Chemical news and discussions

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weatheriscool
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Joined: Sun May 16, 2021 6:16 pm

Chemical news and discussions

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Scientists demonstrate a better, more eco-friendly method to produce hydrogen peroxide
https://phys.org/news/2021-06-scientist ... oxide.html
by University of Illinois at Urbana-Champaign
University of Illinois researchers demonstrate a more efficient and environmentally friendly method to produce hydrogen peroxide with palladium-gold nanoparticles, a catalyst that they found performs better when the palladium particles are surrounded by gold. Credit: Claire Benjamin/University of Illinois Urbana-Champaign

Hydrogen peroxide (H2O2) is used to disinfect minor cuts at home and for oxidative reactions in industrial manufacturing. Now, the pandemic has further fueled demand for this chemical and its antiseptic properties. While affordable at the grocery store, H2O2 is actually difficult and expensive to manufacture at scale.

A team led by the University of Illinois Urbana-Champaign has demonstrated a more efficient and environmentally friendly method to produce H2O2, according to a recent study published in the Journal of the American Chemical Society.
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caltrek
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My Ph.D. Supervisor Just Won the Nobel Prize in Chemistry for Designing a Safer, Cheaper and Faster Way to Build Molecules and Make Medicine
David Nagib
October 6, 2021

https://theconversation.com/my-ph-d-sup ... ine-169427

Introduction:
(The Conversation) The reason that ibuprofen treats headaches and ice cream tastes sweet is that their chemical components fit perfectly into certain receptors in your body. The better a drug or flavor molecule fits with its matching receptor, the more effective the medicine or tastier the treat.

But an interesting quirk of nature is that many molecules can come in two versions – a right–handed version and left–handed version – and receptors in your body must match the handedness of a molecule to fit correctly. A left–handed glove won’t fit on your right hand.

So how do chemists make the correct version of a molecule so that drugs work as intended?

This is a question I as a chemist was deeply fascinated by when I started my Ph.D. studies with Dave MacMillan at Princeton. And he, along with Ben List of the Max Planck Institute, have together won the 2021 Nobel Prize in Chemistry for discovering entirely new ways to make molecules of one orientation or another.

They developed a new simple type of catalyst – called asymmetric organocatalysts. These catalysts are able to efficiently produce molecules with a particular 3-D orientation and have enabled chemists to discover and manufacture safe and effective drugs.

Image
All molecules can come in right–handed or left–handed versions that are mirror opposites of each other but not identical.
πϵρήλιο via WikimediaCommons
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