SALIQ

27/11/2022

"La Química del helado"🤔😋🧑‍🔬🍦
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27/11/2022

"La Química del Tequila"🤔🧑‍🔬👩‍🔬😮
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05/10/2022

The Nobel Prize in Chemistry 2022 is about finding new chemical ideals and letting simplicity and functionality take precedence.

The 2022 chemistry laureate Barry Sharpless, who is now being awarded his second Nobel Prize in Chemistry, was the one who started the snowball rolling. Around the turn of the century, he coined the concept of click chemistry for a functional form of chemistry, where molecular building blocks snap together quickly and efficiently. The snowball became an avalanche when 2022 chemistry laureates Morten Meldal and Barry Sharpless – independently of each other – discovered what has become the crown jewel of click chemistry: the copper catalysed azide-alkyne cycloaddition.

Click chemistry’s simplicity has led to the reaction becoming tremendously popular, both at research laboratories and in industrial development. Among other things, click reactions facilitate the production of new materials that are fit for purpose. In pharmaceutical research, click chemistry is used to produce and optimise substances that can potentially become pharmaceuticals. There are many examples of what click chemistry can achieve.

Carolyn Bertozzi – the third of this year’s chemistry laureates – developed click reactions that can be used inside living organisms. Her bioorthogonal reactions – which occur without disturbing the normal chemistry of the cell – are used globally to map how cells function. Some researchers are now investigating how these reactions can be used to diagnose and treat cancer.

We do not yet know whether these new therapies will work – but one thing is clear: research has just touched on the enormous potential of click chemistry and bioorthogonal chemistry.

The 2022 Nobel Prize in Chemistry has been awarded to Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless “for the development of click chemistry and bioorthogonal chemistry.”

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05/10/2022

When Marie Skłodowska Curie was awarded the 1911 Nobel Prize in Chemistry she became the first person ever to receive two Nobel Prizes.

She had previously received the physics prize for her work on radioactivity.

Who will join Marie Skłodowska Curie as a chemistry laureate? Find out when the 2022 Nobel Prize in Chemistry is announced today.

05/10/2022

Premio Nobel de Química 2022. 🧪🧑‍🔬

BREAKING NEWS
The Royal Swedish Academy of Sciences has decided to award the 2022 Nobel Prize in Chemistry to Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless “for the development of click chemistry and bioorthogonal chemistry.”

The 2022 Nobel Prize in Chemistry is about making difficult processes easier. Barry Sharpless and Morten Meldal have laid the foundation for a functional form of chemistry – click chemistry – in which molecular building blocks snap together quickly and efficiently. Carolyn Bertozzi has taken click chemistry to a new dimension and started utilising it in living organisms.

Chemists have long been driven by the desire to build increasingly complicated molecules. In pharmaceutical research, this has often involved artificially recreating natural molecules with medicinal properties. This has led to many admirable molecular constructions, but these are generally time consuming and very expensive to produce.

Barry Sharpless – who is now being awarded his second Nobel Prize in Chemistry – started the ball rolling. Around the year 2000, he coined the concept of click chemistry, which is a form of simple and reliable chemistry, where reactions occur quickly and unwanted by-products are avoided.

Shortly afterwards, Morten Meldal and Barry Sharpless – independently of each other – presented what is now the crown jewel of click chemistry: the copper catalysed azide-alkyne cycloaddition. This is an elegant and efficient chemical reaction that is now in widespread use. Among many other uses, it is utilised in the development of pharmaceuticals, for mapping DNA and creating materials that are more fit for purpose.

Carolyn Bertozzi took click chemistry to a new level. To map important but elusive biomolecules on the surface of cells – glycans – she developed click reactions that work inside living organisms. Her bioorthogonal reactions take place without disrupting the normal chemistry of the cell.

These reactions are now used globally to explore cells and track biological processes. Using bioorthogonal reactions, researchers have improved the targeting of cancer pharmaceuticals, which are now being tested in clinical trials.

Click chemistry and bioorthogonal reactions have taken chemistry into the era of functionalism. This is bringing the greatest benefit to humankind.

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04/10/2022

Premio Nobel de Física 2022 🫱🏽‍🫲🏾

BREAKING NEWS
The Royal Swedish Academy of Sciences has decided to award the 2022 Nobel Prize in Physics to Alain Aspect, John F. Clauser and Anton Zeilinger “for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science.”

Alain Aspect, John Clauser and Anton Zeilinger have each conducted groundbreaking experiments using entangled quantum states, where two particles behave like a single unit even when they are separated. Their results have cleared the way for new technology based upon quantum information.

The ineffable effects of quantum mechanics are starting to find applications. There is now a large field of research that includes quantum computers, quantum networks and secure quantum encrypted communication.

One key factor in this development is how quantum mechanics allows two or more particles to exist in what is called an entangled state. What happens to one of the particles in an entangled pair determines what happens to the other particle, even if they are far apart.

For a long time, the question was whether the correlation was because the particles in an entangled pair contained hidden variables, instructions that tell them which result they should give in an experiment. In the 1960s, John Stewart Bell developed the mathematical inequality that is named after him. This states that if there are hidden variables, the correlation between the results of a large number of measurements will never exceed a certain value. However, quantum mechanics predicts that a certain type of experiment will violate Bell’s inequality, thus resulting in a stronger correlation than would otherwise be possible.

John Clauser developed John Bell’s ideas, leading to a practical experiment. When he took the measurements, they supported quantum mechanics by clearly violating a Bell inequality. This means that quantum mechanics cannot be replaced by a theory that uses hidden variables.

Some loopholes remained after John Clauser’s experiment. Alain Aspect developed the setup, using it in a way that closed an important loophole. He was able to switch the measurement settings after an entangled pair had left its source, so the setting that existed when they were emitted could not affect the result.

Using refined tools and long series of experiments, Anton Zeilinger started to use entangled quantum states. Among other things, his research group has demonstrated a phenomenon called quantum teleportation, which makes it possible to move a quantum state from one particle to one at a distance.

“It has become increasingly clear that a new kind of quantum technology is emerging. We can see that the laureates’ work with entangled states is of great importance, even beyond the fundamental questions about the interpretation of quantum mechanics,” says Anders Irbäck, Chair of the Nobel Committee for Physics.

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23/05/2022

Wow.🥺

29/04/2022

Sulfato de níquel y etilendiamina💜💚

17/04/2022

pero de 1958 falleció Rosalind Franklin, la mujer que tomó una fotografía y que lo cambió todo 🧬

Rosalind tenía 30 años cuando generó la "Foto 51", que fue clave para dilucidar la estructura del ADN, pero su notable trabajo sobre el ADN tan sólo es una fracción de su historia y legado.

Rosalind fue una investigadora incansable de los secretos de la naturaleza y trabajó en biología, química y física, con un enfoque social. Hizo importantes avances en la ciencia del carbono y se convirtió en una experta de los virus que causan enfermedades en plantas y humanos.

Hoy recordamos a esta mujer que ayudó a develar el secreto de la vida.