The winners in Chemistry met before the Academy made the official announcement through various Swedish media.
The winners of the Chemistry Novel 2023which was delivered today, leaked by mistake before the official announcement, according to several Swedish media. The winners were: the scientists Moungi Bawendifrom the Massachusetts Institute of Technology (France), Louis Brus, from Columbia University (United States), and Alexei Ekimov, who works at Nanocrystals Technology (Russia).
The three scientists were awarded by “the discovery and synthesis of quantum dots“, reported the Royal Swedish Academy of Sciences when announcing the award. But, hours before, this same thing was revealed for him Swedish newspaper Dagens Nyheter and the NyTeknik scientific magazine portala report also released by the Swedish public radio SR and the SVT national television page. All medias cited a press release from the Swedish Academythat It wasn’t published yet..
“We are trying to understand what happened. We have not made any decision yet, the fact that a press release has been sent is definitely a mistake“he declared to the press Heiner Linkeone of the Committee’s experts.
“We don’t know what happened, we have to investigate it,” he said. Eva Nevelius, spokesperson for the Royal Swedish Academy of Sciences. The filtration from the name of a Nobel winner It is very rare and the Swedish Academy strives to keep the debates secret.
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Nobel Prize in Chemistry: the “discovery and synthesis of quantum dots”
“The winners achieved produce particles so small that their properties are determined by quantum phenomena. These, called quantum dots, are of great importance today in the nanotechnology”, indicated in a statement the Royal Swedish Academy of Sciences when announcing the award.
Quantum dots are tiny particles whose electrons (part of the atom that revolves around the nucleus) have restricted movement, which affects the way they absorb and release visible light and allows very bright colors to be obtained.
As they explained, “physicists have known for a long time that, in theory, in nanoparticles Size-dependent quantum effects could arise, but at that time it was almost impossible to sculpt in nanodimensions; Therefore, few people believed that this knowledge could be put into practice.”
But in the early 1980s, Alexei Ekimov was able to create size-dependent quantum dots in colored glass; The color came from copper chloride nanoparticles and the scientist showed that the size of the particles affected the color of the glass through quantum effects.
A few years later, Louis Brus was the first scientist in the world to demonstrate size-dependent quantum effects in particles floating freely in a fluid; and by 1993, Moungi Bawendi revolutionized the chemical production of quantum dots, resulting in near-perfect particles.
Source: Ambito
