The potential toxicity of graphene and graphene oxide has been on people's minds lately. This is an area that has always received some attention, but recently there have been rumors and wild speculations about the adoption of graphene oxide and the risks involved.
Researchers have been studying the toxicity of graphene and graphene oxide for many years. While these materials have not yet been established as completely safe for use, there are quite a few research results that indicate that graphene can be relatively safe under the appropriate conditions.
A major concern has always been the inhalation of graphene or GO particles into the lungs. In 2018, researchers from Germany used a 3D lung model to show that there's no acute lung damage from inhaled graphene particles.
Probably contributing to the recent graphene scare, was Health Canada's decision to ban graphene masks. Later on HC decided that the sale of graphene-enhanced face masks can resume, after the agency assessed the masks and found no health risks of concern.
It seems that more tests can help set people's minds at ease and also drive the industry towards safe use practices.