An electron microscope distinguishing individual atoms appeared in the British National Laboratory SuperSTEM
Nion Hermes Scanning Transmission Electron Microscope is worth 3.7 million pounds ($ 5.5 million) and allows you to see objects a million times smaller than a human hair. The main focus of the electron microscope is that instead of a beam of photons, like ordinary light microscopes, it uses a beam of electrons. The wavelength of the electrons is smaller, which allows us to obtain a larger increase with better resolution.
As for the scope of such a device, it is extensive. Take, for a start, electrical engineering. Everyone prefers compact wearable devices. Our gadgets are getting smaller day by day. To create them, transistors, semiconductors and other parts are needed, but to create such miniature products, one must be able to operate with materials at the atomic level. After all, if the structure, for example, graphene, a two-dimensional sheet of carbon atoms, add an extra atom, the material itself will change! Therefore, a special atomic control is required, preserving the integrity of the material.
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Scientists in the SuperSTEM laboratory are developing their project with molybdenum disulfide. This is another 2D material, like graphene. It is used as an industrial catalyst, for example, to remove sulfur from fossil fuels. The Danish chemical company Haldor Topsoe uses electron microscopes to study how its catalytic properties can be influenced by interchanging the atoms of molybdenum disulfide.
Super microscope is also in demand in nanomedicine. With it, you can check how securely the drug molecule is attached to the nanoparticle acting as a drug transport.
And still, with its help it is possible to consider crystal structures of particles of meteoric dust. Although all this is just a good start for the future.
As for the scope of such a device, it is extensive. Take, for a start, electrical engineering. Everyone prefers compact wearable devices. Our gadgets are getting smaller day by day. To create them, transistors, semiconductors and other parts are needed, but to create such miniature products, one must be able to operate with materials at the atomic level. After all, if the structure, for example, graphene, a two-dimensional sheet of carbon atoms, add an extra atom, the material itself will change! Therefore, a special atomic control is required, preserving the integrity of the material.
')
Scientists in the SuperSTEM laboratory are developing their project with molybdenum disulfide. This is another 2D material, like graphene. It is used as an industrial catalyst, for example, to remove sulfur from fossil fuels. The Danish chemical company Haldor Topsoe uses electron microscopes to study how its catalytic properties can be influenced by interchanging the atoms of molybdenum disulfide.
Super microscope is also in demand in nanomedicine. With it, you can check how securely the drug molecule is attached to the nanoparticle acting as a drug transport.
And still, with its help it is possible to consider crystal structures of particles of meteoric dust. Although all this is just a good start for the future.
Source: https://habr.com/ru/post/366533/
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