Graphene News - Page 1

Scientists at the University of Sussex have developed a technique for making tiny microchips from graphene and other 2D materials, using a form of ‘nano-origami’.

By creating distortions in the structure of the graphene, the researchers were able to make the nanomaterial behave like a transistor. “We’re mechanically creating kinks in a layer of graphene,” says Professor Alan Dalton of the School of Mathematical and Physics Sciences at the University of Sussex. “It’s a bit like nano-origami. Using these nanomaterials will make our computer chips smaller and faster. It is absolutely critical that this happens as computer manufacturers are now at the limit of what they can do with traditional semiconducting technology. Ultimately, this will make our computers and phones thousands of times faster in the future.”

Researchers affiliated with the Graphene Flagship from RWTH Aachen University, Universität der Bundeswehr München and AMO in Germany, KTH Royal Institute of Technology in Sweden and with Protemics have reported a new method to integrate graphene and 2D materials into semiconductor manufacturing lines, a milestone for the recently launched 2D-EPL project.

Image from Nature Communications

Two-dimensional (2D) materials have a huge potential for providing devices with much smaller size and extended functionalities with respect to what can be achieved with today's silicon technologies. But to exploit this potential, it is vital to be able to integrate 2D materials into semiconductor manufacturing lines - a notoriously difficult step. This new technique could be a step in the right direction as far as solving this problem is concerned.

Versarien recently reported that its graphene-enhanced face mask has met the FFP3 standard, the highest standard under the European EN149 standard for filtering half face masks.

As previously outlined in its half-year results, the advanced materials engineering group’s wholly owned Chinese subsidiary, Beijing Versarien Technology Company Limited, has been working with its partner on further developments of the masks. Specifically, this included the testing of a prototype second generation graphene enhanced face mask conducted in China at the Analytical and Testing Centre of Capital Regions which showed a 99.92% antiviral activity rate against the SARS-CoV-2 virus.

Haydale has announces that Bolflex has purchased 80 kg of its functionalized nano-enhanced rubber masterbatch for use in its premium soles range for shoe production. This follows Haydale recently increasing the elastomer capability of its functionalized nano-enhanced rubber masterbatch.

Haydale's products are incorporated into the styrene-butadiene rubber (SBR) compound offering increased tear strength, abrasion resistance, flex resistance, slip resistance and coefficient of friction - all essential properties for footwear.

Researchers at Uppsala University, in collaboration with Swedish graphene materials company Graphmatech, have reported a potential breakthrough in the printability of copper for laser additive manufacturing (AM), significantly lowering the reflectivity of copper powder to achieve more dense printed parts.

Copper powder was coated using Graphmatech’s patented graphene technology. Credit: Simon Tidén / Uppsala University

Additive manufacturing of metals can help produce customized and complex designs on demand and offer more sustainable manufacturing with reduced waste and lower material requirements. However, some metals, including pure copper, have proven a challenge due to their high reflectivity. At the wavelengths commonly used in laser powder bed fusion (the dominant technology in metal AM), only a small part of the energy is absorbed by the material, resulting in low density printed parts. This is what the team set out to address.

Grapheal, a developer of graphene-based embedded biosensors for on-site diagnostics and remote patient monitoring, has announced that it has raised a total of EUR1.9 million (almost USD$3 million) in equity and non-dilutive sources, including seed financing from Novalis Biotech’s Acceleration Fund, several innovation grants, and Bpifrance convertible notes and loans.

The funds will be used to advance the commercialization of Grapheal’s flexible graphene-based biosensor technology. This sensing technology combines novel electronic nanomaterials, embedded wireless electronics, software data analysis, and medical cloud IoT technologies. The first two applications of the technology will be a new generation digital COVID-19 test (TestNPass) for rapid screening in high-traffic areas, such as airports, and a wound care digital assistant (WoundLAB) to improve the monitoring of hard-to-heal wounds. The funds will also be used to validate the two devices in the field and complete clinical studies, respectively.

A new Australian battery casing company called Vaulta has announced that it is working with Quickstep, Australia’s largest independent aerospace advanced composites manufacturer, to develop smarter technology for renewables, manned and unmanned drones and electric flight.

The two Australian companies have signed a memorandum of understanding to pair Vaulta’s innovative graphene-enhanced cell casing technology with Quickstep’s manufacturing capability and market reach as it looks to move further into the high-growth market of electric-powered land and air vehicles. The two companies will be actively working together on a joint proposal for Australian Defense.