Face masks that contain graphene may pose health risks

Health Canada is advising Canadians not to use face masks that contain graphene because there is a potential that they could inhale graphene particles, which may pose health risks.

Graphene 'smart surfaces' now tunable for visible spectrum

Researchers have created optical devices with a unique range of tunability, covering the entire electromagnetic spectrum, including visible light.

Researchers develop materials for oral delivery of insulin medication

A revolutionary technology could dramatically improve the well-being of diabetic patients through a simple and straightforward way: an insulin oral delivery system that could replace traditional subcutaneous injections without the side effects caused by frequent injection.

Glass nanopore pulls DNA like spaghetti through a needle

The purely electrical technique captures cell-free DNA from the surface of a sample.

Adding a key capability to atom-based radio communications

Researchers have demonstrated an atom-based sensor that can determine the direction of an incoming radio signal, another key part for a potential atomic communications system that could be smaller and work better in noisy environments than conventional technology.

A safer way to deploy bacteria as environmental sensors

Encapsulating modified bacteria in tough hydrogel spheres prevents them from spreading genes to other microbes.

Tattoo made of gold nanoparticles revolutionizes medical diagnostics

Color changes of gold nanoparticles under the skin reveal concentration changes of substances in the body.