New method to produce graphene nanoribbons could promote use in telecommunications applications

University of Wisconsin–Madison researchers have fabricated graphene into the smallest ribbon structures to date, using a method that is said to make scaling-up simple. In tests with these tiny ribbons, the scientists discovered they were closing in on the properties they needed to move graphene toward usefulness in telecommunications equipment.

Flexible, easy-to-scale nanoribbons move graphene toward use in tech applications imageImage credit: University of Wisconsin−Madison

“Previous research suggested that to be viable for telecommunication technologies, graphene would need to be structured prohibitively small over large areas, (which is) a fabrication nightmare,” says Joel Siegel, a UW–Madison graduate student in physics professor Victor Brar’s group and co-lead author of the study. “In our study, we created a scalable fabrication technique to make the smallest graphene ribbon structures yet and found that with modest further reductions in ribbon width, we can start getting to telecommunications range.”

Graphene oxide gives a boost to new intranasal flu vaccine

Researchers at Georgia State University and Emory University have developed an intranasal influenza vaccine using recombinant hemagglutinin (HA), a protein found on the surface of influenza viruses, as the antigen component of the vaccine.

They also created a two-dimensional nanomaterial (polyethyleneimine-functionalized graphene oxide nanoparticles) and found that it displayed potent adjuvant (immunoenhancing) effects on influenza vaccines delivered intranasally.

Viritech's future hydrogen-powered hypercar to use “graphene-reinforced hydrogen pressure vessels”

A British engineering company called Viritech is working on an ambitious hydrogen-powered hypercar. Dubbed the Apricale, it is being designed primarily as a technical showcase for the company’s hydrogen fuel-cell technology and aims to demonstrate the advantages of hydrogen vehicles over electric powertrains. The hypercar will be sold in limited numbers for around £1.5 million (~$2 million).

Viritech's Apricale graphene-enhanced hydrogen car image

In order to lower the weight of the Apricale’s hardware, it features graphene-reinforced hydrogen pressure vessels. It was explained that the hydrogen storage tanks form part of the structure of the chassis to reduce weight and cost.