Bacterial soundtracks revealed by graphene membrane

Have you ever wondered if bacteria make distinctive sounds? If we could listen to bacteria, we would be able to know whether they are alive or not. When bacteria are killed using an antibiotic, those sounds would stop — unless of course the bacteria are resistant to the antibiotic. This is exactly what a team of researchers have now have managed to do: they captured low-level noise of a single bacterium using graphene.