Graphene Oxide tagged posts

The nanomaterial graphene oxide — which is used in everything from electronics to sensors for biomolecules — can indirectly affect the immune system via the gut microbiome, as shown in a new study on zebrafish by researchers at Karolinska Institutet in Sweden. The findings are reported in the journal Nature Nanotechnology.

“This shows that we must factor the gut microbiome into our understanding of how nanomaterials affect the immune system,” says the paper’s corresponding author Bengt Fadeel, professor at the Institute o...

New form of graphene oxide is fun to play with – and solves manufacturing challenges. A Northwestern University team is reshaping the world of graphene – literally. The team has turned graphene oxide (GO) into a soft, moldable and kneadable play dough that can be shaped and reshaped into free-standing, three-dimensional structures.

Called “GO dough,” the product might be fun to play with it, but it’s more than a toy. The malleable material solves several long-standing – and sometimes explosive – problems in the graphene manufacturing industry.

“Currently graphene oxide is stored as dry solids or powders, which are prone to co...

Decorating Graphene Oxide with Ionic Liquid Nanodroplets: An Approach Leading to Energy-Dense, High-Voltage Supercapacitors

The ability to charge cellphones in seconds is one step closer after researchers at the University of Waterloo used nanotechnology to significantly improve supercapacitors. Their novel design roughly doubles the amount of electrical energy the rapid-charging devices can hold, helping pave the way for eventual use in everything from smartphones and laptop computers, to electric vehicles and high-powered lasers.

“We’re showing record numbers for the energy-storage capacity of supercapacitors,” said Michael Pope, a professor of chemical engineering who led the Waterloo research. “And the more energy-dense we can make them, the more batteries we can start displacing...

Highlights • The biological effects induced in vitro by three graphene-based nanomaterials on human dental follicle stem cells, were evaluated. • Graphene oxide showed the lowest cytotoxic effect, followed by the nitrogen-doped graphene. • Thermally reduced graphene oxide exhibited high cytotoxic effects.

Research suggests we chew around 800X in an average meal; that’s almost a million times a year. We put our teeth under huge strain, and often require fillings to repair them. Fillings are typically made of a mixture of metals, such as copper, mercury, silver and tin, or composites of powdered glass and ceramic...