Korean team designs graphene-based transparent flexible battery

Researchers at Daegu Gyeongbuk Institute of Science and Technology (DGIST) have developed film-type, graphene-based multi-functional transparent energy devices.

DGIST develops film-type  graphene-based multi-functional transparent energy devices image

Senior researcher Changsoon Choi's team actively used single-layered graphene film as electrodes in order to develop transparent devices. By using a high-molecule nano-mat that contains a semisolid electrolyte, the research team increased transparency (maximum of 77.4%) to see landscape and letters clearly.

Graphene oxide layers made to mimic biological channels may clean up pharmaceuticals production

KAUST researchers have tailored the structure of graphene-oxide layers to mimic the shape of biological channels, creating ultra-thin membranes to rapidly separate chemical mixtures. This may have the potential to inspire new materials to clean up chemical and pharmaceutical production.

2D-dual-spacing channel membranes for high performance organic solvent nanofiltration image

"In making pharmaceuticals and other chemicals, separating mixtures of organic molecules is an essential and tedious task," says Shaofei Wang, postdoctoral researcher in Suzana Nuñes lab at KAUST. One option to make these chemical separations faster and more efficient is through selectively permeable membranes, which feature tailored nanoscale channels that separate molecules by size.

The Graphene Flagship is looking for new industrial partners for its core 3 project

The Graphene Flagship has announced a call out for new industrial partners to bring specific industrial and technology transfer competences or capabilities that complement the present GF consortium in the next core project (Core 3).

The Graphene Flagship is looking for companies with specific expertise - for example MRAM tools developers to leverage solutions for graphene-spintronic stacks, developers of graphene related materials based laser systems and instrumentations for coherent Raman imaging, makers of graphene-based fibers, yarns and textiles, automotive companies with expertise in fuel-cells, industrial graphene-based supercapacitors makers and more.

Graphene oxide assists in purifying water without chlorination

Scientists from the National University of Science and Technology "MISIS" together with their colleagues from Derzhavin Tambov State University and Saratov Chernyshevsky State University have shown a way for graphene oxide to purify water, making it drinkable, without further chlorination. "Capturing" bacterial cells, it forms flakes that can be easily extracted from the water.

Graphene oxide helps purify water image1) Graphene oxide, added in water 2) Water after purification with graphene oxide 3) Graphene oxide 'flakes' with bacteria before extraction

The team has conducted an experiment, injecting graphene oxide into solutions (nutrient medium and the saline) containing E.coli. Under the terms of the experiment, saline "simulated" water, and the nutrient medium simulated human body medium. The results showed that the graphene oxide along with the living and the destroyed bacteria form flakes inside the solutions. The resulting mass can be easily extracted, making water almost completely free of bacteria. If the extracted mass is then treated with ultrasound, the graphene can be separated and reused.

New graphene fiber combines the electrical properties of an electrode with the mechanical properties of a suture

Engineers at the University of Wollongong are collaborating with surgeons at the University of Texas at Dallas to develop materials that can provide targeted medical treatment. An emerging field called electroceuticals, where electrical stimulation is used to modify the behavior of tissues and organs affected by illness, reportedly shows promise.

Part of this research focuses on utilizing new material developments and additive manufacturing techniques to develop implantable structures that can monitor, maintain and restore function in neural tissues. However, one of the biggest barriers is finding electrode materials that can be safely implanted in the body. Materials like metal are too rigid and can damage tissues.

Directa Plus extends graphene-enhanced clothing partnership with Alfredo Grassi

Directa Plus and clothing group Alfredo Grassi have extended their exclusive relationship to develop graphene-enhanced clothing for up to a further three years. The two companies will focus on the use of graphene to enhance military outerwear as well as work-wear for organizations like the Italian police and fire services.

Directa Plus graphene-enhanced textiles development with Grassi image

Directa Plus and Grassi have already been working together for three years and reportedly produced more than 80,000 meters of fabric enhanced with graphene.

Graphene ribbons could enable new designs for optical quantum computers

Scientists from the University of Vienna and the Institute of Photonic Sciences in Barcelona have shown that tailored graphene structures enable single photons to interact with each other, which could lead to new designs for optical quantum computers.

Photons barely interact with the environment, making them a leading candidate for storing and transmitting quantum information. However, this feature also makes it especially difficult to manipulate information that is encoded in photons. In order to build a photonic quantum computer, one photon must change the state of a second. Such a device is called a quantum logic gate, and millions of logic gates will be needed to build a quantum computer. One way to achieve this is to use a so-called 'nonlinear material' wherein two photons interact within the material. Unfortunately, standard nonlinear materials are far too inefficient to build a quantum logic gate.