The 2023 Nobel Prize in Chemistry has been awarded to Moungi G. Bawendi, Louis E. Brus and Alexei I. Ekimov for the discovery and synthesis of quantum dots, the Royal Swedish Academy of Sciences said in Stockholm.

Quantum dots have unique properties and now spread their light from television screens and LED lamps. They catalyse chemical reactions and their clear light can illuminate tumour tissue for a surgeon, the Academy said in a press release.

Researchers have primarily utilised quantum dots to create coloured light. They believe that in the future quantum dots can contribute to flexible electronics, miniscule sensors, slimmer solar cells and perhaps encrypted quantum communication.

Today quantum dots are an important part of nanotechnology’s toolbox. The 2023 NobelPrize laureates in chemistry have all been pioneers in the exploration of the nanoworld, said the Academy.

In the early 1980s, this year’s chemistry laureates Louis Brus and Alexei Ekimov succeeded in creating — independently of each other — quantum dots, which are nanoparticles so tiny that quantum effects determine their characteristics.

In 1993, chemistry laureate Moungi Bawendi revolutionised the methods for manufacturing quantum dots, making their quality extremely high — a vital prerequisite for their use in today’s nanotechnology.

“Quantum dots are thus bringing the greatest benefit to humankind. Researchers believe that in the future they could contribute to flexible electronics, tiny sensors, thinner solar cells and encrypted quantum communication – so we have just started exploring the potential of these tiny particles,” the release added.

Last year the prestigious Prize was cinched by Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless for the development of click chemistry and bioorthogonal chemistry. Their work in click chemistry has been used to develop pharmaceuticals, mapping DNA while bioorthogonal chemistry refined the pharmaceuticals used to treat cancer.

On October 3, the Royal Swedish Academy of Sciences announced the winners of this year’s Nobel Prize in Physics which was shared by Pierre Agostini, Ferenc Krausz and Anne L’Huillier for “experimental methods that generate attosecond pulses of light for the study of electro dynamics in matter.”

The Nobel Prize for Medicine or Physiology was granted to Katalin Karikó and Drew Weissman for their “discoveries concerning nucleoside base modification that enabled the development of effective mRNA vaccines against COVID-19.”

The recipients of the Nobel Prize in Literature will be announced on October 5 followed by the Prize for Peace on October 6 while the Prize for Economic Sciences will be released on October 9.

The prizes carry a cash award of 10 million Swedish kronor (nearly $900,000) and will be awarded on December 10. The money comes from a bequest left by the prize’s creator, Swedish inventor Alfred Nobel, who died in 1895. 

The Nobel Prizes for 2023 in Medicine or Physiology has been awarded to Katalin Karikó and Drew Weissman

This year’s Nobel Prize for Physiology or Medicine has been jointly awarded to Katalin Karikó and Drew Weissman for their “discoveries concerning nucleoside base modification that enabled the development of effective mRNA vaccines against COVID-19”, The Royal Swedish Academy of Science announced on October 2, 2023.

Through their groundbreaking findings, which have fundamentally changed our understanding of how mRNA interacts with our immune system, the laureates contributed to the unprecedented rate of vaccine development during one of the greatest threats to human health in modern times, the press release said.

Last year the Nobel Prize for Physiology was awarded to Swedish scientist Svante Pääbo “for his discoveries concerning the genomes of extinct hominins and human evolution.” Dr. Pääbo’s pioneering work in an entirely new discipline—paleogenomics—has helped the scientific community understand human evolution and migration at a deeper level.

Thanks to his groundbreaking research, we now have a genome sequence of our closest hominin relatives—the Neanderthals. Dr. Pääbo and his group has also analysed several additional genome sequence from extinct hominins.

The Prize for Physiology or Medicine kicks off a week of Nobel Prize announcements. The winners for Physics will be announced on October 3, followed by Chemistry on October 4. The winners of the Literature, Peace and Economic Sciences Prize will be declared on October 5, October 6 and October 9 respectively.

The prizes carry a cash award of 10 million Swedish kronor (nearly $900,000) and will be awarded on December 10. The money comes from a bequest left by the prize’s creator, Swedish inventor Alfred Nobel, who died in 1895. 

Fall has arrived in Scandinavia, which means Nobel Prize season is here.

The start of October is when the Nobel committees get together in Stockholm and Oslo to announce the winners of the yearly awards.

First up, as usual, is the Nobel Prize in medicine or physiology, which will be announced Monday by a panel of judges at the Karolinska Institute in the Swedish capital. The prizes in physics, chemistry, literature, peace and economics will follow, with one announcement every weekday until October 9.

