically aligned tubes of graphene (probably carbon nanotubes), the scientists created a unique composite material that glows under the impact of a weak electric field.
The researchers say this is the prototype of a tiny light fixture, a nano-tube with a glowing nano-diamond on top. Such structures can be used in a variety of fields, from new types of displays to health diagnostics techniques.
Scientists at the University of Melbourne, the Australian Synchrotron and La Trobe University discovered that graphene can distinguish the four nucleobases that make up DNA and potentially be used to sequence DNA without the need for labels.
The researchers found that each nucleobase influenced the electronic structure of graphene in a measurably different way. When used together with a nanopore, a single DNA molecule would pass through the graphene-based electrical sensor enabling real-time, high-throughput sequencing of a single DNA molecule. The use of graphene to electrically sequence DNA promises to improve the speed, throughput, reliability and accuracy whilst reducing the price compared to current techniques.
Arvia, a UK-based water and wastewater treatment company, has secured £4 million in its latest round of investment funding. The company developed its own graphene-based proprietary material called Nyex which removes organics, contaminants and micro-pollutants from wastewater and is regenerated in-situ in the novel organics destruction cell (ODC) process. The technology was spun-out of Manchester University’s School of Chemical Engineering.
Arvia’s modular treatment units can remove and oxidise low, trace toxic and problematic pollutants. The company says it has numerous test units to deploy into the market and are looking for early adopters to collaborate with Arvia in applying this technology.
Researchers at China's Tsinghua University used ion-selective membranes of ultrathin graphene oxide (GO) to develop a novel, ion-selective but highly permeable separator for significantly improving both the energy density and power density of lithium-sulfur batteries. This resulted in a highly-stable and anti-self-discharge lithium-sulfur cell.
Polysulfides are materials generated at the cathode side, diffuse through the membrane, react with lithium anode, and shuttle back. During the process, polysulfides dissolve and irreversibly react with metal lithium and organic components, inducing the destruction of the cathode structure, depletion of the lithium anode, and loss of active sulfur materials. Commonly used separators in battery systems are porous polymer membranes, which separate the two electrodes while having little impact on the transportation of ions through the membrane. The researchers' design was of a GO membrane, sandwiched between cathode and anode electrodes, which efficiently prohibited the shuttle of polysulfides through the membrane.