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The MRI-based technology can allow making new, green microchips and revolutionary sensors



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The MRI-based technology can allow making new, green microchips and revolutionary sensors


In phys.org is an interesting article that the researchers create an MRI-like technique for imaging magnetic waves(1). The new ultrathin magnets can make many things in many fields of technology. The new sensor is using spin waves(2) for creating the magnetic field, and it can detect the magnetic field radiated inside the atom. That means this kind of technology can use in extremely small microchips and MRI(Magnetic Resonance Imaging)-based microscopes, which can detect the magnetic fields of objects, which is extremely small. 

The spin waves, which are created by using atom-thick magnets are promising information carriers because they are producing very low heat. And that means they can be used in the new nanotechnical microchips, which are controlling nanorobots. Using spin-waves the magnetic fields can move single atoms on the tables, and that thing opens new paths for nanotechnology. 

The system bases the nitrogen-vacancy (NV) centers where a nitrogen atom is sitting on the carbon diamond lattice. The rotating nitrogen atoms are creating the spin-field. That thing allows the system to detect very small-size objects by using magnetic fields. The problem with the MRI-technology is to create a small enough antenna or detector, which can separate the magnetic fields, what is coming from the resonating object. The idea of the MRI-scanner is that the hydrogen in the body is stressed with some kind of radiation. 

And then the hydrogen atoms will emit the radio frequential signal. In normal research of the human body, the accuracy of the MRI is about 1 mm. The problem with MRI-scanner is how to make the antenna, which can be small enough, that it would detect extremely small objects. And the benefit of MRI is that can observe the processes in the living cells. 

But the MRI can use to observe other things like bacteria and the thing, what interests researchers is how the bacteria is moving. The movement of the bacteria is a very well known thing. It happens by rotating the small fibers by using small electric motors. But the details of the process has been a mystery. And the thing can uncover how the bacteria is aiming its target. The MRI can uncover what kind of processes are causing that bacteria will start to aiming for some cells. The MRI can observe reactions in the living cells, which uncovers many things about their processes. 

If that process can uncover, the new type of chemicals can just call bacteria away from the area, where they can infect people. Or the movement of bacteria can just paralyze. Sama way the extremely accurate MRI-sensor can observe how virus releases its genome to the cell. If that thing can be denied, that will open the path to a new type of antiviral medicals. Those medicals can just deny the virus to release the genomes. 


Sources: 


(1) https://phys.org/news/2020-11-mri-like-technique-imaging-magnetic.html


(2) https://www.uni-muenster.de/Physik.AP/Demokritov/en/Forschen/Forschungsschwerpunkte/mBECwasw.html


Image: https://phys.org/news/2020-11-mri-like-technique-imaging-magnetic.html


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