Here are some things to know about the Nobel Prizes:

The Nobel Prizes were created by Alfred Nobel, a 19th-century businessman and chemist from Sweden. He held more than 300 patents but his claim to fame before the Nobel Prizes was having invented dynamite by mixing nitroglycerine with a compound that made the explosive more stable.

Also Read | Chemistry Nobel goes to trio for development of click chemistry and bioorthogonal chemistry

Dynamite soon became popular in construction and mining as well as in the weapons industry. It made Nobel a very rich man. Perhaps it also made him think about his legacy, because toward the end of his life he decided to use his vast fortune to fund annual prizes “to those who, during the preceding year, have conferred the greatest benefit to humankind.”

The first Nobel Prizes were presented in 1901, five years after his death. In 1968, a sixth prize was created, for economics, by Sweden’s central bank. Though Nobel purists stress that the economics prize is technically not a Nobel Prize, it’s always presented together with the others.

For reasons that are not entirely clear, Nobel decided that the peace prize should be awarded in Norway and the other prizes in Sweden. Nobel historians suspect Sweden’s history of militarism may have been a factor.

During Nobel’s lifetime, Sweden and Norway were in a union, which the Norwegians reluctantly joined after the Swedes invaded their country in 1814. It’s possible that Nobel thought Norway would be a more suitable location for a prize meant to encourage “fellowship among nations.”

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To this day, the Nobel Peace Prize is a completely Norwegian affair, with the winners selected and announced by a Norwegian committee. The peace prize even has its own ceremony in the Norwegian capital of Oslo on Dec. 10 — the anniversary of Nobel’s death — while the other prizes are presented in Stockholm.

The Nobel Prizes project an aura of being above the political fray, focused solely on the benefit of humanity. But the peace and literature awards, in particular, are sometimes accused of being politicized. Critics question whether winners are selected because their work is truly outstanding or because it aligns with the political preferences of the judges.

The scrutiny can get intense for high-profile awards, such as in 2009, when President Barack Obama won the peace prize less than a year after taking office.

The Norwegian Nobel Committee is an independent body that insists its only mission is to carry out the will of Alfred Nobel. However, it does have links to Norway’s political system. The five members are appointed by the Norwegian Parliament, so the panel’s composition reflects the power balance in the legislature.

Also Read | Exhuming new light: On 2022 Medicine Nobel

To avoid the perception that the prizes are influenced by Norway’s political leaders, sitting members of the Norwegian government or Parliament are barred from serving on the committee. Even so, the panel isn’t always viewed as independent by foreign countries. When imprisoned Chinese dissident Liu Xiaobo won the peace prize in 2010, Beijing responded by freezing trade talks with Norway. It took years for Norway-China relations to be restored.

One reason the prizes are so famous is they come with a generous amount of cash. The Nobel Foundation, which administers the awards, raised the prize money by 10% this year to 11 million kronor (about $1 million). In addition to the money, the winners receive an 18-carat gold medal and diploma when they collect their Nobel Prizes at the award ceremonies in December.

Most winners are proud and humbled by joining the pantheon of Nobel laureates, from Albert Einstein to Mother Teresa. But two winners refused their Nobel Prizes: French writer Jean-Paul Sartre, who turned down the literature prize in 1964, and Vietnamese politician Le Duc Tho, who declined the peace prize that he was meant to share with U.S. diplomat Henry Kissinger in 1973.

Several others were not able to receive their awards because they were imprisoned, such as Belarusian pro-democracy activist Ales Bialiatski, who shared last year’s peace prize with human rights groups in Ukraine and Russia.

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Historically, the vast majority of Nobel Prize winners have been white men. Though that’s started to change, there is still little diversity among Nobel winners, particularly in the science categories.

To date, 60 women have won Nobel Prizes, including 25 in the scientific categories. Only four women have won the Nobel Prize in physics and just two have won the economics prize.

In the early days of the Nobel Prizes, the lack of diversity among winners could be explained by the lack of diversity among scientists in general. But today critics say the judges need to do a better job at highlighting discoveries made by women and scientists outside Europe and North America.

The prize committees say their decisions are based on scientific merit, not gender, nationality or race. However, they are not deaf to the criticism. Five years ago, the head of the Royal Swedish Academy of Sciences said it had started to ask nominating bodies to make sure they don’t overlook “women or people of other ethnicities or nationalities in their nominations.”