Authors: George Rajna
A chemist from RUDN University has synthesized new types of optically active materials with the structure of the mineral perovskite.  Human pathogens, such as HIV and viruses causing respiratory tract infection, have molecular fingerprints that are difficult to distinguish. To better detect these pathogens, sensors in diagnostic tools need to manipulate light on a nanoscale.  Scientists are using nanoparticle screening on personal care products and finding previously thought toxic chemicals may not be harmful.  Metal oxide frameworks, or MOFs, are solid materials which can behave like ultra-fine sponges. The cavities in the sponge are of nanosize-about the size of individual molecules.  Now researchers in France reckon they have finally found convincing evidence for the transformation, having built new devices for pressurizing and observing tiny samples of hydrogen.  The phenomenon of metastability, in which a system is in a state that is stable but not the one of least energy, is widely observed in nature and technology.  Four decades after it was predicted, scientist create a skyrmion, and take one step towards efficient nuclear fusion.  While standard quantum hardware entangles particles in two states, the team has found a way to generate and entangle pairs of particles that each has 15 states. 
Comments: 43 Pages.
[v1] 2019-12-23 08:29:26
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