A graphene drum can use to make the bacterial soundtrack. That thing might not seem anything else than some kind of nerd thing. That they can publish on YouTube.
But the graphene drum can use to make the real things. Sound waves are the pressure impulses that can move objects. The graphene drums and bacteria can use to transfer parts for the nanomachines. The problem with nanomachines is to create a system that can hold their parts long enough that they can take their part in the entirety.
The bacteria that are in that graphene drum can equip with magnetic crystals. And the magnetic field can use to turn that bacteria in the wanted direction. Many of the nanomachines are operating in liquid. So the bacteria and graphene drum can use for making the complicated structures on a molecular scale.
The magnetic systems allow moving nanomachines where is iron. But with non-magnetic molecules must be found some other method to move them. And one of those methods is the sound waves. That system is suitable if the nanomachine will be made to operate in the liquid.
The problem with complicated nanomachines is that their parts are a little bit too heavy for optical tweezers or crossing laser rays. The pressure tweezers are too heavy tools. When the small- molecular-size complicated structures must position in the right place. The graphene drums can use as movers and acoustic tweezers.
Putting four graphene drums in the right position makes it possible to put sound waves crossing at the right point. Then that allows anchoring of the molecule at the right point. The problem with the nanomachines and especially in the protein-based nanomachines is that. Their shape means lots of their actions. The system that moves those proteins must keep them in the perfect shape.
Sources:
https://scitechdaily.com/what-do-bacteria-sound-like-bacterial-soundtracks-revealed-by-nanotechnology/
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