Key points from article :
An artificial neuron that is able to communicate using the neurotransmitter dopamine was developed.
Researchers have developed a brain-machine interface that can communicate based on chemically mediated signals rather than electric signals.
An artificial neuron that could both detect the presence of dopamine and also produce dopamine as a response mechanism was built.
The neuron is made of graphene and a carbon nanotube electrode.
The ability of their artificial neuron to communicate was tested by placing it in a petri dish with some brain cells collected from a rat.
They acknowledge that their setup is quite bulky, which would limit its use as a brain-machine interface.
They published their creation in the journal Nature Electronics.