A team of biologists, engineers and materials scientists from Brown University tested the potential toxicity of this material to human cells. They found that the serrated edges of graphene nanoparticles are very sharp and strong, and can easily penetrate into the cell membranes of human skin and immune cells. It can be seen that graphene does have potential serious harm to humans and other animals.

First, what is graphene?

1. Graphene is a two-dimensional crystal composed of carbon atoms, which is the thinnest of the known materials. In fact, graphene originally exists in nature, but the single-layer structure is difficult to peel off.

2. Graphene is stacked layer by layer to form graphite, and the graphite with the thickness of 1 mm contains about 3 million layers of graphene. Pencil gently across the paper, leaving traces may be several layers or even just a layer of graphene. Graphene is a nano-material, which is more stable and has a longer service life than previous carbon materials.

Second, is graphene used for heating?

Graphene heating infrared radiation uses science and technology to transmit natural warmth. The generated band far infrared rays have strong penetrating power and radiation power, obvious temperature control effect and * * * vibration effect, and are easily absorbed by objects and converted into internal energy of objects.