A material used in computer technology could pose health risks to workers who manufacture it, a new study suggests.
Graphene, whose ultra-thin structure consists of densely-packed carbon atoms, has been hailed for its superconductive properties, but could be harmful to the lungs when produced in a particular form, say scientists from the University of Edinburgh.
The study looked at the aerodynamic and toxic properties of graphene-based disc-shaped particles, known as nanoplatelets. Their flexibility enables them to be easily incorporated into plastic and rubber, which gives these materials new and useful properties. Nanoplatelets can also be used to enhance the electronic properties of touch screens.
The researchers found that the particles behaved like tiny ‘Frisbees’ and stay airborne. Their aerodynamic properties mean that when inhaled the nanoplatelets can penetrate deeper into the lungs, compared with other forms of graphene, and could cause damage.
Consequently, those involved in manufacturing and handling graphene-based nanoplatelets could be at risk of lung damage.
Commenting on the findings, Professor Ken Donaldson, the University’s chair of respiratory toxicology, said: “We need to further assess the potential hazards posed by nanoplatelets made of graphene and other materials, so that appropriate health and safety measures can be put in place for those involved in their manufacture.”
The research findings were published in the journal ‘ACS Nano’.
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